Difference between revisions of "DISPLAY INDEXES"
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* Production DBX file name | * Production DBX file name | ||
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and for each tag: | and for each tag: | ||
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* Type | * Type | ||
* Length | * Length | ||
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and for each open single index: | and for each open single index: | ||
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* Key | * Key | ||
* Index cache size | * Index cache size | ||
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The master index tag is flagged as such. | The master index tag is flagged as such. | ||
Revision as of 15:03, 28 April 2009
Class
Indexing
Purpose
Display index information about the current table
Syntax
DISPLAY INDEXES [TO FILE <.txt filename> | (<expC>)] | [TO PRINT]
See Also
CLOSE INDEX, COPY INDEXES, COPY TAG, CREATE VIEW, DB_PRINT, DELETE TAG, DBXDESCEND(), DESCEND(), DTOS(), FIND, LOOKUP(), LTOS(), MDX(), REINDEX, RLOOKUP(), SEEK, SEEK(), SET INDEX, SET ORDER, SET PAGELENGTH, SET PAGEWIDTH, SET PRINTER, STR(), STRZERO(), SYS(), TAG(), TAGCOUNT(), TAGNO(), USE
Description
The DISPLAY INDEXES command is used to display index information about the currently active table. Information is displayed for both production and single index files.
The DISPLAY INDEXES command displays the following information:
- Production DBX file name
and for each tag:
- Tag name
- Key
- Type
- Length
and for each open single index:
- Index file name
- Key
- Index cache size
The master index tag is flagged as such.
DISPLAY commands differ from LIST commands in that they pause every 17 lines until a key is pressed. You can cancel any further output at this point by pressing the [ABANDON] key. Where the output is sent to a file or printer, the pause is disabled.
| Keyword | Description |
|---|---|
| TO <file> | The display output will be sent to the specified file. The filename can be substituted with a <expC>, enclosed in round brackets, which returns a valid filename. If no file extension is specified, then ".txt" will be used. The command SET PAGELENGTH governs the output file pagination and SET PAGEWIDTH defines the width of each page. Page numbers are centered on the bottom of the page according to width. |
| TO PRINT | The display output will be sent to a printer. The TO PRINT option will default to a local printer unless the command SET PRINTER TO \\SPOOLER is issued. The print request will then be spooled to the system printer, which is defined by the environment variable DB_PRINT. |
Example
// Recital/4GL use example display indexes to file ind_info
Products
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
