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Database Conversion Phase › Steps Of The Database Conversion Phase

Steps Of The Database Conversion Phase

The process for converting a Total database to a CA IDMS/DB database involves the following steps:

  1. Generate the data definitions and load program using the transparency generator ETOTMAIN
  2. Compile the generated schema, using the schema compiler IDMSCHEM; this stores the schema description in the dictionary
  3. Prepare the physical database description by:
    1. Submitting physical DDL statements to the CA IDMS Command Facility (IDMSBCF)
    2. Generating database name table and DMCL load modules
    3. Punching the database name table and DMCL load modules using the PUNCH utility statement
    4. Linking the resulting object modules to a load library
  4. Prepare the subschema by:
    1. Compiling the generated subschema using the subschema compiler IDMSUBSC
    2. Punching the subschema load module
    3. Linking the subschema to a load library
  5. Initialize the CA IDMS/DB database using the FORMAT utility statement
  6. Unload the Total database using CSITULOD
  7. Load the CA IDMS/DB database using the customized transparency loader ETOTLOAD or a user-written load program

These conversion steps are discussed in this chapter.

For more information about z/OS JCL, see z/OS Job Control Language. For more information about z/VSE JCL, see z/VSE Job Control Language.