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Overview of the CA IDMS TOTAL Transparency › Support for Total › Total Features Supported

Total Features Supported

The transparency supports most Total DML statements that access and update the database. Almost all Total DML statements supported by the transparency translate directly to corresponding CA IDMS DML statements. The Total DML statements described in the following table are translated to CA IDMS, but with some variations in function. The variations are explained in the table.

Note: Total DML recovery and logging functions are not converted to CA IDMS/DB. CA IDMS/DB provides recovery utilities and journaling options that adequately replace these Total DML functions.

For this Total DML statement

CA IDMS TOTAL Transparency does the following:

CNTRL (purge)

Ignores the command

COMIT

Issues a COMMIT ALL

ENDLG

Issues a COMMIT

FREEX

Issues a COMMIT ALL

QMARK

Issues a COMMIT

QUIET

Issues a COMMIT

SINON and OPENX

 
  • Issues A BIND RUN UNIT statement
  • Issues BIND statements for all CA IDMS/DB record typesdescribed in the subschema
  • Issues a READY statement for all CA IDMS/DB database areas included in the subschema

After the runtime system processes a Total SINON or OPENX command, it will not reissue the CA IDMS/DB BIND/READY sequence.

When a SINON command is issued, the runtime interface performs the following actions:

  • Saves the name of the requesting task for use with a subsequent OPENX command
  • Loads the runtime control table (ETOTTBL) using the table name referenced by the DBMOD parameter of the SINON statement

CLOSX and SINOF

 

Issues a FINISH statement

FINISH releases all database areas (and therefore all database records) from program control. If a SINOF command is preceded by a CLOSX command, the runtime interface does not issue a FINISH in response to the SINOF command.

RQLOC (batch)

 

Accepts a key value from the Total application and returns a suitable DBKEY value. Note that for RQLOC, the module IDMSCALC is required. If IDMSCALC is not link edited to ETOTBINT, it is loaded the first time the RQLOC function is invoked.