Hi, > > I need to do an operation that I will use some SELECT's and get the > results, but I want to have sure that those tables have not been > changed with INSERT's or UPDATES during the operation. > > Example: > > BEGIN OPERATION > Select field from table1; > ... > Select other_field from table2; > ... > END OPERATION > > How can I lock these tables to assure that the tables are not getting > INSERTS's or UPDATE's during the operation? > If you set transaction isolation level to repeatable, the tables may undergo changes, but you will get repeatable reads. Explicitly locking the tables is another option. http://www.postgresql.org/docs/current/static/explicit-locking.html Regards, Jayadevan
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