The DB-Required option is used in data objects that need to support both a connected and disconnected mode. Specifying DB-Required wraps the code block in a conditional preprocessor directive allowing it to be excluded from the compilation conditionally.

Data aware objects (SDO, SBO, and Data Logic Procedures) are automatically created with a client version and full (server) version, where the client version defines the preprocessor directive that excludes all DB-Required code blocks.

The DB-Required setting must be specified when a code block contains database field or table references that require the data object to be connected to appropriate databases at run-time in order for the code block to execute. This will ensure that this code is excluded from the client proxy r-code, All code blocks that are not DB-Required, are compiled into both r-code files.
Note: In Progress Developer Studio for OpenEdge new internal procedures and functions are not DB-Required by default. This is different from the standalone AppBuilder, which default to add the DB-Required option to new procedures and functions.

To change a procedure or function's DB-Required setting:

  1. From the Outline view, select an internal function or procedure.
  2. Toggle the DB-Required option in the view.
This adds or removes the DB-Required block generated for the selected function or procedure, depending on the toggle option you have selected on the context menu.