DB Analyzer Parameter Statements
CA IDMS/DB Analyzer performs two basic functions: Statistics accumulation and report production. These two functions can be performed for any subschema by using a single PROCESS parameter statement.
The PROCESS statement can be used alone to generate a complete set of statistics and reports.
You can also limit or modify these functions by using three additional parameter statements: AREA, SET, and REPORT. These optional statements allow you to limit or modify the statistics collected, and to specify which reports you want generated.
The PROCESS statement initiates CA IDMS/DB Analyzer processing. It is a mandatory statement and must be entered first. By specifying a process and a subschema name, you can automatically analyze the entire database described by the subschema. Or, if you need to analyze only part of the database, you can specify explicitly the areas, sets, index sets and/or reports that you want to process.
You can use the PROCESS statement to:
- Request the accumulation of statistics, the production of reports, or both
- Specify the subschema to be analyzed
- Select either the AUTOMATIC or the EXPLICIT processing mode
- Request comparative reports
- Create a file of logically deleted record(s)(LDEL)
Before CA IDMS/DB Analyzer processes a database, you can check the syntax of your parameter statements by choosing the SYNTAX option in the PROCESS statement.
The SELECTION parameter of the PROCESS statement allows you to process either all of the database described by a subschema or only the parts of the database you specify. When you choose to process all of the database, you can also specify parts of it to be excluded from processing.
SELECTION=AUTOMATIC directs CA IDMS/DB Analyzer to process the entire database described by a subschema, except for those parts that you specify for exclusion. You can exclude specific areas, sets, SR8 sets, and/or reports.
SELECTION=EXPLICIT directs CA IDMS/DB Analyzer to process only the areas, sets, SR8 index sets, and/or reports specified by using the optional parameter statements.
The AREA, SET, and REPORT statements are optional. Their functions depend on the mode--AUTOMATIC or EXPLICIT--that you select in the PROCESS statement. Use of the optional statements is described in detail, separately for the AUTOMATIC mode and the EXPLICIT mode, after the description of the PROCESS statement in this section.
In the AUTOMATIC mode:
AREA Statementallows you to exclude an area from processing, to limit processing to a portion of an area, or to specify the page ranges used in reporting the distribution of characteristics across an area.
SET Statementis used to exclude a set type from processing, or to specify length ranges for reporting the distribution of set occurrence lengths. Use this statement to exclude SR8 (integrated index) sets, as well as non-index sets.
REPORT Statementis used to eliminate production of specific reports.
In the EXPLICIT mode:
AREA Statementallows you to include an area or part of an area in processing and to specify distribution page ranges.
SET Statementis used to include a set type in processing and to specify length distribution ranges. Use this statement to include SR8 (integrated index) sets, as well as non-index sets.
REPORT Statementis used to produce specific reports.