REC=: Difference between revisions
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The optional "REC=num-expr" clause is used to position the pointer to a specified record number before reading. After the numeric expression (usually a simple numeric variable or constant) is evaluated and rounded to an integer, the system reads that record number. If "REC = num-expr" is not specified, the system sequentially reads the next active record. | The optional "REC=num-expr" clause is used to position the pointer to a specified record number before reading. After the numeric expression (usually a simple numeric variable or constant) is evaluated and rounded to an integer, the system reads that record number. If "REC = num-expr" is not specified, the system sequentially reads the next active record. | ||
Used with internal files opened for RELATIVE or KEYED processing or with external files opened for RELATIVE access: | Used with internal files opened for RELATIVE or KEYED processing or with external files opened for RELATIVE access. Relevant statements are: | ||
*[[Read file|Read]] | *[[Read file|Read]] | ||
*[[Write]] | *[[Write]] | ||
*[[Delete Statement|Delete]] | |||
<noinclude> | <noinclude> | ||
[[Category:All Parameters]] | [[Category:All Parameters]] | ||
</noinclude> | </noinclude> | ||
Revision as of 21:05, 30 July 2013
The optional "REC=num-expr" clause is used to position the pointer to a specified record number before reading. After the numeric expression (usually a simple numeric variable or constant) is evaluated and rounded to an integer, the system reads that record number. If "REC = num-expr" is not specified, the system sequentially reads the next active record.
Used with internal files opened for RELATIVE or KEYED processing or with external files opened for RELATIVE access. Relevant statements are: