Compatibility of Databases and DARs

PDMS DARs use the same database access routines as PDMS. For example, PDMS DARs version 11.6.0 uses the same version of program code to access MDBs as is used by PDMS version 11.6.0. PDMS DARs are therefore able to detect, in the same way as PDMS, when the databases are incompatible with the version of the program.

Upon entry to D3INIT or D3MMDB, the DARs initialization and MDB selection routines, the program will test for database compatibility and act in the same way as PDMS if an error is encountered. It will therefore not be possible for users to inadvertently use an incompatible version of DARs (for example, Mk12.0 DARs with Mk10.5 PDMS).

Each new major release of PDMS (Mk11.3.0, Mk11.4.0, Mk12.0 ) will include a compatible version of PDMS DARs.