On Feb 1, 2007, at 12:09 PM, Harpreet Dhaliwal wrote:
For inserting the id, i need to query a table xyz, fetch the maximum id in it, increment it by 1 and store it in tbl_email. Right after BEGIN in my function I have a commnet where in I need to query the xyz table, fetch the max id and store it in a variable and then I can increment this variable and store it in tbl_email.
That's not safe unless you get an exclusive lock on the table before the select.
Why don't you just use a sequence/serial?
How should i define this variable first and how to push the result of the query fired on table xyz.
SELECT INTO v_max_id max(id) FROM table ; -- Jim Nasby jim@xxxxxxxxx EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
