Difference between revisions of "SCAN"
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==Class== | ==Class== | ||
Applications | Applications | ||
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<code lang="recital"> | <code lang="recital"> | ||
scan all for code = "HMT" | scan all for code = "HMT" | ||
| − | display name, address | + | display name, address |
endscan | endscan | ||
</code> | </code> | ||
Revision as of 13:02, 26 May 2009
Class
Applications
Purpose
Perform list of commands interactively
Syntax
SCAN [<scope>] [FOR <condition>] [WHILE <condition>]
[EXIT]
[LOOP]
ENDSCAN
See Also
CONTINUE, DO WHILE, IF, LOCATE
Description
The SCAN ... ENDSCAN command executes a list of commands repeatedly for a specified selection of records while an optionally specified condition is true, or until an EXIT is encountered. The optional LOOP keyword forces control to the beginning of the SCAN.
The SCAN...ENDSCAN command can be used to reduce the programming involved in a LOCATE ... DO WHILE ... CONTINUE construct.
Example
scan all for code = "HMT" display name, address endscan
Products
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
