MODIFY dbtab

Syntax

MODIFY target FROM source.

Effect

The MODIFY statement inserts one or several lines specified in source in the database table specified in target, or overwrites existing lines.

System fields

The MODIFY statement sets the values of the sy-subrc and sy-dbcnt system fields.

sy-subrc	Meaning
0	All lines were inserted or changed.
4	At least one line could not be processed as there is already a line with the same unique name secondary index in the database table.

The MODIFY statement sets sy-dbcnt to the number of processed lines.

Note

The changes are finally transferred to the database table with the next database commit. Up to that point, they can be reversed with a database rollback.

The MODIFY statement sets a database lock until the next database commit or database rollback; incorrect usage can result in a deadlock kommen kann.
The number of rows that can be inserted into or changed in the tables of a database within a database LUW is restricted database-specifically by the fact that a database system can only manage a limited amount of locks and data in the rollback area.