Setting Default Options for Your Functions › Model Values Used in Building Functions › YNLLUPD

YNLLUPD

The Null Update Suppression (YNLLUPD) model value sets the default for whether CHGOBJ functions update or release the database record if the record was not changed. This can be overridden with a matching function option. The shipped default is *NO.

• *NO

  CHGOBJ functions do not check whether the record has changed before updating the database. In other words, null update suppression logic is not generated in CHGOBJ functions.

• *AFTREAD

  CHGOBJ checks whether the record changed between the After Data Read and Data Update user points.

• *YES

  CHGOBJ checks whether the record changed both after the Data Read and after the Data Update’ user points.

For more information about:

• CHGOBJ database function, refer to the chapter, "Defining Functions"
• Suppressing null updates, see Understanding Contexts, PGM in the chapter "Modifying Action Diagrams"