Analyzing DEFAULT schema & assigned Role for a Database
Hi All,
Following SQL query will list available roles in database and the default schema they are assigned to.
You can also check when it’s last modified.
–Query Start
Use <Your Database Name>
Go
SELECT
DEFAULT_SCHEMA_NAME AS [DEFAULT SCHEMA NAME],
TYPE_DESC AS [ROLE DESCRIPTION],
[NAME] AS [ASSIGNED ROLE OR USER],
CREATE_DATE AS [SCHEMA CREATION DATE],
MODIFY_DATE AS [SCHEMA MODIFICATION DATE]
FROM SYS.DATABASE_PRINCIPALS
ORDER BY
MODIFY_DATE DESC
GO
–Query End
There are also other fields/columns in SYS.DATABASE_PRINCIPALS table;
which you can use somewhere, so here is the detailed description of its columns.
| Column name | Data type | Description |
| name | sysname | Name of principal, unique within the database. |
| principal_id | int | ID of principal, unique within the database. |
| type | char(1) | Principal type: |
| S = SQL user | ||
| U = Windows user | ||
| G = Windows group | ||
| A = Application role | ||
| R = Database role | ||
| C = User mapped to a certificate | ||
| K = User mapped to an asymmetric key | ||
| type_desc | nvarchar(60) | Description of principal type. |
| SQL_USER | ||
| WINDOWS_USER | ||
| WINDOWS_GROUP | ||
| APPLICATION_ROLE | ||
| DATABASE_ROLE | ||
| CERTIFICATE_MAPPED_USER | ||
| ASYMMETRIC_KEY_MAPPED_USER | ||
| default_schema_name | sysname | Name to be used when SQL name does not specify schema. Null for principals not of type S, U, or A. |
| create_date | datetime | Time at which the principal was created. |
| modify_date | datetime | Time at which the principal was last modified. |
| owning_principal_id | int | ID of the principal that owns this principal. All principals except Database Roles must be owned by dbo. |
| sid | varbinary(85) | SID (Security Identifier) if the principal is defined external to the database (type S, U, and G). Otherwise, NULL. |
| is_fixed_role | bit | If 1, then this row represents an entry for one of the fixed database roles: db_owner, db_accessadmin, db_datareader, db_datawriter, db_ddladmin, db_securityadmin, db_backupoperator, db_denydatareader, db_denydatawriter. |
Trusted Source: http://msdn.microsoft.com/en-us/library/ms187328.aspx
Thanks, Khilit
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