在数据库的所有表中查找特定列?
mysqlmysqli database更新于 2025/5/27 17:16:17
为此，请使用 COLUMN_NAME 并使用该特定列名称设置 LIKE。让我们在数据库中的未知表中查找特定列 −
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';
输出
这将产生以下输出 −
+-------------------+-------------+-----------+-------------+----------------+ | 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)
上面显示了具有特定列"StudentName"的所有表格。
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mysql 参考教程 - 该教程包含有关 mysql 的更多信息:https://www.cainiaomax.com/mysql/
