Granting a user access to your database Changing a user's password Adding groups to a user Removing groups from a user Removing a user Listing users Creating a role Granting a role Revoking a role Dropping a role Granting database authorization Revoking database authorization

Granting and revoking privileges for RDS for Db2

Users gain access to databases through membership in groups that are attached to databases.

Use the following procedures to grant and revoke privileges to control access to your database.

These procedures use IBM Db2 CLP running on a local machine to connect to an RDS for Db2 DB instance. Be sure to catalog the TCPIP node and the database to connect to your RDS for Db2 DB instance running on your local machine. For more information, see Connecting to your Amazon RDS for Db2 DB instance with IBM Db2 CLP.

Granting a user access to your database

To grant a user access to your database

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
This command produces output similar to the following example:
```
Database Connection Information
    
Database server        = DB2/LINUXX8664 11.5.8.0
SQL authorization ID   = ADMIN
Local database alias   = RDSADMIN
```
Add a user to your authorization list by calling rdsadmin.add_user. For more information, see rdsadmin.add_user.
```
db2 "call rdsadmin.add_user(
    'username',
    'password',
    'group_name,group_name')"
```
(Optional) Add additional groups to the user by calling rdsadmin.add_groups. For more information, see rdsadmin.add_groups.
```
db2 "call rdsadmin.add_groups(
    'username',
    'group_name,group_name')"
```

Confirm the authorities that are available to the user. In the following example, replace rds_database_alias, master_user, and master_password with your own information. Also, replace username with the user's username.


db2 terminate
db2 connect to rds_database_alias user master_user using master_password
db2 "SELECT SUBSTR(AUTHORITY,1,20) AUTHORITY, D_USER, D_GROUP, D_PUBLIC
       FROM TABLE (SYSPROC.AUTH_LIST_AUTHORITIES_FOR_AUTHID ('username', 'U') ) AS T
       ORDER BY AUTHORITY"

This command produces output similar to the following example:


AUTHORITY            D_USER D_GROUP D_PUBLIC
-------------------- ------ ------- --------
ACCESSCTRL           N      N       N
BINDADD              N      N       N
CONNECT              N      N       N
CREATETAB            N      N       N
CREATE_EXTERNAL_ROUT N      N       N
CREATE_NOT_FENCED_RO N      N       N
CREATE_SECURE_OBJECT N      N       N
DATAACCESS           N      N       N
DBADM                N      N       N
EXPLAIN              N      N       N
IMPLICIT_SCHEMA      N      N       N
LOAD                 N      N       N
QUIESCE_CONNECT      N      N       N
SECADM               N      N       N
SQLADM               N      N       N
SYSADM               *      N       *
SYSCTRL              *      N       *
SYSMAINT             *      N       *
SYSMON               *      N       *
WLMADM               N      N       N

Grant the RDS for Db2 roles ROLE_NULLID_PACKAGES, ROLE_TABLESPACES, and ROLE_PROCEDURES to the group that you added the user to. For more information, see Amazon RDS for Db2 default roles.

Note
We create RDS for Db2 DB instances in RESTRICTIVE mode. Therefore, the RDS for Db2 roles ROLE_NULLID_PACKAGES, ROLE_TABLESPACES, and ROLE_PROCEDURES grant execute privileges on NULLID packages for IBM Db2 CLP and Dynamic SQL. These roles also grant user privileges on tablespaces.
1. Connect to your Db2 database. In the following example, replace database_name, master_user, and master_password with your own information.
```
db2 connect to database_name user master_user using master_password
```
2. Grant the role ROLE_NULLED_PACKAGES to a group. In the following example, replace group_name with the name of the group that you want to add the role to.
```
db2 "grant role ROLE_NULLID_PACKAGES to group group_name"
```
3. Grant the role ROLE_TABLESPACES to the same group. In the following example, replace group_name with the name of the group that you want to add the role to.
```
db2 "grant role ROLE_TABLESPACES to group group_name"
```
4. Grant the role ROLE_PROCEDURES to the same group. In the following example, replace group_name with the name of the group that you want to add the role to.
```
db2 "grant role ROLE_PROCEDURES to group group_name"
```
Grant connect, bindadd, createtab, and IMPLICIT_SCHEMA authorities to the group that you added the user to. In the following example, replace group_name with the name of the second group that you added the user to.
```
db2 "grant usage on workload SYSDEFAULTUSERWORKLOAD to public"
db2 "grant connect, bindadd, createtab, implicit_schema on database to group group_name"
```
Repeat steps 4 through 6 for each additional group that you added the user to.
Test the user's access by connecting as the user, creating a table, inserting values into the table, and returning data from the table. In the following example, replace rds_database_alias, username, and password with the name of the database and the user's username and password.
```
db2 connect to rds_database_alias user username using password
db2 "create table t1(c1 int not null)"
db2 "insert into t1 values (1),(2),(3),(4)"
db2 "select * from t1"
```

Changing a user's password

To change a user's password

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
Change the password by calling rdsadmin.change_password. For more information, see rdsadmin.change_password.
```
db2 "call rdsadmin.change_password(
    'username',
    'new_password')"
```

Adding groups to a user

To add groups to a user

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
Add groups to a user by calling rdsadmin.add_groups. For more information, see rdsadmin.add_groups.
```
db2 "call rdsadmin.add_groups(
    'username',
    'group_name,group_name')"
```

Removing groups from a user

To remove groups from a user

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
Remove groups by calling rdsadmin.remove_groups. For more information, see rdsadmin.remove_groups.
```
db2 "call rdsadmin.remove_groups(
    'username',
    'group_name,group_name')"
```

Removing a user

To remove a user from the authorization list

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
Remove a user from your authorization list by calling rdsadmin.remove_user. For more information, see rdsadmin.remove_user.
```
db2 "call rdsadmin.remove_user('username')"
```

Listing users

To list users on an authorization list, call the rdsadmin.list_users stored procedure. For more information, see rdsadmin.list_users.


db2 "call rdsadmin.list_users()"

Creating a role

You can use the rdsadmin.create_role stored procedure to create a role.

To create a role

Connect to the rdsadmin database. In the following example, replace master_username and master_password with your information.
```
db2 connect to rdsadmin user master_username using master_password
```
Set Db2 to output content.
```
db2 set serveroutput on 
```

Create a role. For more information, see rdsadmin.create_role.


db2 "call rdsadmin.create_role(
    'database_name',
    'role_name')"

Set Db2 to not output content.
```
db2 set serveroutput off
```

Granting a role

You can use the rdsadmin.grant_role stored procedure to assign a role to a role, user, or group.

To assign a role

Connect to the rdsadmin database. In the following example, replace master_username and master_password with your information.
```
db2 connect to rdsadmin user master_username using master_password
```
Set Db2 to output content.
```
db2 set serveroutput on 
```

Assign a role. For more information, see rdsadmin.grant_role.


db2 "call rdsadmin.grant_role(
    'database_name',
    'role_name',
    'grantee',
    'admin_option')"

Set Db2 to not output content.
```
db2 set serveroutput off
```

Revoking a role

You can use the rdsadmin.revoke_role stored procedure to revoke a role from a role, user, or group.

To revoke a role

Connect to the rdsadmin database. In the following example, replace master_username and master_password with your information.
```
db2 connect to rdsadmin user master_username using master_password
```

Revoke a role. For more information, see rdsadmin.revoke_role.


db2 "call rdsadmin.revoke_role(
    ?,
    'database_name',
    'role_name',
    'grantee')"

Dropping a role

You can use the rdsadmin.drop_role stored procedure to drop a role.

To drop a role

Connect to the rdsadmin database. In the following example, replace master_username and master_password with your information.
```
db2 connect to rdsadmin user master_username using master_password
```

Drop a role. For more information, see rdsadmin.drop_role.


db2 "call rdsadmin.drop_role(
    ?,
    'database_name',
    'role_name')"

Granting database authorization

The master user, who has DBADM authorization, can grant DBADM, ACCESSCTRL, or DATAACCESS authorization to a role, user, or group.

To grant database authorization

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
Grant a user access by calling rdsadmin.dbadm_grant. For more information, see rdsadmin.dbadm_grant.
```
db2 "call rdsadmin.dbadm_grant(
    ?,
    'database_name,
    'authorization',
    'grantee')"
```

Example use case

The following procedure walks you through creating a role, granting DBADM authorization to the role, assigning the role to a user, and granting the role to a group.

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
Create a role called PROD_ROLE for a database called TESTDB. For more information, see rdsadmin.create_role.
```
db2 "call rdsadmin.create_role(
    'TESTDB',
    'PROD_ROLE')"
```
Assign the role to a user called PROD_USER. The PROD_USER is given admin authorization to assign roles. For more information, see rdsadmin.grant_role.
```
db2 "call rdsadmin.grant_role(
    ?,
    'TESTDB',
    'PROD_ROLE',
    'USER PROD_USER',
    'Y')"
```
(Optional) Provide additional authorization or privileges. The following example grants DBADM authorization to a role named PROD_ROLE for a database called FUNDPROD. For more information, see rdsadmin.dbadm_grant.
```
db2 "call rdsadmin.dbadm_grant(
    ?,
    'FUNDPROD',
    'DBADM',
    'ROLE PROD_ROLE')"
```
Terminate your session.
```
db2 terminate
```
Connect to the TESTDB database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to TESTDB user master_username using master_password
```

Add more authorizations to the role.


db2 "grant connect, implicit_schema on database to role PROD_ROLE"

Grant the role PROD_ROLE to a group.


db2 "grant role PROD_ROLE to group PRODGRP"

Users who belong to the group PRODGRP can now perform actions such as connecting to the TESTDB database, creating tables, or creating schemas.

Revoking database authorization

The master user, who has DBADM authorization, can revoke DBADM, ACCESSCTRL, or DATAACCESS authorization from a role, user, or group.

To revoke database authorization

Connect to the rdsadmin database using the master username and master password for your RDS for Db2 DB instance. In the following example, replace master_username and master_password with your own information.
```
db2 connect to rdsadmin user master_username using master_password
```
Revoke user access by calling rdsadmin.dbadm_revoke. For more information, see rdsadmin.dbadm_revoke.
```
db2 "call rdsadmin.dbadm_revoke(
    ?,
    'database_name,
    'authorization',
    'grantee')"
```

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System tasks

Attaching to the remote DB instance