Skip to main content

deleting data from a MSSQL table in chunks

Often I've found it more reliable to break up data destruction into chunks

CTE ( Common Table Expressions) makes it easy  and quick to delete the top x number of records from a table


;WITH CTE AS
(
SELECT TOP 10000000 * FROM [dbo].[TargetTable]
)
DELETE FROM CTE 


If you want to get rid of all data in the table, there is always

TRUNCATE TABLE [dbo].[TargetTable]

Comments

Post a Comment

Popular posts from this blog

Javascript Form Validation

It's real simple. All you need to do is call a javascript function in a html  " onsubmit " in the form tag as a javascript return, like this       <form method="post" action="dosomething.php" onsubmit="return validateForm();"> If the code completes ok, the form is then sent to the page listed in "action" http://www.w3schools.com/js/js_form_validation.asp If the function specified in the onsubmit returns false, then the form is not sent to the page mentioned in action.
Post a Comment
Read more