给定一个列名，如何找到MySQL数据库中的哪些表包含该列？

使用COLUMN_NAME查找数据库中的哪个表包含特定列。让我们首先创建一个表-

mysql> create table DemoTable
   -> (
   -> CustomerId int,
   -> CustomerName varchar(20),
   -> CustomerCountryName varchar(100)
   -> );

以下是查找在哪些表中存在特定列“'CustomerCountryName'”的查询-

mysql> select *from information_schema.columns WHERE COLUMN_NAME =
'CustomerCountryName';

输出结果

这将产生以下输出-

+---------------+--------------+--------------+---------------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+--------------------+-----------------+--------------+------------+-------+---------------------------------+----------------+-----------------------+-------+
| TABLE_CATALOG | TABLE_SCHEMA | TABLE_NAME  | COLUMN_NAME          |ORDINAL_POSITION  | COLUMN_DEFAULT | IS_NULLABLE | DATA_TYPE |CHARACTER_MAXIMUM_LENGTH | CHARACTER_OCTET_LENGTH |NUMERIC_PRECISION | UMERIC_SCALE | DATETIME_PRECISION |CHARACTER_SET_NAME | COLLATION_NAME | COLUMN_TYPE | COLUMN_KEY | EXTRA | PRIVILEGES | COLUMN_COMMENT | GENERATION_EXPRESSION | SRS_ID |
+---------------+--------------+--------------+---------------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+--------------------+-----------------+--------------+------------+-------+---------------------------------+----------------+-----------------------+-------+
| def | sample | demotable189 | CustomerCountryName | 4 | NULL |YES | varchar | 100 | 300 | NULL | NULL | NULL | utf8 | utf8_general_ci | varchar(100) | | |select,insert,update,references | | | NULL |
| def | web | DemoTable | CustomerCountryName | 4 | NULL |YES | varchar | 20 | 60 | NULL | NULL |NULL | utf8 | utf8_unicode_ci | varchar(20) | | |select,insert,update,references | | | NULL |
| def | web | DemoTable | CustomerCountryName | 3 | NULL |YES | varchar | 100 | 300 | NULL | NULL |NULL | utf8 | utf8_unicode_ci | varchar(100) | | |select,insert,update,references | | | NULL |
+---------------+--------------+--------------+---------------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+--------------------+-----------------+--------------+------------+-------+---------------------------------+----------------+-----------------------+-------+
3 rows in set (0.68 sec)

在上方，您可以看到3表中存在“ CustomerCountryName”列。