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1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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3 <HEAD>
4 <TITLE>PostgreSQL FAQ in Japanese</TITLE>
5 </HEAD>
6 <BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#FF0000" VLINK="#A00000" ALINK="#0000FF">
7 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=x-euc-jp">
8
9 <div id="pgContentWrap">
10
11 <h1>PostgreSQL(¥Ý¥¹¥È¥°¥ì¥¹¡¦¥­¥å¡¼¡¦¥¨¥ë)¤Ë¤Ä¤¤¤Æ¤è¤¯¤¢¤ë¼ÁÌä¤È¤½¤Î²òÅú(FAQ)</h1>
12 <p>¸¶Ê¸ºÇ½ª¹¹¿·Æü:              Mon Oct  9 20:28:14 EDT 2006</p>
13 <p>¸½ºß¤Î°Ý»ý´ÉÍý¼Ô:    Bruce Momjian (<A
14 href="mailto:bruce@momjian.us">bruce@momjian.us</a>)<br />
15 Maintainer of Japanese Translation:     Jun Kuwamura (<A
16 href="mailto:juk at PostgreSQL.jp">juk at PostgreSQL.jp</a>)<br /></p>
17 <p>¤³¤Îʸ½ñ¤ÎºÇ¿·ÈǤÏ<a href=
18     "http://www.postgresql.org/docs/faqs.FAQ.html">
19     http://www.postgresql.org/docs/faqs.FAQ.html</a>
20 ¤Ç¸«¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£</p>
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22     "http://www.postgresql.org/docs/faq/">
23     http://www.postgresql.org/docs/faq/</a>
24 <br />
25 ¤Ë²òÅú¤¬¤¢¤ê¤Þ¤¹¡£</p>
26
27 <p><small><pre>
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29 [ÌõÃí¡§
30         ÆüËܸìÈǤÎFAQ¤Ï¡¢
31                 http://www.postgresql.org/docs/faqs.FAQ_japanese.html
32         ¤Ë¤¢¤ê¤Þ¤¹¡£
33         ºÇ¿·¤ÎÆüËܸìÈǤˤĤ¤¤Æ¤Ï¡¢¤³¤Îʸ½ñ¤ÎºÇ¸å¤Ë¤¢¤ë<a
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36 ]
37 </pre></small></p>
38
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56
57
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107
108
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149
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158
159     <small><pre>
160     [ÌõÃí¡§
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163     </pre></small>
164     <p>PostgreSQL Data Base Management System</p>
165     <p>
166     Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
167     Portions Copyright (c) 1994-1996 Regents of the University of California</p>
168     <p>
169     Permission to use, copy, modify, and distribute this software and its
170     documentation for any purpose, without fee, and without a written
171     agreement is hereby granted, provided that the above copyright notice
172     and this paragraph and the following two paragraphs appear in all
173     copies.</p>
174     <p>
175     IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
176     FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
177     INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
178     DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF
179     THE POSSIBILITY OF SUCH DAMAGE.</p>
180     <p>
181     THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
182     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
183     AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER
184     IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO
185     OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
186     MODIFICATIONS.</p>
187
188     <small><pre>
189         POSTGRESQL ¥Ç¡¼¥¿¥Ù¡¼¥¹´ÉÍý¥·¥¹¥Æ¥à
190
191         ÉôʬŪÃøºî¸¢ (c) 1996-2006, PostgreSQL¹ñºÝ³«È¯¥Á¡¼¥à
192         ÉôʬŪÃøºî¸¢ (c) 1994-1996 ¥«¥ê¥Õ¥©¥ë¥Ë¥¢Âç³ØËܹ»
193
194
195           ËÜ¥½¥Õ¥È¥¦¥§¥¢¤ª¤è¤Ó¤½¤Îʸ½ñ°ì¼°¤Ï¾åµ­¤ÎÃøºî¸¢É½¼¨¤È¡¢¤³¤Îʸ¾Ï
196         ¤ª¤è¤Ó¤³¤ì¤Ë³¤¯Æó¤Ä¤ÎÃÊÍÁ´¤Æ¤ÎÊ£À½¤ËźÉÕ¤µ¤ì¤Æ¤¤¤ë¸Â¤ê¤Ë¤ª¤¤
197         ¤Æ¡¢»ÈÍÑ¡¢Ê£À½¡¢½¤Àµ¤ª¤è¤ÓÇÛÉդεö²Ä¤ò¡¢¤¤¤«¤Ê¤ëÌÜŪ¤Ç¤¢¤Ã¤Æ¤â¡¢
198         Ìµ½þ¤Ç¤«¤ÄƱ°Õ½ñ̵¤·¤Ë¹Ô¤Ê¤¨¤ë¤³¤È¤ò¤³¤³¤Ëǧ¤á¤Þ¤¹¡£
199         
200           ¥«¥ê¥Õ¥©¥ë¥Ë¥¢Âç³Ø¤Ï¡¢¤¤¤«¤Ê¤ëÅö»ö¼Ô¤Ë¤¿¤¤¤·¤Æ¤â¡¢Íø±×¤Î²õ¼º¤ò
201         ´Þ¤à¡¢Ä¾ÀÜŪ¡¢´ÖÀÜŪ¡¢ÆÃÊÌ¡¢¶öÁ³¤¢¤ë¤¤¤ÏɬÁ³Åª¤Ë¤«¤«¤ï¤é¤ºÀ¸¤¸¤¿
202         Â»³²¤Ë¤Ä¤¤¤Æ¡¢¤¿¤È¤¨¥«¥ê¥Õ¥©¥ë¥Ë¥¢Âç³Ø¤¬¤³¤ì¤é¤Î»³²¤Ë¤Ä¤¤¤ÆÁÊÄÉ
203         ¤ò¼õ¤±¤Æ¤¤¤¿¤È¤·¤Æ¤â¡¢°ìÀÚ¤ÎÀÕǤ¤òÉ餤¤Þ¤»¤ó¡£
204         
205           ¥«¥ê¥Õ¥©¥ë¥Ë¥¢Âç³Ø¤Ï¡¢¾¦ÍÑÌÜŪ¤Ë¤ª¤±¤ë°ÅÌÛ¤ÎÊݾڤȡ¢ÆÃÄêÌÜŪ¤Ç
206         ¤ÎŬ¹çÀ­¤Ë´Ø¤·¤Æ¤Ï¤â¤È¤è¤ê¡¢¤³¤ì¤é¤Ë¸Â¤é¤º¡¢¤¤¤«¤Ê¤ëÊݾڤâÊü´þ¤¹
207         ¤ë¤³¤È¤òÌÀ¸À¤·¤Þ¤¹¡£°Ê²¼¤ËÍÑ°Õ¤µ¤ì¤¿¥½¥Õ¥È¥¦¥§¥¢¤Ï¡Ö¤½¤Î¤Þ¤Þ¡×¤ò
208         ´ðËܸ¶Íý¤È¤·¡¢¥«¥ê¥Õ¥©¥ë¥Ë¥¢Âç³Ø¤Ï¤½¤ì¤ò°Ý»ý¡¢»Ù±ç¡¢¹¹¿·¡¢²þÎɤ¢
209         ¤ë¤¤¤Ï½¤Àµ¤¹¤ëµÁ̳¤òÉ餤¤Þ¤»¤ó¡£
210
211     [ÌõÃí¡§
212         Ãøºî¸¢¤Ë´Ø¤¹¤ëÀµÊ¸¤Ï¾åµ­¤Î±Ñ¸ì¤Ë¤è¤ëɽµ­¤Ç¤¹¡£ÆüËܸìÌõ¤Ï¤¢¤¯¤Þ¤Ç
213         »²¹Í¤Ç¤¹¡£
214     ]
215     </pre></small>
216
217 <h4 id="item1.4">1.4</a>) PostgreSQL¤ò¥µ¥Ý¡¼¥È¤¹¤ë¥×¥é¥Ã¥È¥Û¡¼¥à¤Ï¡©</h4>
218
219     <p>°ìÈÌŪ¤Ë¡¢ºÇ¶á¤ÎUnix¸ß´¹¥×¥é¥Ã¥È¥Û¡¼¥à¤Ç¤¢¤ì¤ÐPostgreSQL¤ò²ÔƯ¤µ
220     ¤»¤é¤ì¤ë¤Ï¤º¤Ç¤¹¡£¥ê¥ê¡¼¥¹¤Î»þÅÀ¤Ç¼ÂºÝ¤Ë¥Æ¥¹¥È¤ò¹Ô¤Ê¤Ã¤¿¤³¤È¤ÎÊó¹ð¤¬
221     ¤Ê¤µ¤ì¤¿¥×¥é¥Ã¥È¥Û¡¼¥à¤Ë¤Ä¤¤¤Æ¤Ï¥¤¥ó¥¹¥È¡¼¥ë¼ê°ú½ñ¤ËÎóµó¤·¤Æ¤¢¤ê¤Þ¤¹¡£
222     </p>
223
224     <p>PostgreSQL ¤Ï¡¢Win2000 SP4, WinXP, ¤½¤·¤Æ¡¢Win2003 ¤Ê¤É Microsoft
225     Windows NT¥Ù¡¼¥¹¤Î¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹¥Æ¥à¤Ç¡¢¥Í¥¤¥Æ¥£¥Ö¤ËÁö¤ê¤Þ¤¹¡£
226     ¤¢¤é¤«¤¸¤á¥Ñ¥Ã¥±¡¼¥¸¤Ë¤µ¤ì¤¿¥¤¥ó¥¹¥È¡¼¥é¤¬<a href= 
227     "http://pgfoundry.org/projects/pginstaller">
228     http://pgfoundry.org/projects/pginstaller</a>
229     ¤Ë¤¢¤ê¡¢ÍøÍѤǤ­¤Þ¤¹¡£MSDOS¥Ù¡¼¥¹¤ÎWindows¤Î¥Ð¡¼¥¸¥ç¥ó(Win95, Win98,
230     WinMe)¤Ç¤Ï¡¢Cygwin¤ò»È¤Ã¤Æ PostgreSQL ¤òÁö¤é¤»¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£</p>
231
232     <small><pre>
233     [ÌõÃí
234         pgInstaller ¤ÎÆþ¼ê¤ÏFTP¥ß¥é¡¼¥µ¥¤¥È¤Î win32 ¥Ç¥£¥ì¥¯¥È¥ê¤«¤é¤â²Äǽ¤Ç¤¹¡£
235             http://www.postgresql.org/mirrors-ftp.html
236
237         ¾Ü¤·¤¯¤Ï¡¢¼¡¤Î WindowsÈǤ˴ؤ¹¤ëFAQ¤ÎÏÂÌõ¤ò¤´¤é¤ó¤¯¤À¤µ¤¤¡£
238         http://old.postgresql.jp/wg/jpugdoc/FAQ_windows.ja.html
239     ]
240     </pre></small>
241
242     <p>¼¡¤Î¥µ¥¤¥È¤Ë Novell Netware 6 ¤Ø¤Î°Ü¿¢ÈǤ⤢¤ê¤Þ¤¹¡£
243     <a href="http://forge.novell.com">http://forge.novell.com</a>
244     ¤Þ¤¿¡¢OS/2 (eComStation) ¥Ð¡¼¥¸¥ç¥ó¤Ï¡¢<a href=
245     "http://hobbes.nmsu.edu/cgi-bin/h-search?sh=1&button=Search&key=postgreSQL&stype=all&sort=type&dir=%2F">
246     http://hobbes.nmsu.edu/cgi-bin/h-search?sh=1&button=Search&key=postgreSQL&stype=all&sort=type&dir=%2F</a>¤Ë¤¢¤ê¤Þ¤¹¡£</p>
247 <br />
248
249
250 <h4 id="item1.5">1.5</a>) PostgreSQL ¤Ï¤É¤³¤«¤éÆþ¼ê¤Ç¤­¤Þ¤¹¤«¡©</h4>
251
252     <p>Web¥Ö¥é¥¦¥¶·Ðͳ¤À¤È¡¢<a href="http://www.postgresql.org/ftp/">
253     http://www.postgresql.org/ftp/</a>¡¢¤½¤ì¤«¤é¡¢ftp·Ðͳ¤À¤È¡¢
254     <a href="ftp://ftp.PostgreSQL.org/pub/">
255     ftp://ftp.PostgreSQL.org/pub/</a> ¤ò»È¤¤¤Þ¤¹¡£</p>
256
257
258 <h4 id="item1.6">1.6</a>) ºÇ¿·¤Î¥ê¥ê¡¼¥¹¤Ï¤É¤ì¤Ç¤¹¤«¡©</h4>
259
260     <p>PostgreSQL ¤ÎºÇ¿·ÈǤϥС¼¥¸¥ç¥ó 8.1.5 ¤Ç¤¹¡£</p>
261     <p>²æ¡¹¤Ï¡¢1ǯËè¤Ë¥á¥¸¥ã¡¼¥ê¥ê¡¼¥¹¤ò¡¢¿ô¥õ·î¤´¤È¤Î¥Þ¥¤¥Ê¡¼¥ê¥ê¡¼¥¹¤ò
262     ¹Ô¤Ê¤¦¤³¤È¤ò·×²è¤·¤Æ¤¤¤Þ¤¹¡£</p>
263
264     <p><small><pre>
265     [ÌõÃí
266         ¥Ð¡¼¥¸¥ç¥óÈÖ¹æ¤Î x.y.z ¤ÎºÇ½é¤Î x.y ¤¬¥á¥¸¥ã¡¼¥ê¥ê¡¼¥¹¤ÎÈÖ¹æ¤ËÁê
267         Åö¤·¡¢ºÇ¸å¤Î z ¤¬¥Þ¥¤¥Ê¡¼¥ê¥ê¡¼¥¹¤ÎÈÖ¹æ¤Ë¤Ê¤ê¤Þ¤¹¡£¥á¥¸¥ã¡¼¥ê¥ê¡¼
268         ¥¹¤ÎÈֹ椬Ʊ¤¸¤Ç¤¢¤ì¤Ð¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¡¦¥¯¥é¥¹¥¿¤Ë¸ß´¹À­¤¬¤¢¤ê¤Þ¤¹¡£
269     ]
270     </pre></small></p>
271
272
273 <h4 id="item1.7">1.7</a>) ¥µ¥Ý¡¼¥È¤Ï¤É¤³¤Ç¼õ¤±¤é¤ì¤Þ¤¹¤«¡©</h4>
274
275     <p>PostgreSQL ¥³¥ß¥å¥Ë¥Æ¥£¤Ï¿¤¯¤Î¥æ¡¼¥¶¤Î¤¿¤á¤Ë¡¢ÅŻҥ᡼¥ë·Ðͳ¤Î»Ù
276     ±ç¤òÄ󶡤·¤Æ¤¤¤Þ¤¹¡£ÅŻҥ᡼¥ë¥ê¥¹¥È¤ò¥µ¥Ö¥¹¥¯¥é¥¤¥Ö¤¹¤ë¤¿¤á¤Î¥á¥¤¥ó
277     ¤È¤Ê¤ë¥¦¥§¥Ö¥µ¥¤¥È¤Ï
278     <a href="http://www.postgresql.org/community/lists/">
279     http://www.postgresql.org/community/lists/</a>¤Ç¤¹¡£¤³¤ì¤«¤é¡¢»Ï¤á¤ë
280     ¤Î¤Ç¤¢¤ì¤Ð <i>general</i> ¤Þ¤¿¤Ï¡¢<i>bugs</i> ¤È¤¤¤Ã¤¿¥ê¥¹¥È¤¬¤è¤¤¤Ç
281     ¤·¤ç¤¦¡£</p>
282
283     <p>¥á¥¸¥ã¡¼¤ÊIRC ¥Á¥ã¥ó¥Í¥ë¤Ï¡¢Freenode (<i>irc.freenode.net</i>)¤Î
284     <i>#postgresql</i> ¤È¤¤¤¦¥Á¥ã¥ó¥Í¥ë¤Ç¤¹¡£UNIX ¥³¥Þ¥ó¥É¤Ç¤Ï¡¢
285     <code>irc -c '#PostgreSQL' "$USER" irc.freenode.net</code> ¤ò»È¤Ã¤Æ
286     »²²Ã¤Ç¤­¤Þ¤¹¡£Æ±¤¸¥Í¥Ã¥È¥ï¡¼¥¯¤Ë¡¢¥¹¥Ú¥¤¥ó¸ì¤Î¥Á¥ã¥ó¥Í¥ë
287     (<i>#postgresql-es</i>)¤â¤¢¤ê¡¢¥Õ¥é¥ó¥¹¸ì¤Î¥Á¥ã¥ó¥Í¥ë
288     (<i>#postgresqlfr</i>)¤â¤¢¤ê¤Þ¤¹¡£EFNet¤Ë¤âPostgreSQL¥Á¥ã¥ó¥Í¥ë¤¬¤¢
289     ¤ê¤Þ¤¹¡£</p>
290     
291
292     <p><small><pre>
293     [ÌõÃí:
294           1999ǯ7·î23Æü¡¢ÆüËܥݥ¹¥È¥°¥ì¥¹¥æ¡¼¥¶¡¼²ñ¡¢Î¬¾ÎJPUG¤¬ÀßΩ¤µ¤ì¤Þ¤·¤¿¡£
295         JPUG ¤ÏÈó±ÄÍøÁÈ¿¥¤Ç¡¢PostgreSQL¤òÍøÍѤ¹¤ë¿Íã¤ÎÁê¸ß¶¨ÎϤξì¤È¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£  
296         (2006ǯ ÆÃÄêÈó±ÄÍø³èÆ°(NPO)Ë¡¿ÍÆüËÜPostgreSQL¥æ¡¼¥¶²ñ¤Ë¤Ê¤ê¤Þ¤·¤¿¡£
297         Web²ñ°÷¤ÈÀµ²ñ°÷¤Î²ñÈñ¤Ï̵ÎÁ¤Ç¤¹¤¬¡¢¶¨»¿²ñ°÷¤Î²ñÈñ¤È²ñ°÷¤Î¹×¸¥¤Ç
298           ²ñ¤Ï±¿±Ä¤µ¤ì¤Æ¤¤¤Þ¤¹¡£)
299         ¾Ü¤·¤¯¤Ï¡¢JPUG ¤ÎWeb ¥µ¥¤¥È:
300                 <a href="http://www.PostgreSQL.jp/">http://www.PostgreSQL.jp/</a>
301         ¤ò¤´¤é¤ó¤¯¤À¤µ¤¤¡£
302
303         ÆüËܸì¤ÎIRC¥Á¥ã¥ó¥Í¥ë '#PostgreSQL:*.jp' ¤â¸ºß¤·¤Þ¤¹¡£
304     ]
305     </pre></small></p>
306
307     <p>¾¦ÍÑ¥µ¥Ý¡¼¥È²ñ¼Ò¤Î¥ê¥¹¥È¤Ï<a
308     href="http://www.postgresql.org/support/professional_support">
309     http://www.postgresql.org/support/professional_support</a>¤Ë¤¢¤ê¤Þ¤¹¡£</p>
310
311
312 <h4 id="item1.8">1.8</a>) ¥Ð¥°¥ì¥Ý¡¼¥È¤Ï¤É¤Î¤è¤¦¤Ëȯ¿®¤·¤Þ¤¹¤«¡©
313 </h4>
314
315     <p><a href=
316     "http://www.postgresql.org/support/submitbug">
317     http://www.postgresql.org/support/submitbug</a>
318     ¤ÎPostgreSQL ¥Ð¥°¥Õ¥©¡¼¥à¤òˬ¤ì¤Æ¤¯¤À¤µ¤¤¡£ ¥Ð¥°¥ì¥Ý¡¼¥È¤òÄó½Ð¤¹¤ë»ÅÊý
319     ¤Ë¤Ä¤¤¤Æ¤Î¼ê°ú¤È»Ø¿Ë¤¬¤¢¤ê¤Þ¤¹¡£</p>
320
321     <p> ¤½¤ì¤ÈƱ»þ¤Ë ftp ¥µ¥¤¥È <A
322     href="ftp://ftp.PostgreSQL.org/pub/">ftp://ftp.PostgreSQL.org/pub/</a>
323     ¤Ç¡¢ºÇ¿·¥Ð¡¼¥¸¥ç¥ó¤Î PostgreSQL ¤òõ¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤¡£</p>
324
325
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327 </h4>
328
329     <p>PostgreSQL¤Ï³ÈÄ¥¤µ¤ì¤¿<small>SQL:2003</small>¤Î¥µ¥Ö¥»¥Ã¥È¤ò¥µ¥Ý¡¼¥È
330     ¤·¤Þ¤¹¡£²æ¡¹¤Î¥Ú¡¼¥¸¤Î <A
331     href="http://www.PostgreSQL.org/docs/todo.html">TODO</a> ¥ê¥¹¥È¤Ë¡¢
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333
334
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336     <ul>
337    <li>´û¤Ë¤³¤³¤Ë¤¢¤ëµ¡Ç½¤Ï¡¢
338     <a href="http://www.postgresql.org/docs/faqs.TODO.html">TODO</a>
339     ¥ê¥¹¥È¤Ç¤¹</li>
340     <li>¼¡¤Î¤è¤¦¤Êµ¡Ç½¤ÏÌÜÏÀ¤Þ¤ì¤Æ¤¤¤Þ¤»¤ó¡£¤½¤ì¤Ï¡§
341         <ul>
342         <li>´û¤ËSQL´ë²è¤Ë½¾¤Ã¤¿´û¸¤Îµ¡Ç½À­¤È½ÅÊ£¤¹¤ë¤â¤Î</li>
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344         <li>°ÂÁ´À­¤¬³Î¤«¤á¤é¤ì¤Ê¤¤µ¡Ç½</li>
345         </ul>
346     </li>
347     <li>¿·¤·¤¤µ¡Ç½¤Ï
348     <a href="http://www.postgresql.org/docs/faqs.TODO.html">TODO</a>
349     ¥ê¥¹¥È¤Ë</li>²Ã¤¨¤é¤ì¤é¤ì¤Þ¤¹¡£
350     </ul>
351     
352     <p>²æ¡¹¤Ï¡¢PostgreSQL ¤Ë´Ø¤·¤Æ¡¢ÅŻҥ᡼¥ë¤ÇľÀÜÂбþ¤·¤Æ
353     <a href="http://www.postgresql.org/docs/faqs.TODO.html">TODO</a>
354     ¥ê¥¹¥È¤òºÇ¿·¤Ë¹¹¿·¤·¤Æ¤æ¤¯¤Û¤¦¤¬¤è¤ê¸ú²ÌŪ¤Ç¤¢¤ë¤³¤È¤òÃΤäƤ¤¤Þ¤¹
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359     <a href="http://www.postgresql.org/developer/sourcecode/">CVS</a>
360     ¤Î¥í¥°¥á¥Ã¥»¡¼¥¸¤ò¸«¤Æ¤¯¤À¤µ¤¤¡£¥ê¥ê¡¼¥¹¥Î¡¼¥È¤Ë¤µ¤¨¡¢¤³¤Î¥½¥Õ¥È¥¦¥§¥¢
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362
363
364 <h4 id="item1.10">1.10</a>) ¤É¤Î¤è¤¦¤Êʸ½ñ¤¬¤¢¤ê¤Þ¤¹¤«¡©</h4>
365
366     <p> ÇÛÉÕ¤ÎÃæ¤Ë¡¢¤¤¤¯¤Ä¤«¤Î¥Þ¥Ë¥å¥¢¥ë¤È¥ª¥ó¥é¥¤¥ó¡¦¥Þ¥Ë¥å¥¢¥ë(¥Þ¥Ë¥å
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368     <i>/doc</i>¥Ç¥£¥ì¥¯¥È¥ê¤ò¤´¤é¤ó¤¯¤À¤µ¤¤¡£¤Þ¤¿¡¢¥Þ¥Ë¥å¥¢¥ë¤Ï¡¢<A
369     href="http://www.PostgreSQL.org/docs/">
370     http://www.PostgreSQL.org/docs/</a>¤Ç¥ª¥ó¥é¥¤¥ó¤Ç¤â±ÜÍ÷¤Ç¤­¤Þ¤¹¡£
371     </p>
372
373
374     <p><small><pre>
375     [ÌõÃí:
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377                 <a href="http://www.postgresql.jp/document/pg803doc/">
378         http://www.postgresql.jp/document/pg803doc/</a>
379         ¥¤¥ó¥×¥ì¥¹¤«¤é¡¢
380         <a href="http://home.impress.co.jp/reference/2108.htm">
381         PostgreSQL¥ª¥Õ¥£¥·¥ã¥ë¥Þ¥Ë¥å¥¢¥ë</a>¤È¤·¤Æ½ÐÈǤµ¤ì¤Æ¤¤¤Þ¤¹¡£
382
383     ]
384     </pre></small></p>
385
386
387     <p>¥ª¥ó¥é¥¤¥ó¤Ç»²¾È¤Ç¤­¤ë PostgreSQL ¤ÎËܤâ2ºý¤¢¤ê¤Þ¤¹¡£<a href=
388     "http://www.PostgreSQL.org/docs/books/awbook.html">
389     http://www.PostgreSQL.org/docs/books/awbook.html</a>
390
391     <p><small><pre>
392     [ÌõÃí:
393         ¤³¤ÎËܤϡ¢JPUG<a href="http://www.PostgreSQL.jp/wg/psqltrans/">¡ÖPostgreSQL BookËÝÌõʬ²Ê²ñ¡×
394         </a>¤ÇËÝÌõ¤µ¤ì¡¢¥Ô¥¢¥½¥ó¤«¤é<a href="http://www.seshop.com/detail.asp?pid=2587">
395         ¡Ö¤Ï¤¸¤á¤Æ¤ÎPostgreSQL¡×</a>¤È¤·¤Æ½ÐÈǤµ¤ì¤Æ¤¤¤Þ¤¹¡£
396     ]
397     </pre></small></p>
398
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432
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434
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439
440     <p><i>The Practical SQL Handbook</i>, Bowman Judith S. et al.,
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444
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448     </li>
449     <li>
450     <a href="http://sqlcourse.com/">http://sqlcourse.com</a>
451     </li>
452
453     <li>
454     <a href="http://www.w3schools.com/sql/default.asp">http://www.w3schools.com/sql/default.asp</a>
455     </li>
456     <li><a href=
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461
462
463     <p><small><pre>
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494     <dl>
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534       ¤µ¤¤¡Ë¡£
535       <br /> 
536       </dd>
537
538       <dt> <b>²Á³Ê(Price)</b></dt>
539       <dd>
540       PostgreSQL¤ÎÍøÍѤϡ¢¾¦ÍѤǤâÈó¾¦ÍѤǤ⡢¤¹¤Ù¤Æ̵ÎÁ¤Ç¤¹¡£¾åµ­¤Ë¼¨¤·
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543       </dd>
544    </dl>
545    </p>
546
547 <hr />
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549 <h2 align="center">¥æ¡¼¥¶¡¦¥¯¥é¥¤¥¢¥ó¥È¤Î¼ÁÌä</h2>
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558     ¤¹¡£</p>
559
560     <p><small>PHP</small> ¤Î¤è¤¦¤Ê¤¤¤¯¤Ä¤«¤Î¥×¥í¥°¥é¥ß¥ó¥°¸À¸ì¤Ï¡¢
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562     Python, ¤½¤·¤Æ¡¢¤½¤Î¤Û¤«¤ÎÍøÍѲÄǽ¤Ê¸À¸ì¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ï¡¢
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565     ¤é¤ì¤Þ¤¹¡£
566     </p>
567
568
569 <h4 id="item2.2">2.2</a>) PostgreSQL ¤ò Web ¥Ú¡¼¥¸¤ÈÏ¢·È¤µ¤»¤ë¤Ë¤Ï¤É¤ó¤Ê¥Ä¡¼¥ë¤¬¤¢¤ê¤Þ¤¹¤«¡©</h4>
570
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573     <p> Web ¤Ø¤Î³ÈÄ¥¤Î¤¿¤á¤Ë¤Ï¡¢PHP(<a  href="http://www.php.net">http://www.php.net/</a>)
574      ¤¬Âî±Û¤·¤¿¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤È¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£</p>
575
576     <p><small><pre>
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580         ¤¢¤ë¤¤¤Ï¡¢×¢Àî Îव¤ó¤Î¥µ¥¤¥È
581                 <a href="http://www.geocities.jp/rui_hirokawa/php/">http://www.geocities.jp/rui_hirokawa/php/</a>
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583     ]
584     </pre></small></p>
585
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631     </ul><br/>
632     <br/>
633     </dd>
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635     <dt><b>¥µ¡¼¥Ð¹½À®</b></dt>
636
637     <dd><i>postgresql.conf</i>¤ÎÀßÄê¤Î¤¤¤¯¤Ä¤«¤ÏÀ­Ç½¤Ë±Æ¶Á¤·¤Þ¤¹¡£
638     ¾Ü¤·¤¯¤Ï¡¢<a href=
639     "http://www.postgresql.org/docs/current/static/runtime.html">
640     Administration Guide/Server Run-time Environment/Run-time
641     Configuration</a> ¤ÎÁ´·ï¥ê¥¹¥È¤ò¤´¤é¤ó¤¯¤À¤µ¤¤(<a
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646     http://www.varlena.com/varlena/GeneralBits/Tidbits/annotated_conf_e.html</a>
647     ¤ª¤è¤Ó¡¢ <a href="http://www.varlena.com/varlena/GeneralBits/Tidbits/perf.html">
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650     <br/>
651     <br/>
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654     <dt><b>¥Ï¡¼¥É¥¦¥§¥¢¤ÎÁªÄê</b></dt>
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658     http://www.powerpostgresql.com/PerfList/</a> ¤È¡¢ <a
659     href="http://momjian.us/main/writings/pgsql/hw_performance/index.html">
660     http://momjian.us/main/writings/pgsql/hw_performance/index.html</a>
661     (<a href="http://www.postgresql.jp/wg/psqltrans/hw_performance_j/index.html">JPUG¥µ¥¤¥È¤ÎÆüËܸìÈÇ</a>)
662     ¤Ë½Ò¤Ù¤é¤ì¤Æ¤¤¤Þ¤¹¡£
663     <br/>
664     <br/>
665     </dd>
666     </dl>
667
668
669     <p><small><pre>
670     [ÌõÃí:
671       JPUGÍý»öŤÎÊÒ²¬ÍµÀ¸»á¤Ë¤è¤ë¡¢¡Öº£¤¹¤°¤Ç¤­¤ëPostgreSQL¥Á¥å¡¼¥Ë¥ó¥°¡×
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673         http://www.thinkit.co.jp/free/tech/10/1/1.html
674     ]
675     </pre></small></p>
676
677
678 <h4 id="item3.4">3.4</a>) ¤É¤Î¤è¤¦¤Ê¥Ç¥Ð¥°µ¡Ç½¤¬»È¤¨¤Þ¤¹¤«¡©</h4>
679
680     <p>¥µ¡¼¥Ð¹½À®ÊÑ¿ô¤Ë¤Ï¿¤¯¤Î <code>log_*</code> ¤¬¤¢¤ê¡¢¥¯¥¨¥ê¤È¥×¥í
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682
683 <h4 id="item3.5">3.5</a>) Àܳ¤·¤è¤¦¤È¤¹¤ë¤È¤­¤Ë <i>'Sorry, too many clients'</i> ¤¬½Ð¤ë¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©</h4>
684
685     <p> ´ûÄê¤Ç¤ÎÀ©¸Â¤Ç¤¢¤ë 100 ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¥»¥Ã¥·¥ç¥ó¤Ë㤷¤Æ¤·¤Þ¤Ã¤Æ
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687     ¿ô¤òÁý¤ä¤¹É¬Íפ¬¤¢¤ê¤Þ¤¹¡£<i>postgresql.conf</i> ¤ÎÃæ¤Î
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690
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697     ¤¹¤ë¤À¤±¤Ç¤¹¡£</p>
698
699     <p>Á´¥æ¡¼¥¶¤Ï¤Ç¤­¤ë¤À¤±Á᤯ºÇ¿·¤Î¥Þ¥¤¥Ê¡¼¥ê¥ê¡¼¥¹¤Ë¥¢¥Ã¥×¥°¥ì¡¼¥É¤¹
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704
705     <p>¤·¤«¤·¡¢¥á¥¸¥ã¡¼¥ê¥ê¡¼¥¹¡Ê¤¿¤È¤¨¤Ð¡¢7.3 ¤«¤é 7.4 ¤Î¤è¤¦¤Ê¡Ë¤Ç¤Ï¡¢
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707     ¤Ê¤¤¤Þ¤¹¡£¤³¤ì¤é¤ÎÊѹ¹¤Ï¤¿¤¤¤Æ¤¤Ê£»¨¤Ç¡¢¤½¤Î¤¿¤á²æ¡¹¤Ï¥Ç¡¼¥¿¥Õ¥¡¥¤¥ë
708     ¤Î¤¿¤á¤Î¸åÊý¸ß´¹À­¤ò°Ý»ý¤¹¤ë¤³¤È¤¬¤Ç¤­¤Þ¤»¤ó¡£¥á¥¸¥ã¡¼¥¢¥Ã¥×¥°¥ì¡¼¥É
709     ¤Î¤¿¤á¤Ë¤Ï¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥À¥ó¥×/¥ê¥í¡¼¥É¤¬É¬ÍפǤ¹¡£</p>
710
711 <h4 id="item3.7">3.7</a>) ¥Ï¡¼¥É¥¦¥§¥¢¤Ë¤Ï¤É¤ó¤Ê¥³¥ó¥Ô¥å¡¼¥¿¤ò»È¤¨¤Ð¤è¤¤¤Ç¤¹¤«¡©</h4>
712
713     <p>PC¥Ï¡¼¥É¥¦¥§¥¢¤Ï¤Û¤È¤ó¤É¸ß´¹À­¤¬¤¢¤ê¤Þ¤¹¤Î¤Ç¡¢¤Û¤È¤ó¤É¤Î¿Í¤Ï¡¢¤¹
714     ¤Ù¤Æ¤ÎPC¥Ï¡¼¥É¥¦¥§¥¢¤¬Æ±¤¸ÉʼÁ¤À¤È»×¤¤¹þ¤à·¹¸þ¤¬¤¢¤ê¤Þ¤¹¡£¤·¤«¤·¡¢¤½
715     ¤ì¤Ï´Ö°ã¤¤¤Ç¤¹¡£ECC RAM¡¢SCSI¡¢¤ª¤è¤Ó¡¢¹âÉʼÁ¥Þ¥¶¡¼¥Ü¡¼¥É¤Ï¡¢°Â¤¤¥Ï¡¼
716     ¥É¥¦¥§¥¢¤ËÈæ¤Ù¤ë¤È¡¢¤è¤ê¿®ÍêÀ­¤¬¹â¤¯¡¢¤è¤êÀ­Ç½¤âÎɤ¤¤Î¤Ç¤¹¡£
717     PostgreSQL ¤Ï¤Û¤È¤ó¤É¤Î¥Ï¡¼¥É¥¦¥§¥¢¤Ç²ÔƯ¤·¤Þ¤¹¤¬¡¢¿®ÍêÀ­¤äÀ­Ç½¤¬½Å
718     Íפʾì¹ç¤Ï¡¢¥Ï¡¼¥É¥¦¥§¥¢¤Î¥ª¥×¥·¥ç¥ó¤ò¸¦µæ¤¹¤ë¤³¤È¤¬¸­ÌÀ¤Ç¤¹¡£¥á¡¼¥ê
719     ¥ó¥°¥ê¥¹¥È¤Ç¤â¥Ï¡¼¥É¥¦¥§¥¢¥ª¥×¥·¥ç¥ó¤È¥È¥ì¡¼¥É¥ª¥Õ¤Ë¤Ä¤¤¤ÆµÄÏÀ¤¹¤ë¤³
720     ¤È¤¬¤Ç¤­¤Þ¤¹¡£</p>
721
722 <hr />
723
724 <h2 align="center">Áàºî¾å¤Î¼ÁÌä</h2>
725
726 <h4 id="item4.1">4.1</a>) ºÇ½é¤Î¿ô¥í¥¦¤Î¤ß¤ò <small>SELECT</small>¤¹¤ë¤Ë¤Ï¤É¤¦¤·¤Þ¤¹¤«¡©¥é¥ó¥À¥à¤Ê¥í¥¦¡©
727 </h4>
728
729     <p>¤¿¤Ã¤¿¤Î¿ô¹Ô¤Î¥í¥¦¤ò¼è¤ê½Ð¤¹¤¿¤á¤Ë¡¢²¿¹ÔɬÍפ«¤¬¤ï¤«¤ì¤Ð¡¢
730     <small>SELECT</small> ¤Î¤È¤­¤Ë <small>LIMIT</small> ¤ò»È¤¤¤Þ¤¹¡£
731     <small>ORDER BY</small>¤Ë¥¤¥ó¥Ç¥Ã¥¯¥¹¤¬¥Þ¥Ã¥Á¤·¤¿¾ì¹ç¡¢¤Þ¤Ã¤¿¤¯¥¯¥¨
732     ¥ê¤¬¼Â¹Ô¤µ¤ì¤Ê¤¤¤³¤È¤â¤¢¤ê¤Þ¤¹¡£<small>SELECT</small> ¤Î¤È¤­¤Ë²¿¹Ô
733     ¤¬É¬Íפ«¤òÃΤé¤Ê¤±¤ì¤Ð¡¢¥«¡¼¥½¥ë¤ò»È¤¤<small>FETCH</small>¤·¤Þ¤¹¡£</p>
734
735    <p>¥é¥ó¥À¥à¥í¥¦¤ò<small>SELECT</small>¤¹¤ë¤Ë¤Ï¡¢¼¡¤Îʸ¤ò»È¤¤¤Þ¤¹¡§ 
736 <pre>
737     SELECT col
738     FROM tab
739     ORDER BY random()
740     LIMIT 1;
741 </pre>
742
743
744 <h4 id="item4.2">4.2</a>) ÄêµÁ¤µ¤ì¤¿¥Æ¡¼¥Ö¥ë¡¢¥¤¥ó¥Ç¥Ã¥¯¥¹¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¡¢¤ª¤è¤Ó¡¢¥æ¡¼¥¶¤ò¤É¤Î¤è¤¦¤Ë¤·¤Æ¸«¤Ä¤±½Ð¤·¤Þ¤¹¤«¡©<i>psql</i>¤Ç»È¤ï¤ì¤Æ¤¤¤ë¥¯¥¨¥ê¤òɽ¼¨¤¹¤ë¤Ë¤Ï¤É¤¦¤·¤Þ¤¹¤«¡©</h4>
745
746     <p><i>psql</i> ¤ÎÃæ¤Ç \dt¥³¥Þ¥ó¥É¤ò»È¤Ã¤Æ¥Æ¡¼¥Ö¥ë¤ò¸«¤ë¤³¤È¤¬¤Ç¤­
747     ¤Þ¤¹¡£psql¤ÎÃæ¤Ç \? ¤ò»È¤Ã¤Æ¡¢¥³¥Þ¥ó¥É¤ÎÁ´¥ê¥¹¥È¤òÄ´¤Ù¤ë¤³¤È¤¬¤Ç¤­¤Þ
748     ¤¹¡£°ìÊý¤Ç¡¢<i>psql</i> ¤Î¥½¡¼¥¹¥³¡¼¥É¤Ç¡¢¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¥³¥Þ¥ó¥É¤ò
749     ½ÐÎϤ¹¤ë <i>pgsql/src/bin/psql/describe.c</i> ¥Õ¥¡¥¤¥ë¤òÆɤळ¤È¤â¤Ç
750     ¤­¤Þ¤¹¡£¤½¤ÎÃæ¤Ë¤Ï¡¢ <small>SQL</small> ¥³¥Þ¥ó¥É¤òÀ¸À®¤¹¤ëÉôʬ¤â´Þ¤Þ
751     ¤ì¤Þ¤¹¡£¤Þ¤¿¡¢ <i>-E</i> ¥ª¥×¥·¥ç¥ó¤òÉÕ¤±¤Æ <i>psql</i> ¤ò³«»Ï¤¹¤ë¤È¡¢
752     ÆþÎϤµ¤ì¤¿¥³¥Þ¥ó¥É¤ò¼Â¹Ô¤¹¤ë¤¿¤á¤Î¥¯¥¨¥ê¤ò°õ»ú½ÐÎϤ¹¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£
753     PostgreSQL¤Ï <small>SQL</small> ½àµò¤Î INFORMATION SCHEMA ¥¤¥ó¥¿¡¼
754     ¥Õ¥§¡¼¥¹¤òÄ󶡤·¤Þ¤¹¤Î¤Ç¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤Ä¤¤¤Æ¤Î¾ðÊó¤òÌ䤤¹ç¤ï¤»¤ë¤³
755     ¤È¤â¤Ç¤­¤Þ¤¹¡£</p>
756
757     <p><i>pg_</i> ¤Ç»Ï¤Þ¤ë¥·¥¹¥Æ¥à¥Æ¡¼¥Ö¥ë¤Ç¤â¤³¤ì¤é¤òµ­½Ò¤¹¤ë¤³¤È¤¬¤Ç¤­
758     ¤Þ¤¹¡£</p>
759     
760     <p><i>psql -l</i>¤ò»È¤¦¤ÈÁ´¤Æ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò¥ê¥¹¥È¤·¤Þ¤¹¡£</p>
761
762     <p>¤½¤ì¤È¡¢<i>pgsql/src/tutorial/syscat.source</i> ¤ò»î¤·¤Æ¤ß¤Æ¤¯¤À
763     ¤µ¤¤¡£¤½¤³¤Ë¤Ï¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥·¥¹¥Æ¥à¥Æ¡¼¥Ö¥ë¤«¤é¾ðÊó¤òÆÀ¤ë¤¿¤á¤Ëɬ
764     Íפʠ<small>SELECT</small> Ê¸¤¬Âô»³¤¢¤ê¤Þ¤¹¡£</p>
765
766
767 <h4 id="item4.3">4.3</a>) ¥«¥é¥à¤Î¥Ç¡¼¥¿·¿¤òÊѹ¹¤¹¤ë¤Ë¤Ï¤É¤¦¤·¤Þ¤¹¤«¡©</h4>
768
769     <p>¥«¥é¥à¤Î¥Ç¡¼¥¿·¿¤ÎÊѹ¹¤Ï 8.0 °Ê¹ß¤Ç¤Ï¡¢
770     <small>ALTER TABLE ALTER COLUMN TYPE</small> ¤ò»È¤¦¤³¤È¤Ë¤è¤ê´Öñ¤Ë
771     ¤Ê¤ê¤Þ¤·¤¿¡£</p>
772
773     <p>¤½¤ì¤è¤êÁ°¤Î¥Ð¡¼¥¸¥ç¥ó¤Ç¤Ï¡¢°Ê²¼¤Î¤è¤¦¤Ë¤·¤Þ¤¹:</p>
774 <pre>
775     BEGIN;
776     ALTER TABLE tab ADD COLUMN new_col <i>new_data_type</i>;
777     UPDATE tab SET new_col = CAST(old_col AS <i>new_data_type</i>);
778     ALTER TABLE tab DROP COLUMN old_col;
779     COMMIT;
780 </pre>
781
782     <p>¤³¤ì¤ò¹Ô¤Ê¤Ã¤¿¤È¤­¤Ï¡¢Ëõ¾Ã¤µ¤ì¤¿¹Ô¤¬»È¤Ã¤Æ¤¤¤ë¥Ç¥£¥¹¥¯¶õ´Ö¤ò²ó¼ý
783     ¤¹¤ë¤¿¤á¤Ë<i>VACUUM FULL tab</i>¤ò¤·¤¿¤Û¤¦¤¬Îɤ¤¤«¤â¤·¤ì¤Þ¤»¤ó¡£</p>
784
785 <h4 id="item4.4">4.4</a>) ¥í¥¦¡¢¥Æ¡¼¥Ö¥ë¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¤ÎºÇÂ祵¥¤¥º¤Ï¡©</h4>
786
787     <p>À©¸Â¤Ï°Ê²¼¤Î¤È¤ª¤ê¤Ç¤¹:</p>
788 <blockquote>
789 <table>
790 <tr><td>¥Ç¡¼¥¿¥Ù¡¼¥¹¤ÎºÇÂ祵¥¤¥º?</td><td>À©¸Â̵¤· (32 TB ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤â¸ºß¤·¤Þ¤¹)</td></tr>
791 <tr><td>¥Æ¡¼¥Ö¥ë¤ÎºÇÂ祵¥¤¥º?</td><td>32 TB</td></tr>
792 <tr><td>¥í¥¦¤ÎºÇÂ祵¥¤¥º?</td><td>400 GB</td></tr>
793 <tr><td>¥Õ¥£¡¼¥ë¥É¤ÎºÇÂ祵¥¤¥º?</td><td>1 GB</td></tr>
794 <tr><td>¥Æ¡¼¥Ö¥ëÆâ¤Ç¤ÎºÇÂç¥í¥¦¿ô?</td><td>À©¸Â̵¤·</td></tr>
795 <tr><td>¥Æ¡¼¥Ö¥ëÆâ¤Ç¤ÎºÇÂ祫¥é¥à¿ô?</td><td>¥«¥é¥à¤Î·¿¤Ë¤è¤Ã¤Æ 250-1600</td></tr>
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797 </table>
798 </blockquote>
799
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802     ¤Û¤«Â礭¤Ê»þ¤ËÀú¤ê¤ò¼õ¤±¤Þ¤¹¡£</p>
803
804     <p> ºÇÂç¥Æ¡¼¥Ö¥ë¥µ¥¤¥º¤Î32TB¤Ï¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹¥Æ¥à¤Ë¤è¤ëµðÂç¥Õ¥¡
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807     </p>
808
809     <p> ¥Ç¥Õ¥©¥ë¥È¤Î¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤ò32k¤ËÁý²Ã¤¹¤ë¤³¤È¤Ç¡¢ºÇÂç¥Æ¡¼¥Ö¥ë¥µ¥¤¥º
810     ¤È¹Ô¥µ¥¤¥º¤ÈºÇÂ祫¥é¥à¿ô¤È¤ò4Çܤˤ¹¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£¤Þ¤¿¡¢ºÇÂç¥Æ¡¼¥Ö¥ë
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812
813     <p>¤Ò¤È¤Ä¤ÎÀ©¸Â¤Ï¡¢Ìó2,000ʸ»ú°Ê¾å¤ÎŤµ¤Î¥«¥é¥à¤Ë¥¤¥ó¥Ç¥Ã¥¯¥¹¤òÉÕ
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817     Ã±¸ì¤ò¸¡º÷¤¹¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£</p>
818
819 <h4 id="item4.5">4.5</a>) °ìÈÌŪ¤Ê¥Æ¥­¥¹¥È¥Õ¥¡¥¤¥ë¤Î¥Ç¡¼¥¿¤òÊݸ¤¹¤ë¤Ë¤Ï¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥Ç¥£¥¹¥¯ÍÆÎ̤ϤɤΤ¯¤é¤¤É¬ÍפǤ¹¡©</h4>
820
821     <p>ÉáÄ̤Υƥ­¥¹¥È¥Õ¥¡¥¤¥ë¤ò PostgreSQL ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÊݸ¤¹¤ë¤Ë¤Ï¡¢
822     ºÇÂç¤ÇÌó5ÇܤΥǥ£¥¹¥¯ÍÆÎ̤òɬÍפȤ·¤Þ¤¹¡£</p>
823
824
825     <p> ÎãÂê¤È¤·¤Æ¡¢³Æ¹Ô¤ËÀ°¿ô¤È¥Æ¥­¥¹¥Èµ­½Ò¤ò»ý¤Ä 100,000¹Ô¤Î¥Õ¥¡¥¤¥ë¤ò
826     ¹Í¤¨¤Æ¤ß¤Þ¤·¤ç¤¦¡£¥Æ¥­¥¹¥È¤Îʸ»úÎó¤ÎÊ¿¶ÑŤµ¤ò20¥Ð¥¤¥È¤È²¾Äꤹ¤ë¤È¡¢
827     ¥Õ¥é¥Ã¥È¥Õ¥¡¥¤¥ë¤ÎÂ礭¤µ¤ÏÌó2.8MB ¤Ç¤¹¡£¤³¤Î¥Ç¡¼¥¿¤ò´Þ¤à PostgreSQL
828     ¥Ç¡¼¥¿¥Ù¡¼¥¹¥Õ¥¡¥¤¥ë¤ÎÂ礭¤µ¤Ï¼¡¤Î¤è¤¦¤ËÌó5.6MB¤È¸«ÀѤâ¤ë¤³¤È¤¬¤Ç¤­
829     ¤Þ¤¹¡§ 
830
831 <pre>
832     28 bytes: ³Æ¥í¥¦¤Î¥Ø¥Ã¥À(³µ»»)
833     24 bytes: À°¿ô(int)¥Õ¥£¡¼¥ë¥É¤È¥Æ¥­¥¹¥È(text)¥Õ¥£¡¼¥ë¥É
834    + 4 bytes: ¥Ú¡¼¥¸¾å¤Î¥¿¥Ã¥×¥ë¤Ø¤Î¥Ý¥¤¥ó¥¿
835    ----------------------------------------
836     56 bytes per row
837
838    PostgreSQL ¤Î¥Ç¡¼¥¿¥Ú¡¼¥¸¥µ¥¤¥º¤Ï 8192¥Ð¥¤¥È(8KB)¤Ê¤Î¤Ç:
839
840    8192 bytes per page
841    -------------------   =  146 rows per database page (ÀÚ¤ê¼Î¤Æ)
842      56 bytes per row
843
844    100000 data rows
845    --------------------  =  685 database pages (ÀÚ¤ê¾å¤²)
846       146 rows per page
847  
848   685 database pages * 8192 bytes per page  =  5,611,520 bytes (5.6 MB)
849 </pre>
850
851     <p>¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ï¡¢¤³¤ì¤Û¤É¤Î¥ª¡¼¥Ð¥Ø¥Ã¥É¤ÏÍ׵ᤷ¤Þ¤»¤ó¤¬¡¢¥¤¥ó¥Ç¥Ã
852    ¥¯¥¹ÉÕ¤±¤µ¤ì¤ë¥Ç¡¼¥¿¤ò´Þ¤à°Ê¾å¡¢¤½¤ì¤Ê¤ê¤ËÂ礭¤¯¤Ê¤ê¤Þ¤¹¡£ </p>
853     <p><small>NULL</small>¤Ï¥Ó¥Ã¥È¥Þ¥Ã¥×¤È¤·¤ÆÊݸ¤µ¤ì¤Æ¤¤¤Æ¡¢¤½¤ì¤é¤¬¤ï
854     ¤º¤«¤Ë¥¹¥Ú¡¼¥¹¤ò»È¤¤¤Þ¤¹¡£</p>
855
856
857 <h4 id="item4.6">4.6</a>) ¥¯¥¨¥ê¤¬ÃÙ¤¤¤Î¤Ï¤Ê¤¼¤Ç¤·¤ç¤¦¡© ¤Ê¤¼¡¢¥¤¥ó¥Ç¥Ã¥¯¥¹¤¬»È¤ï¤ì¤Ê¤¤¤Î¤Ç¤·¤ç¤¦¤«¡©</h4>
858
859     <p>¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ï¡¢¤¹¤Ù¤Æ¤Î¥¯¥¨¥ê¤Ç»È¤ï¤ì¤ë¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£¥Æ¡¼
860     ¥Ö¥ë¤¬ºÇ¾®¥µ¥¤¥º¤è¤êÂ礭¤¯¡¢¥¯¥¨¥ê¤Ç¤½¤Î¤ï¤º¤«¤Ê¥Ñ¡¼¥»¥ó¥Æ¡¼¥¸¤Î¥í¥¦
861     ¤òÁªÂò¤¹¤ë»þ¤À¤±¡¢¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ï»È¤ï¤ì¤Þ¤¹¡£¤³¤ì¤Ï¥¤¥ó¥Ç¥Ã¥¯¥¹¥¹¥­¥ã
862     ¥ó¤Ë¤è¤êµ¯¤³¤µ¤ì¤ë¥é¥ó¥À¥à¤Ê¥Ç¥£¥¹¥¯¥¢¥¯¥»¥¹¤Ï¡¢¥Æ¡¼¥Ö¥ë¤ò¥¹¥È¥ì¡¼¥È
863     ¤ËÆɤà½ç¼¡Áöºº¤è¤ê¤âÃÙ¤¯¤Ê¤ë¤³¤È¤¬¤¢¤ë¤«¤é¤Ç¤¹¡£ </p>
864
865     <p>¥¤¥ó¥Ç¥Ã¥¯¥¹¤ò»È¤¦¤«¤ò·èÄꤹ¤ë¤¿¤á¤Ë¡¢PostgreSQL ¤Ï¥Æ¡¼¥Ö¥ë¤Ë¤Ä¤¤
866     ¤Æ¤ÎÅý·×¾ðÊó¤ò»ý¤¿¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£¤³¤ÎÅý·×¾ðÊó¤Ï¡¢
867     <small>VACUUM ANALYZE</small>¤Þ¤¿¤Ï¡¢Ã±¤Ë <small>ANALYZE</small> ¤ò»È¤Ã
868     ¤Æ¼ý½¸¤¹¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£Åý·×¾ðÊó¤ò»È¤Ã¤Æ¥ª¥×¥Æ¥£¥Þ¥¤¥¶¤Ï¥Æ¡¼¥Ö¥ë¤Î
869     Ãæ¤Ë¤¢¤ë¥í¥¦¿ô¤òÃΤꡢ¥¤¥ó¥Ç¥Ã¥¯¥¹¤ò»È¤¦¤Ù¤­¤«¤Î·èÄê¤ò¤è¤êÀµ¤·¤¯¤Ç¤­
870     ¤Þ¤¹¡£Åý·×¾ðÊó¤ÏºÇŬ¤Ê·ë¹ç½ç¤ä·ë¹çÊýË¡¤ò·è¤á¤ë¾å¤Ç¤âµ®½Å¤Ê¤â¤Î¤â¤¢¤ê
871     ¤Þ¤¹¡£Åý·×¾ðÊó¤Î¼ý½¸¤Ï¡¢¥Æ¡¼¥Ö¥ë¤ÎÆâÍƤ¬ÊѤï¤ëËè¤Ë·«ÊÖ¤·¤Ê¤µ¤ì¤ë¤Ù
872     ¤­¤Ç¤¹¡£</p>
873
874     <p> ¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ï¡¢Ä̾ï <small>ORDER BY</small> ¤ä·ë¹ç¤ò¹Ô¤Ê¤¦¤¿¤á
875     ¤Ë¤Ï»È¤ï¤ì¤Þ¤»¤ó¡£½ç¼¡¥¹¥­¥ã¥ó¤Ë³¤¯ÌÀ¼¨Åª¥½¡¼¥È¤Ï¡¢µðÂç¤Ê¥Æ¡¼¥Ö¥ë¤Î
876     ¥¤¥ó¥Ç¥Ã¥¯¥¹¥¹¥­¥ã¥ó¤è¤ê¤âÉáÄ̤Ϲ⮤Ǥ¹¡£</p>
877
878     ¤·¤«¤·¡¢<small>ORDER BY</small>¤ÈÁȤ߹ç¤ï¤µ¤ì¤¿<small>LIMIT</small>
879     ¤Ï¡¢¥Æ¡¼¥Ö¥ë¤Î¾®¤µ¤ÊÉôʬ¤òÊÖ¤¹¤¿¤á¤Ë¤¿¤Ó¤¿¤Ó¥¤¥ó¥Ç¥Ã¥¯¥¹¤ò»È¤¦¤Ç¤·¤ç
880     ¤¦¡£
881
882     <p>¤â¤·¡¢¥ª¥×¥Æ¥£¥Þ¥¤¥¶¤¬´Ö°ã¤Ã¤Æ¥·¡¼¥±¥ó¥·¥ã¥ë¥¹¥­¥ã¥ó¤òÁªÂò¤·¤¿¤³
883     ¤È¤Ëµ¿¤¤¤¬¤Ê¤±¤ì¤Ð¡¢<CODE>SET enable_seqscan TO 'off'</CODE>¤ËÀßÄꤷ
884     ¤Æ¡¢¥¯¥¨¥ê¤ò¤â¤¦°ìÅټ¹Ԥ·¡¢¥¤¥ó¥Ç¥Ã¥¯¥¹¥¹¥­¥ã¥ó¤¬¤Þ¤Á¤¬¤¤¤Ê¤¯Â®¤¯¤Ê¤Ã
885     ¤Æ¤¤¤ë¤«¤É¤¦¤«¤ò¤ß¤Æ¤¯¤À¤µ¤¤¡£</p> 
886
887     <p> <small>LIKE</small> ¤¢¤ë¤¤¤Ï <i>~</i> ¤Î¤è¤¦¤Ê¥ï¥¤¥ë¥É¥«¡¼¥É±é»»
888     »Ò¤ÏÆÃÊ̤ʴĶ­¤Ç¤·¤«»È¤¨¤Þ¤»¤ó¡§
889     <ul>
890     <li>¸¡º÷ʸ»úÎó¤¬Ê¸»úÎó¤ÎºÇ½é¤Ë¤­¤­¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡§</li>
891         <ul>
892          <li><small>LIKE</small> ¥Ñ¥¿¡¼¥ó¤¬<i>%</i>¤Ç»Ï¤Þ¤é¤Ê¤¤</li>
893          <li><i>~</i> (Àµµ¬É½¸½) ¥Ñ¥¿¡¼¥ó¤Ï<i>^</i>¤Ç»Ï¤Þ¤é¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤</li>
894         </ul>
895     <li>¸¡º÷ʸ»úÎó¤òʸ»ú¥¯¥é¥¹¤«¤é»Ï¤á¤ë¤³¤È¤Ï¤Ç¤­¤Þ¤»¤ó¡£¤¿¤È¤¨¤Ð¡¢[a-e]¡£</li>
896     <li><small>ILIKE</small> ¤ä <i>~*</i> ¤Î¤è¤¦¤ÊÂçʸ»ú¤È¾®Ê¸»ú¤ò¶èÊ̤·
897         ¤Ê¤¤¸¡º÷¤Ï»È¤¨¤Þ¤»¤ó¡£¤½¤Î¤«¤ï¤ê¡¢¤³¤ÎFAQ¤Î<a
898         href="#item4.8">4.8</a>Àá¤ÇÀâÌÀ¤¹¤ë¼°¥¤¥ó¥Ç¥Ã¥¯¥¹¤¬»È¤¨¤Þ¤¹¡£
899         </li> 
900     <li><i>initdb</i> ¤Ë¤ª¤¤¤Æ¤Ï¡¢¥Ç¥Õ¥©¥ë¥È¤Ç<i>C</i>¥í¥±¡¼¥ë¤¬»È¤ï¤ì¤Ê
901         ¤¯¤Æ¤Ï¤Ê¤ê¤Þ¤»¤ó¡£¤½¤ÎÍýͳ¤Ï¡¢C¥í¥±¡¼¥ë°Ê³°¤Ç¤Ï¼¡¤ËÂ礭¤Êʸ»ú¤ò
902         ÃΤ뤳¤È¤¬¤Ç¤­¤Ê¤¤¤«¤é¤Ç¤¹¡£¤³¤Î¤è¤¦¤Ê¾ì¹ç¡¢<pre>LIKE</pre>¥¤¥ó
903         ¥Ç¥¯¥·¥ó¥°¤Ë¤À¤±Æ¯¤¯¤è¤¦¤Ê¡¢ÆÃÊ̤Ê<pre>text_pattern_ops</pre>¥¤
904         ¥ó¥Ç¥Ã¥¯¥¹¤òºîÀ®¤¹¤ë¤³¤È¤â¤Ç¤­¤Þ¤¹¡£
905         </li>
906     </ul>
907     <p>
908
909     <p>8.0¤è¤êÁ°¤Î¥ê¥ê¡¼¥¹¤Ç¤Ï¡¢¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ï¡¢¥Ç¡¼¥¿·¿¤¬¤Á¤ç¤¦¤É¥¤¥ó¥Ç¥Ã
910     ¥¯¥¹¤Î¥«¥é¥à¤Î·¿¤È°ìÃפ·¤Ê¤±¤ì¤Ð¡¢»È¤¨¤Ê¤¤¤³¤È¤¬¤·¤Ð¤·¤Ð¤¢¤ê¤Þ¤·¤¿¡£
911     ¤ª¤½¤é¤¯¡¢int2, int8, ¤ª¤è¤Ó numeric Åù¤Î¥«¥é¥à¤Î¥¤¥ó¥Ç¥Ã¥¯¥¹¤¬¤½¤¦
912     ¤Ç¤¹¡£</p> 
913
914
915 <h4 id="ITEM4.7">4.7</a>) Ì䤤¹ç¤ï¤»¥ª¥×¥Æ¥£¥Þ¥¤¥¶¤¬¤É¤Î¤è¤¦¤ËÌ䤤¹ç¤ï¤»¤òɾ²Á¤¹¤ë¤Î¤«¤ò¸«¤ë¤Ë¤Ï¤É¤¦¤·¤Þ¤¹¤«¡©</h4>
916
917     <p>¥ª¥ó¥é¥¤¥ó¥Þ¥Ë¥å¥¢¥ë¤Ç <small>EXPLAIN</small> ¤ò¸«¤Æ¤¯¤À¤µ¤¤¡£</p>
918
919 <h4 id="item4.8">4.8</a>) Àµµ¬É½¸½¤Ç¤Î¸¡º÷¤äÂçʸ»ú¤È¾®Ê¸»ú¤È¤ò¶èÊ̤·¤Ê¤¤Àµµ¬É½¸½¸¡º÷¤Ï¤É¤Î¤è¤¦¤Ë¼Â¸½¤·¤Þ¤¹¤«¡©Âçʸ»ú¤È¾®Ê¸»ú¤È¤ò¶èÊ̤·¤Ê¤¤¸¡º÷¤Î¤¿¤á¤Î¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ï¤É¤Î¤è¤¦¤Ë»È¤¤¤Þ¤¹¤«¡©</h4>
920
921     <p><i>~</i>±é»»»Ò¤ÏÀµµ¬É½¸½¾È¹ç¤ò¹Ô¤Ê¤¤¡¢<i>~*</i> ¤ÏÂçʸ»ú¤È¾®Ê¸»ú
922     ¤ò¶èÊ̤·¤Ê¤¤(case-insensitive)Àµµ¬É½¸½¾È¹ç¤ò¹Ô¤¤¤Þ¤¹¡£ Âçʸ»ú¤È¾®Ê¸
923     »ú¤ò¶èÊ̤·¤Ê¤¤ <small>LIKE</small> ±é»»»Ò¤ò <small>ILIKE</small> ¤È
924     ¤¤¤¤¤Þ¤¹¡£</p>
925
926     <p>Âçʸ»ú¤È¾®Ê¸»ú¤ò¶èÊ̤·¤Ê¤¤ÅùÃÍÈæ³Ó¤Ï¼¡¤Î¤è¤¦¤Ëɽ¸½¤Ç¤­¤ë¡§
927 <pre>
928     SELECT *
929     FROM tab
930     WHERE lower(col) = 'abc';
931 </pre>
932
933     <p>ɸ½à¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ç¤Ï»È¤ï¤ì¤º¡¢¤·¤«¤·¤Ê¤¬¤é¡¢¤â¤·¡¢¼°¥¤¥ó¥Ç¥Ã¥¯¥¹
934     ¤òºî¤Ã¤¿¤Ê¤é¤½¤ì¤¬»È¤ï¤ì¤ë¤Ç¤·¤ç¤¦¡£</p>
935
936 <pre>
937     CREATE INDEX tabindex ON tab (lower(col));
938 </pre>
939
940     <p>¾åµ­¤Î¥¤¥ó¥Ç¥Ã¥¯¥¹¤¬<small>UNIQUE</small>¤ÇºîÀ®¤µ¤ì¤¿¾ì¹ç¡¢¥«¥é¥à
941     ¤ÏÂçʸ»ú¤È¾®Ê¸»ú¤ò³ÊǼ¤Ç¤­¤Þ¤¹¤¬¡¢¤½¤Î°ã¤¤¤¬Ê¸»ú¥±¡¼¥¹¤À¤±¤Ç¤¢¤Ã¤Æ¤â
942     Æ±°ì¤Ë¤Ï¤Ê¤ê¤Þ¤»¤ó¡£¤¢¤¨¤ÆÆÃÄê¤Îʸ»ú¥±¡¼¥¹¤ò¥«¥é¥à¤Ë³ÊǼ¤¹¤ë¤Ë¤Ï
943     <small>CHECK</small>À©Ì󤫡¢¥È¥ê¥¬¡¼¤ò»È¤Ã¤Æ¤¯¤À¤µ¤¤¡£</p>
944
945
946
947 <h4 id="item4.9">4.9</a>) ¥¯¥¨¥ê¤ÎÃæ¤Ç¡¢¥Õ¥£¡¼¥ë¥É¤¬<small>NULL</small> ¤Ç¤¢¤ë¤³¤È¤ò¸¡½Ð¤¹¤ë¤Ë¤Ï¤É¤¦¤·¤Þ¤¹¤«¡© ¥Õ¥£¡¼¥ë¥É¤¬<small>NULL</small>¤«¤É¤¦¤«¤Ç¤É¤Î¤è¤¦¤Ë¥½¡¼¥È¤¬¤Ç¤­¤Þ¤¹¤«¡©</h4>
948
949     <p>°Ê²¼¤Î¤è¤¦¤Ë¡¢<small>IS NULL</small> ¤È <small>IS NOT
950     NULL</small>¤Ç¡¢¤½¤Î¥«¥é¥à¤ò¥Æ¥¹¥È¤·¤Æ¤ß¤Þ¤¹¡§</p> 
951
952 <pre>
953    SELECT *
954    FROM tab
955    WHERE col IS NULL;
956 </pre>
957
958    <p><small>NULL</small>¾õÂ֤ǥ½¡¼¥È¤¹¤ë¤Ë¤Ï¡¢<small>IS NULL</small> ¤È
959    <small>IS NOT NULL</small> ¤Î½¤¾þ»Ò¤ò <small>ORDER BY</small> ¶ç¤ÎÃæ
960    ¤Ç»È¤Ã¤Æ¤ß¤Þ¤¹¡£<i>true</i> ¤Î¤â¤Î¤Ï <i>false</i> ¤Î¤â¤Î¤è¤ê¤â¹â¤¤ÃÍ
961    ¤È¤·¤Æʤ٤é¤ì¤Þ¤¹¤Î¤Ç¡¢¼¡¤ÎÎã¤Ç¤Ï NULL ¤Îµ­ºÜ¤¬·ë²Ì¥ê¥¹¥È¤Î¾åÉô¤ËÃÖ
962    ¤«¤ì¤Þ¤¹¡£
963
964 <pre>
965    SELECT *
966    FROM tab
967    ORDER BY (col IS NOT NULL)
968 </pre>
969
970
971 <h4 id="item4.10">4.10</a>) ¤¤¤í¤¤¤í¤Êʸ»ú·¿¤Î¤½¤ì¤¾¤ì¤Î°ã¤¤¤Ï²¿¤Ç¤¹¤«¡©
972 </h4>
973
974 <blockquote>
975 <table>
976 <tr><th>·¿</th><th>ÆâÉô̾</th><th>È÷¹Í</th></tr>
977 <tr><td>VARCHAR(n)</td><td>varchar</td><td>ºÇÂçĹ¤Î¥µ¥¤¥º¤ò»ØÄꤹ¤ë¡¢µÍ¤áʪ̵¤·</td></tr>
978 <tr><td>CHAR(n)</td><td>bpchar</td><td>»ØÄꤵ¤ì¤¿¸ÇÄêĹ¤È¤Ê¤ë¤è¤¦¤Ë¶õÇò¤¬µÍ¤á¤é¤ì¤ë</td></tr>
979 <tr><td>TEXT</td><td>text</td><td>Ťµ¤ËÆÃÊ̤ʾå¸Â¤Ï̵¤·</td></tr>
980 <tr><td>BYTEA</td><td>bytea</td><td>²ÄÊÑĹ¤Î¥Ð¥¤¥ÈÇÛÎó(null-byte safe)</td></tr>
981 <tr><td>"char"</td><td>char</td><td>1ʸ»ú</td></tr>
982 </table>
983 </blockquote>
984
985     <p> ÆâÉô̾¤Ë¤ªÌܤˤ«¤«¤ë¤Î¤Ï¡¢¥·¥¹¥Æ¥à¡¦¥«¥¿¥í¥°¤òÄ´¤Ù¤ë¤È¤­¤ä¡¢¥¨¥é¡¼
986     ¥á¥Ã¥»¡¼¥¸¤ò¼õ¤±¼è¤ë¤È¤­¤Ç¤¹¡£</p>
987
988     <p> ¾åµ­¤Î·¿¤Î¤¦¤ÁºÇ½é¤Î£´¤Ä¤Î·¿¤Ï "varlena" ·¿¤Ç¤¹(¤¹¤Ê¤ï¤Á¡¢¥Ç¥£¥¹
989     ¥¯¤ÎºÇ½é¤Î£´¥Ð¥¤¥È¤¬¥Ç¡¼¥¿Ä¹¤Ç¡¢¤½¤ì¤Î¸å¤Ë¼ÂºÝ¤Î¥Ç¡¼¥¿¤¬Â³¤­¤Þ¤¹)¡£
990     ¤³¤Î¤è¤¦¤Ë¼ÂºÝ¤Î¶õ´Ö¤ÏÀë¸À¤µ¤ì¤¿Â礭¤µ¤è¤ê¤â¾¯¤·Â礭¤¯¤Ê¤ê¤Þ¤¹¡£¤·¤«
991     ¤·¡¢Ä¹¤¤Ãͤϰµ½Ì¤µ¤ì¤ë¤Î¤Ç¡¢¥Ç¥£¥¹¥¯¾å¤Î¶õ´Ö¤Ï»×¤Ã¤¿¤è¤ê¤â¾®¤µ¤¯¤Ê¤ê¤Þ¤¹¡£</p>
992
993     <p><small>VARCHAR(n)</small> ¤Ï²ÄÊÑŤÎʸ»úÎó¤òÊݸ¤¹¤ë¤Î¤ËºÇŬ¤Ç¤¹
994     ¤¬¡¢Êݸ¤Ç¤­¤ëʸ»úÎó¤ÎŤµ¤ËÀ©¸Â¤¬¤¢¤ê¤Þ¤¹¡£<small>TEXT</small> ¤ÏĹ
995     ¤µ¤ËÀ©¸Â¤Î̵¤¤Ê¸»úÎó¤ÎÊݸ¤Î¤¿¤á¤Î¤â¤Î¤Ç¡¢ºÇÂç¤Ç 1¥®¥¬¥Ð¥¤¥È¤Ç¤¹¡£
996     <small>CHAR(n)</small>¤Ï¡¢<small>VARCHAR(n)</small>¤¬Í¿¤¨¤é¤ì¤¿Ê¸»ú
997     ¤À¤±¤òÊݸ¤¹¤ë¤Î¤ËÂФ·¡¢¥Ö¥é¥ó¥¯¤òµÍ¤á¹þ¤ó¤Ç¤¤¤Ä¤âƱ¤¸Ä¹¤µ¤Çʸ»úÎó¤ò
998     Êݸ¤¹¤ë¤Î¤ËºÇŬ¤Ç¤¹¡£<small>BYTEA</small>¤Ï¡¢ÉôʬŪ¤Ë
999     <small>NULL</small> ¤Î¥Ð¥¤¥È¤ò´Þ¤à¥Ð¥¤¥Ê¥ê¥Ç¡¼¥¿¤òÊݸ¤¹¤ë¤¿¤á¤Î¤â¤Î
1000     ¤Ç¤¹¡£¤³¤ì¤é¤Î¥¿¥¤¥×¤ÏƱ¤¸¤¯¤é¤¤¤ÎÀ­Ç½ÆÃÀ­¤ò¤â¤Á¤Þ¤¹¡£</p>
1001
1002
1003 <h4 id="item4.11.1">4.11.1</a>) ÄÌÈÖ(serial)¡¿¼«Æ°Áýʬ¥Õ¥£¡¼¥ë¥É¤Ï¤É¤Î¤è¤¦¤Ë¤Ä¤¯¤ê¤Þ¤¹¤«¡©</h4>
1004
1005     <p> PostgreSQL ¤Ï <small>SERIAL</small> ¥Ç¡¼¥¿·¿¤ò¥µ¥Ý¡¼¥È¤·¤Þ¤¹¡£¥«
1006     ¥é¥à¾å¤Ë¥·¡¼¥±¥ó¥¹¤ò¼«Æ°ºîÀ®¤·¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡¢</p>
1007
1008 <pre>
1009     CREATE TABLE person ( 
1010         id   SERIAL, 
1011         name TEXT 
1012     );
1013 </pre>
1014     ¤Ï¼«Æ°Åª¤Ë¼¡¤Î¤è¤¦¤ËËÝÌõ¤µ¤ì¤Þ¤¹:
1015 <pre>
1016     CREATE SEQUENCE person_id_seq;
1017     CREATE TABLE person ( 
1018         id   INT4 NOT NULL DEFAULT nextval('person_id_seq'),
1019         name TEXT
1020     );
1021 </pre>
1022
1023     <p><small><pre>
1024     [ÌõÃí¡§
1025         CREATE UNIQUE INDEX person_id_key ON person ( id );
1026         ¤Ï¡¢ 7.3 °Ê¹ß¤Ï¼«Æ°Åª¤Ë¤Ï¹Ô¤Ê¤ï¤ì¤Ê¤¯¤Ê¤ê¤Þ¤·¤¿¡£
1027     ]
1028     </small></pre></p>
1029
1030     ÄÌÈ֤ˤĤ¤¤Æ¤Î¤â¤Ã¤È¾Ü¤·¤¤¾ðÊó¤Ï¡¢¥ª¥ó¥é¥¤¥ó¥Þ¥Ë¥å¥¢¥ë¤Ç
1031     <i>create_sequence</i> ¤ò¤´¤é¤ó¤¯¤À¤µ¤¤¡£
1032
1033
1034 <h4 id="item4.11.2">4.11.2</a>) <small>SERIAL</small>¥Ç¡¼¥¿·¿¤ËÁÞÆþ¤µ¤ì¤ëÃͤϡ¢¤É¤¦¤¹¤ì¤ÐÆÀ¤é¤ì¤Þ¤¹¤«¡©</h4>
1035
1036     <p>¤Ò¤È¤Ä¤ÎÊýË¡¤Ï¡¢<i>nextval()</i> ´Ø¿ô¤ò»È¤Ã¤Æ¤½¤ÎÃͤòÁÞÆþ¤¹¤ë<i>
1037     Á°(before)¤Ë</i> SEQUENCE ¥ª¥Ö¥¸¥§¥¯¥È¤«¤é¼¡¤Î <small>SERIAL</small>
1038     Ãͤò¼è¤ê½Ð¤·¡¢¤½¤ì¤«¤é¼ÂºÝ¤ËÁÞÆþ¤ò¤¹¤ë¤³¤È¤Ç¤¹¡£<a
1039     href="#item4.11.1">4.11.1</a> ¤Î¥Æ¡¼¥Ö¥ë¤ÎÎã¤ò»È¤¦¤È¤¹¤ë¤È¡¢µ¿»÷¸À¸ì¤Ç¤Ï
1040     ¤³¤Î¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£</p> 
1041
1042 <pre>
1043     new_id = execute("SELECT nextval('person_id_seq')");
1044     execute("INSERT INTO person (id, name) VALUES (new_id, 'Blaise Pascal')");
1045 </pre>
1046
1047     ¤½¤¦¤·¤Æ¡¢<tt>new_id</tt> ¤ËÊݸ¤·¤¿¿·¤·¤¤Ãͤò¾¤Î¥¯¥¨¥ê(¤¿¤È¤¨¤Ð¡¢
1048     <tt>person</tt> ¥Æ¡¼¥Ö¥ë¤ËÂФ¹¤ë³°Éô¥­¡¼(foreign key)¤Î¤è¤¦¤Ë)»È¤¦¤È
1049     ¤è¤¤¤Ç¤·¤ç¤¦¡£¼«Æ°Åª¤Ëºî¤é¤ì¤¿<small>SEQUENCE</small>¥ª¥Ö¥¸¥§¥¯¥È¤Î
1050     Ì¾Á°¤Ï¡¢&lt;<i>table</i>&gt;_&lt;<i>serialcolumn</i>&gt;_<i>seq</i>
1051     ¤Î¤è¤¦¤Ë¤Ê¤ê¡¢¤³¤Î¤¦¤Á¡¢<i>table</i> ¤È <i>serialcolumn</i> ¤Ï¤½¤ì¤¾
1052     ¤ì¥Æ¡¼¥Ö¥ë¤Î̾Á°¤È<small>SERIAL</small>¥«¥é¥à¤Î̾Á°¤Ç¤¹¡£ 
1053
1054     <p>¤¢¤ë¤¤¤Ï¡¢Í¿¤¨¤é¤ì¤¿<small>SERIAL</small>Ãͤò¡¢¤½¤ì¤¬´ûÄêÃͤȤ·¤Æ
1055     ÁÞÆþ¤µ¤ì¤¿<i>¸å¤Ç(after)</i>¡¢ <i>currval()</i> ´Ø¿ô¤ò»È¤Ã¤Æ¼è¤ê½Ð¤¹
1056     ¤³¤È¤â¤Ç¤­¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡¢ </p>
1057
1058 <pre>
1059     execute("INSERT INTO person (name) VALUES ('Blaise Pascal')");
1060     new_id = execute("SELECT currval('person_id_seq')");
1061 </pre>
1062
1063
1064 <h4 id="item4.11.3">4.11.3</a>) <i>currval()</i> ¤Ï¾¤Î¥æ¡¼¥¶¤È¤Î¶¥¹ç¾õÂ֤˴٤뤳¤È¤Ï¤Ê¤¤¤Ç¤¹¤«¡©</h4>
1065
1066     <p>¤½¤ì¤Ï¤¢¤ê¤Þ¤»¤ó¡£<i>currval()</i> ¤Ï¡¢¤¹¤Ù¤Æ¤Î¥æ¡¼¥¶¤Ç¤Ï¤¢¤ê¤Þ¤»
1067     ¤ó¤¬¡¢ÆɼԤΥ»¥Ã¥·¥ç¥ó¤ËÍ¿¤¨¤é¤ì¤¿¸½ºß¤ÎÃͤòÊÖ¤·¤Þ¤¹¡£ </p>
1068
1069
1070 <h4 id="item4.11.4">4.11.4</a>) ¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤¬ÃæÃǤ·¤¿¤È¤­¤Ë¤â¤¦¤¤¤Á¤É¥·¡¼¥±¥ó¥¹Èֹ椬»È¤ï¤ì¤Ê¤¤¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©¥·¡¼¥±¥ó¥¹¡¿SERIAL¥«¥é¥à¤Ë¶õ¤­¤¬¤¢¤ë¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©</h4>
1071
1072     <p>Ʊ»þÀ­¤ò²þÁ±¤¹¤ë¤¿¤á¤Ë¡¢¼Â¹ÔÃæ¤Î¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤Ë¡¢É¬Íפ˱þ¤¸¤Æ¥È
1073     ¥é¥ó¥¶¥¯¥·¥ç¥ó¤¬½ªÎ»¤¹¤ë¤Þ¤Ç¥í¥Ã¥¯¤µ¤ì¤Ê¤¤¤è¤¦¥·¡¼¥±¥ó¥¹ÃͤòÍ¿¤¨¤Æ¤¤
1074     ¤Þ¤¹¡£¤³¤Î¤¿¤á¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤¬ÃæÃǤµ¤ì¤ë¤ÈÈÖ¹æ³ä¤êÅö¤Æ¤Ë¥®¥ã¥Ã¥×¤ò
1075     À¸¤¸¤Þ¤¹¡£</p> 
1076
1077
1078 <h4 id="item4.12">4.12</a>) <small>OID</small> ¤È¤Ï²¿¤Ç¤¹¤«¡© <small>CTID</small> ¤È¤Ï²¿¤Ç¤¹¤«¡©</h4>
1079
1080     <p>PostgreSQL¤Ç¤Ä¤¯¤é¤ì¤ë¤¹¤Ù¤Æ¤Î¥í¥¦¤Ï¡¢<small>WITHOUT OIDS</small>
1081     ¤Ç¤Ä¤¯¤é¤ì¤Ê¤¤¤«¤®¤ê°ì°Õ¤Î<small>OID</small>¤òÆÀ¤Þ¤¹¡£
1082     <small>OID</small>¤Ï¼«Æ°Åª¤Ë4¥Ð¥¤¥È¤ÎÀ°¿ô¤ÇÍ¿¤¨¤é¤ì¡¢¤½¤ì¤Ï¡¢Á´¥¤¥ó
1083     ¥¹¥È¥ì¡¼¥·¥ç¥ó¤òÄ̤·¤Æ°ì°Õ¤ÊÃͤȤʤê¤Þ¤¹¡£¤·¤«¤·¡¢Ìó40²¯¤Ç¥ª¡¼¥Ð¡¼¥Õ
1084     ¥í¡¼¤·¡¢¤½¤·¤Æ¡¢<small>OID</small>¤Ï½ÅÊ£¤ò¤·¤Ï¤¸¤á¤Þ¤¹¡£PostgreSQL¤Ï
1085     ÆâÉô¥·¥¹¥Æ¥à¥Æ¡¼¥Ö¥ë¤ò°ì½ï¤Ë¥ê¥ó¥¯¤¹¤ë¤¿¤á¤Ë<small>OID</small> ¤ò»È
1086     ¤¤¤Þ¤¹¡£
1087
1088     <p>¥æ¡¼¥¶¤Î¥Æ¡¼¥Ö¥ë¤Î¥«¥é¥à¤Ë°ì°Õ¤ÎÈÖ¹æ¤òÉÕ¤±¤ë¤¿¤á¤Ë¤Ï¡¢
1089     <small>OID</small> ¤Ç¤Ï¤Ê¤¯ <small>SERIAL</small> ¤ò»È¤¦¤Î¤¬ºÇ¤â¤è¤¤
1090     ¤Ç¤·¤ç¤¦¡£<small>SERIAL</small>¤ÎÏ¢ÈÖ¤Ï1¤Ä¤Î¥Æ¡¼¥Ö¥ëÆâ¤Ç¤Î¤ß°ì°Õ¤Ë¤Ê
1091     ¤ë¤«¤é¤Ç¡¢¥ª¡¼¥Ð¡¼¥Õ¥í¡¼¤òµ¯¤³¤·¤Ë¤¯¤¤¤È¹Í¤¨¤é¤ì¤Þ¤¹¡£
1092     8¥Ð¥¤¥È¤Î¥·¡¼¥±¥ó¥¹ÃͤòÊݸ¤¹¤ë¤¿¤á¤Ë¡¢<small>SERIAL8</small>¤¬¤¢¤ê
1093     ¤Þ¤¹¡£</p>
1094
1095     <p><small>CTID</small> ¤Ï¡¢ÆÃÄê¤ÎʪÍý¥í¥¦¤ò¥Ö¥í¥Ã¥¯¤È¥ª¥Õ¥»¥Ã¥È¤ÎÃÍ
1096     ¤Ç¼±Ê̤¹¤ë¤¿¤á¤Ë»È¤ï¤ì¤Þ¤¹¡£<small>CTID</small>¤Ï¡¢¥í¥¦¤¬½¤Àµ¤µ¤ì¤¿
1097     ¤êºÆÆɹþ¤ß¤µ¤ì¤¿¤È¤­¤ËÊѤï¤ê¤Þ¤¹¡£¤Þ¤¿¡¢ÊªÍý¥í¥¦¤òº¹¤¹¤¿¤á¤Ë¥¤¥ó¥Ç¥Ã
1098     ¥¯¥¹¤Îµ­ºÜ¤Ë»È¤ï¤ì¤Þ¤¹¡£</p>
1099
1100
1101 <h4 id="item4.13">4.13</a>) ¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸ <i>"ERROR: Memory exhausted in AllocSetAlloc()"</i>¤¬½Ð¤ë¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©</h4>
1102
1103     <p>¤ª¤½¤é¤¯¡¢¥·¥¹¥Æ¥à¤Î²¾ÁÛ¥á¥â¥ê¡¼¤òÁ´¤Æ»È¤¤²Ì¤¿¤·¤Æ¤·¤Þ¤Ã¤Æ¤¤¤ë²Ä
1104     Ç½À­¤¬¤¢¤ë¤«¡¢¥«¡¼¥Í¥ë¤¬¤¢¤ë¥ê¥½¡¼¥¹¤Ë¤Ä¤¤¤Æ¤â¤ÄÀ©¸ÂÃͤ¬Ä㤹¤®¤ë²Äǽ
1105     À­¤¬¤¢¤ê¤Þ¤¹¡£<i>postmaster</i> ¤ò»ÏÆ°¤¹¤ëÁ°¤Ë¤³¤ì¤ò»î¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤¡§</p>
1106
1107 <pre>
1108     ulimit -d 262144
1109     limit datasize 256m
1110 </pre>
1111
1112     ¥·¥§¥ë¤Ë¤è¤Ã¤Æ¡¢¤É¤Á¤é¤«¤Ò¤È¤Ä¤¬À®¸ù¤¹¤ë¤Ç¤·¤ç¤¦¤¬¡¢¤³¤ì¤Ï¥×¥í¥»¥¹¤Î
1113     ¥Ç¡¼¥¿¥»¥°¥á¥ó¥ÈÀ©¸Â¤ò¤è¤ê¹â¤¯ÀßÄꤷ¡¢¤¿¤Ö¤ó¥¯¥¨¥ê¤¬´°·ë¤¹¤ë¤è¤¦¤Ë¤Ê
1114     ¤ë¤Ç¤·¤ç¤¦¡£¤³¤Î¥³¥Þ¥ó¥É¤Ï¸½¹Ô¤Î¥×¥í¥»¥¹¤È¡¢¤³¤Î¥³¥Þ¥ó¥É¤òÁö¤é¤»¤¿¸å
1115     ¤Ëºî¤é¤ì¤ëÁ´¤Æ¤Î¥µ¥Ö¥×¥í¥»¥¹¤Ë¤Ä¤¤¤ÆŬÍѤµ¤ì¤Þ¤¹¡£¥Ð¥Ã¥¯¥¨¥ó¥É¤¬¤È¤Æ
1116     ¤â¿¤¯¤Î¥Ç¡¼¥¿¤òÊÖ¤¹¤¿¤á¤Ë<small>SQL</small> ¥¯¥é¥¤¥¢¥ó¥È¤ÇÌäÂ꤬³
1117     ¤¤¤Æ¤¤¤ë¤Î¤Ç¤¢¤ì¤Ð¡¢¥¯¥é¥¤¥¢¥ó¥È¤ò³«»Ï¤¹¤ëÁ°¤Ë¤³¤ì¤ò»î¤·¤Æ¤ß¤Æ¤¯¤À¤µ
1118     ¤¤¡£ 
1119
1120 <h4 id="item4.14">4.14</a>) ¤É¤Î¥Ð¡¼¥¸¥ç¥ó¤Î PostgreSQL ¤òÁö¤é¤»¤Æ¤¤¤ë¤«¤òÄ´¤Ù¤ë¤Ë¤Ï¤É¤¦¤·¤Þ¤¹¤«¡©<br /></h4>
1121
1122     <p><i>psql</i> ¤«¤é <CODE>SELECT version();</CODE> ¤ò¥¿¥¤¥×¤·¤Þ¤¹¡£</p>
1123
1124
1125 <h4 id="item4.15">4.15</a>) ¸½ºß¤Î»þ¹ï¤¬¥Ç¥Õ¥©¥ë¥È¤È¤Ê¤ë¤è¤¦¤Ê¥«¥é¥à¤Ï¤É¤Î¤è¤¦¤Ë¤Ä¤¯¤ê¤Þ¤¹¤«¡©<br /></h4>
1126
1127     <p><i>CURRENT_TIMESTAMP</i>¤ò»È¤¤¤Þ¤¹:</p>
1128 <pre>
1129     CREATE TABLE test (x int, modtime TIMESTAMP DEFAULT CURRENT_TIMESTAMP );
1130 </pre>
1131
1132
1133 <h4 id="item4.16">4.16</a>) <i>³°Éô</i>·ë¹ç(<i>outer</i> join)¤Ï¤É¤Î¤è¤¦¤Ë¼Â¸½¤·¤Þ¤¹¤«?<br /></h4>
1134
1135     <p>PostgreSQL ¤Ï SQL É¸½à¹½Ê¸¤ò»È¤¦³°Éô·ë¹ç(¥¢¥¦¥¿¡¼¥¸¥ç¥¤¥ó)¤ò¥µ¥Ý¡¼
1136     ¥È¤·¤Þ¤¹¡£¤³¤³¤Ë 2¤Ä¤ÎÎãÂ꤬¤¢¤ê¤Þ¤¹¡£</p> 
1137
1138 <pre>
1139     SELECT *
1140     FROM t1 LEFT OUTER JOIN t2 ON (t1.col = t2.col);
1141 </pre>
1142 ¤¢¤ë¤¤¤Ï
1143 <pre>
1144     SELECT *
1145     FROM t1 LEFT OUTER JOIN t2 USING (col);
1146 </pre>
1147
1148 ¤³¤ì¤é¤Î¾ÝħŪ¤Ê¥¯¥¨¥ê¤Ç¤Ï t1.col ¤ò t2.col ¤È·ë¹ç¤·¤Æ¡¢t1 ¤Î·ë¹ç¤µ¤ì¤Ê¤«¤Ã¤¿¥í¥¦(t2 ¤È°ìÃפ·¤Ê¤«¤Ã¤¿¥í¥¦)¤âÊÖ¤·¤Æ¤¤¤Þ¤¹¡£<small>RIGHT</small> ·ë¹ç¤Ï t2 ¤Î·ë¹ç¤µ¤ì¤Ê¤«¤Ã¤¿¥í¥¦¤ò²Ã¤¨¤ë¤Ç¤·¤ç¤¦¡£<small>FULL</small> ·ë¹ç¤Ï¡¢°ìÃפ·¤¿¥í¥¦¤Ë t1 ¤È t2 ¤«¤é¤Ï·ë¹ç¤µ¤ì¤Ê¤«¤Ã¤¿¥í¥¦¤òÊÖ¤¹¤Ç¤·¤ç¤¦¡£<small>OUTER</small> ¤È¤¤¤¦¸ÀÍդϥª¥×¥·¥ç¥ó¤Ç <small>LEFT</small>, <small>RIGHT</small>, ¤Þ¤¿¤Ï <small>FULL</small> ¤Ê¤É¤Î·ë¹ç¤ò²¾Äꤵ¤ì¤Æ¤¤¤Þ¤¹¡£Ä̾·ë¹ç¤Ï<small>INNER</small>·ë¹ç¤È¸Æ¤Ð¤ì¤Þ¤¹¡£
1149
1150
1151 <h4 id="item4.17">4.17</a>) Ê£¿ô¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò»È¤¦Ì䤤¹ç¤ï¤»¤Ï¤É¤Î¤è¤¦¤Ë¤¹¤ì¤Ð¤Ç¤­¤Þ¤¹¤«¡©</h4>
1152
1153     <p>¸½¹Ô¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹°Ê³°¤Ø¤ÎÌ䤤¹ç¤ï¤»¤ÎÊýË¡¤Ï¤¢¤ê¤Þ¤»¤ó¡£¤È¤¤¤¦¤Î
1154     ¤âPostgreSQL¤¬¥Ç¡¼¥¿¥Ù¡¼¥¹»ÅÍͤΥ·¥¹¥Æ¥à¥«¥¿¥í¥°¤òÆɤ߹þ¤à¤¿¤á¤Ç¡¢¤½
1155     ¤³¤Ë¤Ï¡¢¤¿¤È¤¨¤½¤Î¤Õ¤ê¤ò¤¹¤ë¤À¤±¤Ë¤·¤í¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò±Û¤¨¤ÆÌ䤤¹ç¤ï
1156     ¤»¤ò¤¹¤ë¤¹¤Ù¤¬¤¢¤ê¤Þ¤»¤ó¡£ </p>
1157
1158     <p><i>contrib/dblink</i> ¤Ï¥Ç¡¼¥¿¥Ù¡¼¥¹´Ö(cross-database)¤ÎÌ䤤¹ç¤ï
1159     ¤»¤ò´Ø¿ô¸Æ½Ð¤·¤Ë¤è¤êµö¤·¤Þ¤¹¡£¤â¤Á¤í¤ó¡¢¥¯¥é¥¤¥¢¥ó¥È¤ÏƱ»þ¤ËÀܳ¤òÊÌ
1160     ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ø¤âÄ¥¤é¤Ê¤¯¤Æ¤Ï¤Ê¤é¤º¡¢·ë²Ì¤ò¥¯¥é¥¤¥¢¥ó¥È¦¤Ç¥Þ¡¼¥¸¤·
1161     ¤Ê¤¯¤Æ¤Ï¤Ê¤ê¤Þ¤»¤ó¡£</p>
1162
1163
1164 <h4 id="item4.18">4.18</a>) ´Ø¿ô¤«¤éÊ£¿ô¤Î¥í¥¦¤Þ¤¿¤Ï¥«¥é¥à¤òÊÖ¤¹¤Ë¤Ï¤É¤¦¤·¤Þ¤¹¤«¡©</h4>
1165
1166     <p>½¸¹ç¤òÊÖ¤¹´Ø¿ô(Set Returning Functions):
1167     <a href="http://techdocs.postgresql.org/guides/SetReturningFunctions">
1168     http://techdocs.postgresql.org/guides/SetReturningFunctions</a>
1169     ¤ò»È¤¦¤È´Êñ¤Ç¤¹</p>¡£
1170
1171
1172 <h4 id="item4.19">4.19</a>) PL/PgSQL ¤Î´Ø¿ô¤ÎÃæ¤Ç°ì»þ¥Æ¡¼¥Ö¥ë¤Ë¥¢¥¯¥»¥¹¤¹¤ë¤È¤­¡¢¤É¤¦¤·¤Æ "relation with OID ##### does not exist" ¤È¤¤¤¦¥¨¥é¡¼¤ò¼õ¤±¼è¤ë¤Î¤Ç¤·¤ç¤¦¤«¡©</h4>
1173
1174     <p>PL/PgSQL ¤Ï´Ø¿ô¥¹¥¯¥ê¥×¥È¤ò¥­¥ã¥Ã¥·¥å¤·¡¢ÉÔ¹¬¤Ë¤â¤½¤ÎÉûºîÍѤǡ¢
1175     PL/PgSQL´Ø¿ô¤¬°ì»þ¥Æ¡¼¥Ö¥ë¤Ë¥¢¥¯¥»¥¹¤¹¤ë¾ì¹ç¡¢¸å¤Ç¤½¤Î¥Æ¡¼¥Ö¥ë¤ò¾Ã¤·
1176     ¤Æºî¤ê¤Ê¤ª¤µ¤ì¡¢´Ø¿ô¤¬¤â¤¦°ìÅٸƤӽФµ¤ì¤ë¤È¡¢¤½¤Î´Ø¿ô¤Ï¥­¥ã¥Ã¥·¥å¤·
1177     ¤Æ¤¤¤ë´Ø¿ô¤ÎÆâÍƤϤޤÀ¸Å¤¤°ì»þ¥Æ¡¼¥Ö¥ë¤òº¹¤·¼¨¤·¤¿¤Þ¤Þ¤À¤«¤é¤Ç¤¹¡£
1178     ¤³¤Î¡¢²ò·èºö¤È¤·¤Æ¡¢PL/PgSQL¤ÎÃæ¤Ç <small>EXECUTE</small> ¤ò°ì»þ¥Æ¡¼
1179     ¥Ö¥ë¤Ø¤Î¥¢¥¯¥»¥¹¤Î¤¿¤á¤Ë»È¤¤¤Þ¤¹¡£¤½¤¦¤¹¤ë¤È¡¢¥¯¥¨¥ê¤ÏËè²ó¥Ñ¡¼¥¹¤ò¤ä
1180     ¤êľ¤·¤µ¤ì¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£</p>
1181
1182 <h4 id="item4.20">4.20</a>) ¤É¤Î¤è¤¦¤Ê¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¤Î¥½¥ê¥å¡¼¥·¥ç¥ó¤¬¤¢¤ê¤Þ¤¹¤«¡©</h4>
1183     <p>¡Ö¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¡×¤È°ì¸À¤Ç¤¤¤¤¤Þ¤¹¤¬¡¢¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¤ò¤¹¤ë
1184     ¤¿¤á¤Îµ»½Ñ¤Ï¤¤¤¯¤Ä¤«¤¢¤ê¡¢¤½¤ì¤¾¤ì¡¢ÍøÅÀ¤È·çÅÀ¤¬¤¢¤ê¤Þ¤¹¡£</p>
1185
1186     <p>¥Þ¥¹¥¿¡¿¥¹¥ì¡¼¥Ö¤Î¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¤Ï¡¢Æɤߡ¿½ñ¤­¤Î¥¯¥¨¥ê¤ò¼õ¤±¼è
1187     ¤ë¥·¥ó¥°¥ë¥Þ¥¹¥¿¤¬²Äǽ¤Ç¡¢¥¹¥ì¡¼¥Ö¤Ç¤Ï Æɤߡ¿<small>SELECT</small>¤Î
1188     Ì䤤¹ç¤ï¤»¤À¤±¤ò¼õ¤±ÉÕ¤±¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£ºÇ¤â¿Íµ¤¤¬¤¢¤ë¡¢¥Õ¥ê¡¼¤ÇÍø
1189     ÍѤǤ­¤ë¡¢¥Þ¥¹¥¿¡Ý¥¹¥ì¡¼¥Ö¤ÎPostgreSQL¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¥½¥ê¥å¡¼¥·¥ç¥ó
1190     ¤Ï¡¢<a 
1191     href="http://gborg.postgresql.org/project/slony1/projdisplay.php">
1192     Slony-I</a> ¤Ç¤¹¡£</p>
1193
1194     <p>¥Þ¥ë¥Á¡Ý¥Þ¥¹¥¿¤Î¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¤Ï¡¢Æɤߡ¿½ñ¤­¤Î¥¯¥¨¥ê¤ò¼õ¤±¤È
1195     ¤ê¡¢Ê£¿ô¤Î¥ì¥×¥ê¥±¡¼¥È¤µ¤»¤ë¥³¥ó¥Ô¥å¡¼¥¿¤ËÁ÷¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£¤³¤Îµ¡
1196     Ç½¤Ï¡¢¥µ¡¼¥Ð´Ö¤ÎÊѹ¹¤ÎƱ´ü¤¬É¬Íפʤ¿¤á¡¢À­Ç½¤Ë½ÅÂç¤Ê¾×·â¤òÍ¿¤¨¤Þ¤¹¡£
1197     <a href="http://pgfoundry.org/projects/pgcluster/">Pgcluster</a> ¤Ï¡¢
1198     ¤³¤Î¤è¤¦¤Ê¥½¥ê¥å¡¼¥·¥ç¥ó¤È¤·¤ÆPostgreSQL¤Î¤¿¤á¤Ë¥Õ¥ê¡¼¤ÇÍøÍѤǤ­¤ë¤â
1199     ¤Î¤È¤·¤Æ¡¢ºÇ¤â¿Íµ¤¤¬¤¢¤ê¤Þ¤¹¡£</p>
1200
1201     <p>¤³¤Î¾¤Ë¤â¡¢¾¦ÍѤä¥Ï¡¼¥É¥¦¥§¥¢¡Ý¥Ù¡¼¥¹¤Î¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¥½¥ê¥å¡¼
1202     ¥·¥ç¥ó¤¬¤¤¤í¤¤¤í¤Ê¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¥â¥Ç¥ë¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤Þ¤¹¡£</p>
1203   
1204 <h3 id="item4.21">4.21</a>)¥Æ¡¼¥Ö¥ë¤È¥«¥é¥à¤Î̾Á°¤¬¥¯¥¨¥ê¡¼¤ÎÃæ¤Çǧ¼±¤µ¤ì¤Ê¤¤¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©</h3>
1205
1206     <p>¤â¤Ã¤È¤â°ìÈÌŪ¤Ê¸¶°ø¤Ï¡¢¥Æ¡¼¥Ö¥ë¤òºîÀ®¤¹¤ëºÝ¤Ë¡¢¥Æ¡¼¥Ö¥ë¤ä¥«¥é¥à¤ò
1207     °Ï¤¦Æó½Å°úÍÑÉä¤Î»ÈÍѤǤ¹¡£Æó½Å°úÍÑÉä¤ò»È¤¦¤È¡¢¥Æ¡¼¥Ö¥ë¤È¥«¥é¥à¤Î̾Á°
1208     ¡Ê¼±Ê̻ҤȸƤӤޤ¹¡Ë¤Ï<a
1209     href="http://www.postgresql.org/docs/8.0/static/sql-syntax.html#SQL-SYNTAX-IDENTIFIERS">Âçʸ»ú¤È¾®Ê¸»ú¤Î¶èÊÌ</a>
1210     ¤ò¤·¤Æ³ÊǼ¤µ¤ì¤Þ¤¹¡£¤·¤¿¤¬¤Ã¤Æ¡¢pgAdmin¤Î¤è¤¦¤Ë¥Æ¡¼¥Ö¥ëºîÀ®¤Î¤È¤­¤Ë
1211     ¼«Æ°Åª¤ËÆó½Å°úÍÑÉä¤ò»È¤¦¤â¤Î¤Ï¥¯¥¨¥ê¤ÎÃæ¤Ç¤½¤ì¤é¤Î̾Á°¤ò»È¤¦¤È¤­¤Ë
1212     Æó½Å°úÍÑÉä¤òÉÕ¤±¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¤³¤È¤ò°ÕÌ£¤·¤Þ¤¹¡£¤³¤Î¤¿¤á¡¢¼±ÊÌ»Ò
1213     ¤òǧ¼±¤µ¤»¤ë¤¿¤á¤Ë¤Ï°Ê²¼¤Î¤¤¤º¤ì¤«¤ò¿´¤¬¤±¤Þ¤¹¡£
1214
1215     <ul>
1216     <li>¥Æ¡¼¥Ö¥ë¤òºîÀ®¤¹¤ë¤È¤­¤ËÆó½Å°úÍÑÉä¤Ç¼±Ê̻Ҥò°Ï¤¦¤³¤È¤òÈò¤±¤ë</li>
1217     <li>¼±Ê̻ҤˤϾ®Ê¸»ú¤À¤±¤ò»È¤¦</li>
1218     <li>¥¯¥¨¥ê¤ÎÃæ¤Ç»²¾È¤¹¤ë¤È¤­¤ÏÆó½Å°úÍÑÉä¤Ç¼±Ê̻Ҥò°Ï¤¦</li>
1219     </ul>
1220
1221
1222 <hr />
1223
1224 <h2 align="center">ÆüËܸì¤Ë´Ø¤¹¤ë¼ÁÌä</h2>
1225
1226 <h3 id="item5.1">5.1</a>)ÆüËܸ줬¤¦¤Þ¤¯°·¤¨¤Ê¤¤¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©</h3>
1227
1228
1229     <p><i>createdb -E</i>¥³¥Þ¥ó¥É¥ª¥×¥·¥ç¥ó¤Ë UTF8 ¤¢¤ë¤¤¤Ï EUC_JP
1230     ¤Î¥¨¥ó¥³¡¼¥Ç¥£¥ó¥°¤ò»ØÄꤷ¤Æ¥Ç¡¼¥¿¥Ù¡¼¥¹¤òºîÀ®¤¹¤«¡¢¼¡¤Î¤è¤¦¤Ë
1231     ¥¨¥ó¥³¡¼¥Ç¥£¥ó¥°¤ò»ØÄꤷ¤Æ¥Ç¡¼¥¿¥Ù¡¼¥¹¤òºîÀ®¤·¤Æ¤¯¤À¤µ¤¤¡£</p>
1232 <pre>
1233         CREATE DATABASE dbname WITH ENCODING 'UTF8';
1234     ¤â¤·¤¯¤Ï¡¢
1235         CREATE DATABASE dbname WITH ENCODING 'EUC_JP';
1236 </pre>
1237
1238
1239 <h3 id="item5.2">5.2</a>) psql ¤ÇWindows¤«¤é¥¢¥¯¥»¥¹¤·¤¿¤È¤­¤Ë¡¢ÆüËܸ줬ʸ»ú²½¤±¤¹¤ë¤Î¤Ç¤¹¤¬¡©</h3>
1240
1241     <p><i>psql</i>¤ÎÃæ¤Ç¥¯¥é¥¤¥¢¥ó¥È¤Î¥¨¥ó¥³¡¼¥Ç¥£¥ó¥°¤ò»ØÄꤷ¤Æ¤¯¤À¤µ¤¤¡£</p>
1242 <pre>
1243         SET client_encoding TO 'SJIS'
1244 </pre>
1245     <p>PostgreSQL¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥¨¥ó¥³¡¼¥Ç¥£¥ó¥°¤Ë»È¤¨¤ëÆüËܸìʸ»ú¥³¡¼¥É
1246     ¤Ï EUC_JP ¤« UTF-8(UNICODE) ¤Ç¤¢¤ë¤¿¤á¡¢Shift-JISɽ¼¨¤Î¥³¥Þ¥ó¥É¥×¥í
1247     ¥ó¥×¥È¤«¤é¤Ï¡¢client_encoding¤òÀßÄꤷ¤Æ¤ª¤«¤Ê¤¤¤È¡¢ÆüËܸì¤òɽ¼¨¤¹¤ë
1248     ºÝ¤Ëʸ»ú²½¤±¤¬¤ª¤­¤Þ¤¹¡£</p>
1249
1250
1251 <hr />
1252
1253 <h4 id="item-japanese">¡ÖÆüËܸìÈǤˤĤ¤¤Æ¡×</h4>
1254 <p><small><pre>
1255 [ÌõÃí¡§
1256   ÆüËܸìÈǤÎÀ½ºî¤Ë¤Ä¤¤¤Æ¤Ï°Ê²¼¤ÎÄ̤ê¤Ç¤¹¡£
1257
1258   ºÇ½ª¹¹¿·Æü:   2006ǯ10·î14Æü
1259   ËÝÌõ¼Ô:       ·¬Â¼ ½á (<a href="mailto:juk at PostgreSQL.jp">Jun Kuwamura &lt;juk at PostgreSQL.jp&gt;</a>)
1260
1261   ¤³¤ÎFAQ¤ÎÏÂÌõ¤ÎºîÀ®¤Ë¤¢¤¿¤ê¶¨ÎϤò¤·¤Æ¤¯¤À¤µ¤Ã¤¿Êý¡¹(·É¾Î¤Ïά¤µ¤»¤Æ¤¤¤¿¤À¤­¤Þ¤¹):
1262
1263                 ÅÄÃç Ì­(<a href="mailto:Tanaka.Minoru at keiken.co.jp">Minoru TANAKA &lt;Tanaka.Minoru at keiken.co.jp&gt;</a>)
1264                 Àаæ Ã£É×(<a href="mailto:t-ishii at sra.co.jp">Tatsuo ISHII &lt;t-ishii at sra.co.jp&gt;</a>)
1265                 óîÆ£ ÃοÍ(<a href="mailto:tomos at elelab.nsc.co.jp">Tomohito SAITOH &lt;tomos at elelab.nsc.co.jp&gt;</a>)
1266                 ÇϾ젠ȥ(<a href="mailto:baba at kusastro.kyoto-u.ac.jp">Hajime BABA &lt;baba at kusastro.kyoto-u.ac.jp&gt;</a>)
1267                 ²¬ËÜ °ì¹¬(<a href="mailto:kaz-okamoto at hitachi-system.co.jp">Kazuyuki OKAMOTO &lt;kaz-okamoto at hitachi-system.co.jp&gt;</a>)
1268                 ¾®¿û ¾¼°ì(<a href="mailto:s-kosuge at str.hitachi.co.jp">Shoichi Kosuge &lt;s-kosuge at str.hitachi.co.jp&gt;</a>)
1269                 »³²¼ µÁÇ·(<a href="mailto:dica at eurus.dti.ne.jp">Yoshiyuki YAMASHITA &lt;dica at eurus.dti.ne.jp&gt;</a>)
1270                 ¶­ ¿¿ÂÀϺ(<a href="mailto:s_sakai at mxn.mesh.ne.jp">Sintaro SAKAI &lt;s_sakai at mxn.mesh.ne.jp&gt;</a>)
1271                 À¸±Û ¾»¸Ê(<a href="mailto:ogochan at zetabits.com">Masami OGOSHI &lt;ogochan at zetabits.com&gt;</a>)
1272                 ÀÐÀî ½Ó¹Ô(<a href="mailto:tosiyuki at gol.com">Toshiyuki ISHIKAWA &lt;tosiyuki at gol.com&gt;</a>)
1273                 ËÜÅÄ Ìй­(<a href="mailto:fwif0083 at mb.infoweb.ne.jp">Shigehiro HONDA &lt;fwif0083 at mb.infoweb.ne.jp&gt;</a>)
1274                 ¤»¤» ¤¸¤å¤ó(<a href="mailto:sesejun at linet.gr.jp">Jun SESE &lt;sesejun at linet.gr.jp&gt;</a>)
1275                 ¿À렱ѹ§(<a href="mailto:hkamiya at catvmics.ne.jp">Hidetaka KAMIYA &lt;hkamiya at catvmics.ne.jp&gt;</a>)
1276                 ¿û¸¶ ÆØ(<a href="mailto:asugawar at f3.dion.ne.jp">Atsushi SUGAWARA &lt;asugawar at f3.dion.ne.jp&gt;</a>)
1277                 °ðÍÕ ¹áÍý(<a href="mailto:i-kaori at sra.co.jp">Kaori Inaba &lt;i-kaori at sra.co.jp&gt;</a>)
1278                 Àаæ Ã£É×(<a href="mailto:t-ishii at sra.co.jp">Tatsuo Ishii &lt;t-ishii at sra.co.jp&gt;</a>)
1279
1280   ¤ò¤Ï¤¸¤á¡¢¥Ý¥¹¥È¥°¥ì¥¹¤Ë´Ø¤¹¤ëÏÃÂêË­ÉÙ¤ÊÆüËܸìPostgreSQL¥á¡¼¥ê¥ó¥°¥ê¥¹¥È¡¢
1281   ÏÂÌõ¤Î¤­¤Ã¤«¤±¤òºî¤Ã¤Æ¤¯¤ì¤¿¤ê¡¢¤¤¤Ä¤â¥Á¥§¥Ã¥¯¤ò¤·¤Æ¤¯¤ì¤ë
1282    <a href="http://jf.linux.or.jp/">JF(Linux Japanese FAQ)¥×¥í¥¸¥§¥¯¥È</a>¡¢FreeBSD ¥É¥­¥å¥á¥ó¥Æ¡¼¥·¥ç¥ó¥×¥í¥¸¥§¥¯¥È
1283   ¤ÎÊý¡¹¡¢¤½¤ì¤«¤é¡¢Ä¾Àܤ¢¤ë¤¤¤Ï´ÖÀÜŪ¤Ë¤«¤«¤ï¤Ã¤Æ¤¯¤À¤µ¤ë¤¹¤Ù¤Æ¤Î¥ª¡¼¥×¥ó¥½¡¼¥¹
1284   ¥³¥ß¥å¥Ë¥Æ¥£¤Î¤ß¤Ê¤µ¤Þ¤Ë´¶¼Õ¤¤¤¿¤·¤Þ¤¹¡£
1285
1286
1287   ¤³¤ÎËÝÌõʸ½ñ¤Ï <a href="http://www.postgresql.org/docs/faq/">ËܲȠ"Frequently Asked Questions" </a> ¤Î¥Ú¡¼¥¸¤Ë "Japanese FAQ" 
1288   ¤È¤¤¤¦¹àÌܤǤ¢¤ê¤Þ¤¹¡£
1289   
1290   ¤Þ¤¿¡¢ºÇ¿·ÈǤϰʲ¼¤Î¥µ¥¤¥È¤Ë¤¢¤ê¤Þ¤¹¡£
1291         <a
1292   href="http://www.PostgreSQL.jp/wg/jpugdoc/">http://www.PostgreSQL.jp/wg/jpugdoc/</a> ¡ÖJPUGʸ½ñ¡¦½ñÀÒ´ØϢʬ²Ê²ñ¡×
1293         <a href="http://www.linux.or.jp/JF/JFdocs/INDEX-database.html">http://www.linux.or.jp/JF/JFdocs/INDEX-database.html</a> ¡ÖLinux JF¥×¥í¥¸¥§¥¯¥È¡×
1294         <a   href="http://www.rccm.co.jp/~juk/pgsql/">http://www.rccm.co.jp/~juk/pgsql/</a> ¡ÖPostgreSQL Notes for Japanese¡×¡ÊËÝÌõ¼Ô¥Ú¡¼¥¸¡Ë
1295
1296   ¤Ê¤ª¡¢¤³¤ÎÏÂÌõ¤Ë´Ø¤¹¤ë¤´°Õ¸«¡¦¤´¼ÁÌä¤Ï(<a href="mailto:juk at
1297   PostgreSQL.jp">juk at PostgreSQL.jp</a>)¤Þ¤Ç¤ª´ó¤»¤¯¤À¤µ¤¤¡£
1298   ¡Ê¢¨ ¥á¡¼¥ë¥¢¥É¥ì¥¹¤Î " at " ¤ÏŬÀڤ˾¤·¤Æ¤¯¤À¤µ¤¤¡£È¾³Ñ¤Î "@" ¤Ç¤¹¡£¡Ë
1299 ]
1300 </pre></small></p>
1301
1302 </div>
1303
1304 </BODY>
1305 </HTML>
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