SQL Server Error Code – 1015 an aggregate cannot appear in an on clau
In this blog post, you’ll learn more about the SQL Server Error Code 1015 and the error message description that is shown
SQL Server Error Code
1015
SQL Server Error Description for the Code :1015
An aggregate cannot appear in an ON clause unless it is in a subquery contained in a HAVING clause or select list, and the column being aggregated is an outer reference.
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