DML Precompiler Options › Dictionary Ready Override

Dictionary Ready Override

The DDLDML area is the main area of the dictionary accessed by the DML precompiler. Your application program can ready the DDLDML area using various usage mode options. The default mode is shared update usage. Shared update usage mode readies the DDLDML area for both retrieval and update. This mode also allows concurrently executing run units to ready the DDLDML area in shared update or shared retrieval usage mode. Your program can override the default usage mode by specifying either retrieval or protected update usage.

Syntax

►►─┬─ /*RETRIEVAL*/ ────────┬───────────────────────────────────────►◄
   └─ /*PROTECTED_UPDATE*/ ─┘

Begin this Syntax in column 2.

Parameters

RETRIEVAL

Readies the DDLDML area for retrieval only. It allows other concurrently executing run units to open the area in shared retrieval, shared update, protected retrieval, or protected update usage modes.

Note: If your program readies the DDLDML area for retrieval only, no program activity statistics can be logged.

PROTECTED_UPDATE

Readies the DDLDML area for both retrieval and update. It allows other concurrently executing run units to ready the area in retrieval usage mode only. The protected update usage mode prevents concurrent update of the area by run units executing in the same DC/UCF system.

Specify the dictionary ready override statement before all source input statements.