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ABENAMDP_DB_CONNECTIONS - AMDP DB CONNECTIONS

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- Database Connections

An AMDP method is always implemented on the standard database. By default, the call is made using the standard connection. An optional service connection can be specified for an AMDP procedure implementation.

To specify the database connection explicitly, an input parameter with the predefined name connection can be declared for an AMDP procedure implementation. This parameter must be of type DBCON_NAME. When the AMDP method is called, the following values can be passed to the parameter to specify the database connection:

• When the initial value or the value "DEFAULT" is passed, the standard connection is used.

• When a name "R/3*name" is passed, which consists of the prefix "R/3*" (uppercase characters) and a user-defined name "name" (case sensitive), a service connection of this name to the standard database is used. The names "R/3*AMDP_SYNC" and "R/3*AMDP_ADBC" are exceptions. They are used by the AMDP framework itself.

All other names raise an exception.

Notes

• For detailed information about database connections, see database connections.

• The parameter connection cannot be used to implement the AMDP method.

• The input parameter connection cannot be declared for an AMDP function implementation. This applies in particular to the parameter list of a CDS table function.

• The parameter connection cannot be used to specify connections to databases other than the standard database.

• Service connections to the standard database are useful for performing operations in a database LUW that is independent of the LUW of the standard connection.

• The statement CALL DATABASE PROCEDURE or ADBC methods can be used to call database procedures on databases other than the standard database. This involves creating an object of the class CL_SQL_STATEMENT while passing an object of the class CL_SQL_CONNECTION and using the method EXECUTE_PROCEDURE.

AMDP Method with Specified Service Connection

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