Home/ Questions/Q 9011139
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-16T02:39:01+00:00

Trying to check if a name exists (in another table) and add to insert

  • 0

Trying to check if a name exists (in another table) and add to insert query in one step. I’ve discovered if the submitted empNum isn’t in the User database, the query errors with: Column ‘lastName’ cannot be null. Can an if statement be used in the subquery something like below?

INSERT INTO Password_Reset (empNum, lastName, fromIP, dateReset)
    VALUES (34567, 
    IF(SELECT COUNT(*) FROM User WHERE empNum = 34567, SELECT lastName FROM User WHERE empNum = 34567, '---'),
    '192.168.1.1',
    NOW())
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Your subqueries should be in parenthesis :

    IF( (SELECT COUNT(*) FROM User WHERE empNum = 34567), 
    (SELECT lastName FROM User WHERE empNum = 34567), 
 '---'),

    There many other ways you can do the same as already mentioned by others, but your version will also work after adding required “()”.

    • 0