Database Users

Database users can change data in the database using query tools, database applications or SQL statements. They can create and change database objects such as tables, views and indexes.

Database users can log on to the following database tools and programming interfaces:

Database Studio
SQL Studio, Web SQL Studio and SQLCLI (query tools)
Loader
ODBC, JDBC, SQLDBC interfaces

Note that database users cannot carry out administration tasks for which a DBM server logon is required.

Every database user belongs to a database user class. Database user classes have different authorization levels for the database.

Properties

SQL Properties of Database Users
Property	Description
`User Class`	`DBA` \| `RESOURCE` \| `STANDARD`
`Connection Mode`	`NOT EXCLUSIVE`: Allows the database user to open several database sessions simultaneously. `EXCLUSIVE`: Each database user can open only one database session. Caution This connection mode only exists still for historical reasons. Do not use it. Database users with this connection mode cannot work with Database Studio. End of the caution. `DISABLED`: The database user is locked and cannot open any database sessions.
`Session Timeout`	Time after which the database session is ended after user inactivity.
`Cost Warning`	Specifies the estimated `SELECT` cost value beyond which the user receives a warning. In this case, the user is asked whether he or she really wants to execute the SQL statement.
`Cost Limit`	Specifies the estimated `SELECT` cost value beyond which the SQL statement is not executed. This value must be greater than the `Cost Warning` value.
`Default Code Attribute`	Default code attribute for creating new columns `DEFAULT`: The default code attribute is defined by the `DefaultCodePage` database parameter. `ASCII` `UNICODE`

Database User Classes
Name	Properties
DBA	Database administrators Creation of `RESOURCE` and `STANDARD` database users Definition of database objects Granting of all or part of privileges for these database objects to other database users
RESOURCE	Definition of data and database procedures Granting of privileges for these database objects to other database users
STANDARD	Access to data and database procedures that were defined by other database users and for which the user has been granted privileges Definition of view tables, synonyms and temporary tables

Managing Database Users

The database system administrator can create database users of any database user class. Database users of the DBA user class can create, change, and delete database users of the RESOURCE and STANDARD classes.

More information:

Database Studio, Creating Database Users, Changing the Properties of Database Users, Deleting Database Users
SQL Reference Manual, CREATE USER Statement, ALTER USER Statement, ALTER PASSWORD Statement, DROP USER Statement
Database Administration in CCMS, User Data

You can assign special roles to database users in the SAP system. More information:

Database Administration in CCMS, Prerequisites

Privileges for Database Objects

Database users can be owners of database objects, such as tables or schemas. As owner of a database object, a database user can assign privileges for the object to other database users.

Privilege	Object	Privilege Allows Database Users to
`ALTER`	Table	Use the `ALTER TABLE` statement More information: Privilege Specification (priv_spec)
`CREATEIN`	Schema	Create database objects in the specified schema More information: Privilege Specification for a Schema (schema_priv_spec)
`DELETE`	Table	Delete rows in the specified tables More information: Privilege Specification (priv_spec)
`DROPIN`	Schema	Delete database objects in the specified schema More information: Privilege Specification for a Schema (schema_priv_spec)
`EXECUTE`	Database procedure Database function	Execute the database procedure or the database function More information: GRANT Statement (grant_statement)
`INDEX`	Table	Use the `CREATE INDEX`, `ALTER INDEX` and `DROP INDEX` statements More information: Privilege Specification (priv_spec)
`INSERT`	Table	Insert rows in the specified tables More information: Privilege Specification (priv_spec)
`REFERENCES`	Table	Specify the specified table as a referenced table in a column definition or referential `CONSTRAINT` definition More information: Privilege Specification (priv_spec)
`SELECT`	Sequence	Use the specified sequences More information: GRANT Statement (grant_statement)
`SELECT`	Table or parts of a table	Select entire rows or parts of rows in the specified tables More information: Privilege Specification (priv_spec)
`SELUPD`	Table or parts of a table	The `SELECT` and `UPDATE` privileges are granted. More information: Privilege Specification (priv_spec)
`UPDATE`	Table or parts of a table	Change entire rows or parts of rows in the specified tables More information: Privilege Specification (priv_spec)

More information: SQL Reference Manual, GRANT Statement (grant_statement)

More Information

Conventions for User Names and Passwords