`information_schema.key_column_usage.table_name`

mysql

type: VARCHAR NOT NULL

5.7-8

type: NULL

Note:

Table name of the column constraint.

5.1-10.8

type: VARCHAR NOT NULL

Note:

Table name of the column constraint.

type: VARCHAR(64) NOT NULL

Note:

The name of the table with constraints.

4-6.1

type: SQL_IDENTIFIER NULL

Note:

Name of the table that contains the column that is restricted by this constraint

10-15

type: SQL_IDENTIFIER

Note:

Name of the table that contains the column that is restricted by this constraint

8.2-9.6

Note:

Name of the table that contains the column that is restricted by some constraint

7.4-8.1

type: unknown

Note:

Name of the constrained table.

1-21.2

type: NVARCHAR(128) NULL

Note:

Table name.