restrictive lock mode possible. <command>LOCK TABLE</command>
provides for cases when you might need more restrictive locking.
For example, suppose an application runs a transaction at the
- Read Committed isolation level and needs to ensure that data in a
- table remains stable for the duration of the transaction. To
- achieve this you could obtain <literal>SHARE</> lock mode over the
+ <literal>READ COMMITTED</> isolation level and needs to ensure that
+ data in a table remains stable for the duration of the transaction.
+ To achieve this you could obtain <literal>SHARE</> lock mode over the
table before querying. This will prevent concurrent data changes
and ensure subsequent reads of the table see a stable view of
committed data, because <literal>SHARE</> lock mode conflicts with