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? Best Regards, -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general