Difference between revisions of "Delete Queries"

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<syntaxhighlight lang=sql>
 
<syntaxhighlight lang=sql>
DELETE FROM table WHERE column1=value1;
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  DELETE FROM table WHERE column1=value1;
 
</syntaxhighlight>
 
</syntaxhighlight>
  
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<syntaxhighlight lang=sql>
 
<syntaxhighlight lang=sql>
DELETE FROM table WHERE column1=value1 AND column2=value2;
+
  DELETE FROM table WHERE column1=value1 AND column2=value2;
 
</syntaxhighlight>
 
</syntaxhighlight>
  

Revision as of 23:32, 21 December 2016

Used for deleting rows from a table.

   DELETE FROM table WHERE column1=value1;

or:

   DELETE FROM table WHERE column1=value1 AND column2=value2;
  • Not specifying which records to delete will result in every record being deleted
  • The same can be achieved with 'DELETED * FROM table'
  • This process cannot be undone
  • Not to be confused with DROP, for deleting columns and tables.