now = datetime.datetime.now()
cur.execute("select ?", (now,))
print(cur.fetchone()[0])
+
+con.close()
p = Point(4.0, -3.2)
cur.execute("select ?", (p,))
print(cur.fetchone()[0])
+
+con.close()
p = Point(4.0, -3.2)
cur.execute("select ?", (p,))
print(cur.fetchone()[0])
+
+con.close()
+++ /dev/null
-import sqlite3
-
-con = sqlite3.connect("mydb")
+++ /dev/null
-import sqlite3
-
-con = sqlite3.connect(":memory:")
cur1 = con.cursor()
cur2 = con.cursor()
print(con.numcursors)
+
+con.close()
con.execute("insert into person(firstname) values (?)", ("Joe",))
except sqlite3.IntegrityError:
print("couldn't add Joe twice")
+
+# Connection object used as context manager only commits or rollbacks transactions,
+# so the connection object should be closed manually
+con.close()
cur.execute(SELECT)
for row in cur:
print('%s is %d years old.' % (row[0], row[1]))
+
+con.close()
# Retrieve all rows as a sequence and print that sequence:
print(cur.fetchall())
+
+con.close()
cur.execute("select * from people where name_last=:who and age=:age", {"who": who, "age": age})
print(cur.fetchone())
+
+con.close()
+++ /dev/null
-import sqlite3
-
-con = sqlite3.connect("mydb")
-
-cur = con.cursor()
-
-who = "Yeltsin"
-age = 72
-
-cur.execute("select name_last, age from people where name_last=:who and age=:age",
- locals())
-print(cur.fetchone())
cur.execute("select c from characters")
print(cur.fetchall())
+
+con.close()
cur.execute("select c from characters")
print(cur.fetchall())
+
+con.close()
1987
);
""")
+con.close()
# The changes will not be saved unless the transaction is committed explicitly:
con.commit()
+
+con.close()
""")
for row in con.execute("select rowid, name, ingredients from recipe where name match 'pie'"):
print(row)
+
+con.close()
cur = con.cursor()
cur.execute("select md5(?)", (b"foo",))
print(cur.fetchone()[0])
+
+con.close()
cur.execute("insert into test(i) values (2)")
cur.execute("select mysum(i) from test")
print(cur.fetchone()[0])
+
+con.close()
cur.execute('select ? as "x [timestamp]"', (datetime.datetime.now(),))
dt = cur.fetchone()[0]
print(dt, type(dt))
+
+con.close()
row = cur.fetchone()
print("current_date", row[0], type(row[0]))
print("current_timestamp", row[1], type(row[1]))
+
+con.close()
cur = con.cursor()
cur.execute("select 1 as a")
print(cur.fetchone()["a"])
+
+con.close()
assert row["name"] == row["nAmE"]
assert row[1] == row["age"]
assert row[1] == row["AgE"]
+
+con.close()
print(row)
print("I just deleted", con.execute("delete from person").rowcount, "rows")
+
+# close is not a shortcut method and it's not called automatically,
+# so the connection object should be closed manually
+con.close()
print(fieldValue.ljust(FIELD_MAX_WIDTH), end=' ')
print() # Finish the row with a newline.
+
+con.close()
cur.execute("select ?", ("bar",))
row = cur.fetchone()
assert row[0] == "barfoo"
+
+con.close()
with open('dump.sql', 'w') as f:
for line in con.iterdump():
f.write('%s\n' % line)
+ con.close()
.. method:: backup(target, *, pages=0, progress=None, name="main", sleep=0.250)
print(f'Copied {total-remaining} of {total} pages...')
con = sqlite3.connect('existing_db.db')
- with sqlite3.connect('backup.db') as bck:
+ bck = sqlite3.connect('backup.db')
+ with bck:
con.backup(bck, pages=1, progress=progress)
+ bck.close()
+ con.close()
Example 2, copy an existing database into a transient copy::
projects / python / commitdiff