SQL UPDATE query to update columns in multiple tables using INNER & LEFT JOIN with GROUP BY query
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SQL UPDATE query to update columns in multiple tables using INNER & LEFT JOIN with GROUP BY query
https://www.plus2net.com/sql_tutorial/sql_update.php Updating second table by using data from first table. We have three columns with marks in three subjects ( student3 table ) , we will add these three subjects marks and update the same in another table having the same student id. Before this we will set all marks column value to 0 UPDATE ...
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