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Asked: 2026-06-12T23:57:11+00:00

I found a piece of SQL code which uses *= as a conditional statement.

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I found a piece of SQL code which uses *= as a conditional statement. Can some one provide some hint about it?

SELECT  *
FROM     TABLE1 A,TABLE2 B
WHERE    A.ID *= B.ID
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1 Answer

  1. Editorial Team

    It’s an obsolete style LEFT JOIN.

    You should use this instead

     select * 
 from
     TABLE1 A
          left join TABLE2 B 
          on A.ID = B.ID

    You may also find this useful when updating your code

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