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Find a specific column in all the tables in a database?
For this, use COLUMN_NAME and set LIKE with that specific column name. Let us find a specific column in an unknown table in a database −
mysql> SELECT TABLE_NAME, COLUMN_NAME, DATA_TYPE, IS_NULLABLE, COLUMN_DEFAULT -> FROM INFORMATION_SCHEMA.COLUMNS -> WHERE column_name LIKE '%StudentName%' -> AND table_schema = 'web';
Output
This will produce the following output −
+-------------------+-------------+-----------+-------------+----------------+ | TABLE_NAME | COLUMN_NAME | DATA_TYPE | IS_NULLABLE |COLUMN_DEFAULT | +-------------------+-------------+-----------+-------------+----------------+ | demotable215 | StudentName | varchar | YES | NULL | | demotable221 | StudentName | varchar | YES | NULL | | demotable224 | StudentName | varchar | YES | NULL | | demotable234 | StudentName | varchar | YES | NULL | | demotable269 | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | NO | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | json | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | NO | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | DemoTable | StudentName | varchar | YES | NULL | | view_DemoTable | StudentName | varchar | YES | NULL | +-------------------+-------------+-----------+-------------+----------------+ 19 rows in set (0.07 sec)
Above displays all the tables with a specific column “StudentName”.
Updated on: 30-Jun-2020
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