Extract/Load
Option 4, Extract/Load, is used to extract segments from an IMS database to a sequential file and load records from a sequential file to an IMS database. When you use this option, a complete set or subset of segments within a database can be copied to another database. When records are extracted from a database that has a logical and/or application relationship to other databases, the related database records in the other databases can also be extracted, which ensures that all relationships are resolved when the segments are reloaded. In addition, after data is extracted from a file, the extracted data can be disguised to provide data security.
If you do not specify a sub-option on the Primary Option Menu, the Extract/Load Data Base Menu is displayed. If you specify a sub-option, this screen is skipped.
Extract/Load Data Base Menu
OPTION ===>
ENV: TEST - IMS ENVIRONMENT
1 DATA BASE EXTRACT - Extract from a data base to a sequential file
2 DATA BASE LOAD - Load from a sequential file to a data base
Enter 1 or 2 in the Option field, and press Enter. If you enter 1, the Data Base Extract - Data Base Specification Screen is displayed. If you enter 2, the screen shown on Data Base Load - Dataset Specification (Dynamic PSB) Screen is displayed. To exit the Extract/Load option, enter the END or RETURN primary command or a jump command.
The following commands are always available throughout the course of the extract/load conversation:
- RETURN will take you back to the Primary Option Menu.
- END will return you to the appropriate earlier menu.
- ENTER will advance to the next screen in the conversation.
This section provides information about the following topics: