What Happens To a Query If It Times Out?

Question

Let\'s say I have a query that is sent to my SQL-Server database, it takes more than 30 seconds, and my program throws an SQL Query Timeout exception. Is the query still ch

Answer 1

Usually when it times out it means the connection has died, meaning the query has not been sent to the database, most database support Transactions where you can start a transaction, run your queries, and if your happy you can commit them.

Example:

BEGIN TRAN

UPDATE  authors
   SET  au_fname = 'John'
WHERE   au_id = '172-32-1176'

UPDATE  authors
   SET  au_fname = 'Marg'
WHERE   au_id = '213-46-8915'

COMMIT TRAN