query errors

gudii9 used Ask the Experts™
Msg 1013, Level 16, State 1, Line 1
The objects "XYZ" and "ABC" in the FROM clause have the same exposed names. Use correlation names to distinguish them.

wondering what it means by above error

please advise
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Database Analyst
That message tells you that you are using the exact same object twice or more in a WHERE/JOIN clause and you MUST use an alias name on each instance IF you really need to use that same object multiple times in the WHERE/JOIN's as shown here for example: https://www.sqlservercentral.com/Forums/1588361/FROM-clause-have-the-same-exposed-names-Reportbuilder
Jim HornSQL Server Data Dude
Most Valuable Expert 2013
Author of the Year 2015
Just for kicks and giggles please post the T-SQL that executed that generated this error.  Then click on the error message and watch the cursor jump to the offending line, and then tell us what line that is.

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