3

hello in mysql these are the columns in the INFORMATION_SCHEMA.SCHEMA_PRIVILEGES table

+----------------+--------------+------+-----+---------+-------+
| Field          | Type         | Null | Key | Default | Extra |
+----------------+--------------+------+-----+---------+-------+
| GRANTEE        | varchar(81)  | NO   |     |         |       |
| TABLE_CATALOG  | varchar(512) | YES  |     | NULL    |       |
| TABLE_SCHEMA   | varchar(64)  | NO   |     |         |       |
| PRIVILEGE_TYPE | varchar(64)  | NO   |     |         |       |
| IS_GRANTABLE   | varchar(3)   | NO   |     |         |       |
+----------------+--------------+------+-----+---------+-------+

so i am wondering what all those columns stands for i know what the third and fourth column stands for but i don't have any idea what the other columns do coul anyone explain me them bit? i have been searching on the net but i haven't found anythin only some example values for the column.

1 Answer 1

5

According to the MySQL Documentation, these values are just copied from the mysql.db table. All this does is provide an alternative way to find all users who have been granted a database-level privilege.

Here is a breakdown of what each column represents

  • GRANTEE is mysql user that had the privilege granted (user@host from mysql.db)
  • TABLE_CATALOG is a field defined for this table to be SQL-92 compatiple
  • TABLE_SCHEMA is the database whose grants are allowed (db column in mysql.db)
  • PRIVILEGE_TYPE is the individual database-level privilege granted in mysql.db
    • Select_priv
    • Insert_priv
    • Update_priv
    • Delete_priv
    • Create_priv
    • Drop_priv
    • References_priv
    • Index_priv
    • Alter_priv
    • Create_tmp_table_priv
    • Lock_tables_priv
    • Create_view_priv
    • Show_view_priv
    • Create_routine_priv
    • Event_priv
    • Trigger_priv
  • IS_GRANTABLE tells you if the user was defined WITH GRANTS (Grant_priv column of mysql.db) . In other words, the value tells whether or not the mysql user can give away the specific database-level privilege to other mysql users
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