DB2 10.5 for Linux, UNIX, and Windows

REVOKE (schema privileges) statement

This form of the REVOKE statement revokes the privileges on a schema.

Invocation

This statement can be embedded in an application program or issued through the use of dynamic SQL statements. It is an executable statement that can be dynamically prepared only if DYNAMICRULES run behavior is in effect for the package (SQLSTATE 42509).

Authorization

The privileges held by the authorization ID of the statement must include ACCESSCTRL or SECADM authority.

Syntax


           .-,------------.                           
           V              |                           
>>-REVOKE----+-ALTERIN--+-+--ON SCHEMA--schema-name------------->
             +-CREATEIN-+                             
             '-DROPIN---'                             

         .-,---------------------------------.               
         V                                   |  .-BY ALL-.   
>--FROM----+-+-------+--authorization-name-+-+--+--------+-----><
           | +-USER--+                     |                 
           | +-GROUP-+                     |                 
           | '-ROLE--'                     |                 
           '-PUBLIC------------------------'

Description

ALTERIN

Revokes the privilege to alter or comment on objects in the schema.

CREATEIN

Revokes the privilege to create objects in the schema.

DROPIN

Revokes the privilege to drop objects in the schema.

ON SCHEMA schema-name

Specifies the name of the schema on which privileges are to be revoked.

FROM

Indicates from whom the privileges are revoked.

USER: Specifies that the authorization-name identifies a user.
GROUP: Specifies that the authorization-name identifies a group name.
ROLE: Specifies that the authorization-name identifies a role name.
authorization-name,...: Lists the authorization IDs of one or more users, groups, or roles.
The list of authorization IDs cannot include the authorization ID of the user issuing the statement (SQLSTATE 42502).
PUBLIC: Revokes the privileges from PUBLIC.

BY ALL

Revokes each named privilege from all named users who were explicitly granted those privileges, regardless of who granted them. This is the default behavior.

Rules

For each authorization-name specified, if neither USER, GROUP, nor ROLE is specified, then:
- For all rows for the specified object in the SYSCAT.SCHEMAAUTH catalog view where the grantee is authorization-name:
  - If all rows have a GRANTEETYPE of 'U', USER is assumed.
  - If all rows have a GRANTEETYPE of 'G', GROUP is assumed.
  - If all rows have a GRANTEETYPE of 'R', ROLE is assumed.
  - If all rows do not have the same value for GRANTEETYPE, an error is returned (SQLSTATE 56092).

Notes

Revoking a specific privilege does not necessarily revoke the ability to perform the action. A user can proceed with a task if other privileges are held by PUBLIC, a group, or a role, or if the user holds a higher level authority such as DBADM.

Examples

Example 1: Given that USER4 is only a user and not a group, revoke the privilege to create objects in schema DEPTIDX from the user USER4.
```
   REVOKE CREATEIN ON SCHEMA DEPTIDX FROM USER4
```
Example 2: Revoke the privilege to drop objects in schema LUNCH from the user CHEF and the group WAITERS.
```
   REVOKE DROPIN ON SCHEMA LUNCH
     FROM USER CHEF, GROUP WAITERS
```