Difference between revisions of "DBRELATION()"
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==Purpose== | ==Purpose== | ||
Function to return table-linking expression | Function to return table-linking expression | ||
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==Syntax== | ==Syntax== | ||
DBRELATION(<expN>) | DBRELATION(<expN>) | ||
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==See Also== | ==See Also== | ||
| − | + | [[CREATE VIEW]], [[DBRSELECT()]], [[RELATION()]], [[SET RELATION]], [[TARGET()]], [[USE]] | |
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==Description== | ==Description== | ||
The DBRELATION() function is synonymous with the RELATION() function. The DBRELATION() function returns the linking expression of a specified relation in the current workarea. The <expN> specifies the position of the desired linking expression from the list of previously defined relations. The DBRELATION() function always returns a character string in lower case. If there is no linking expression defined for the <expN> selected a null string will be returned. | The DBRELATION() function is synonymous with the RELATION() function. The DBRELATION() function returns the linking expression of a specified relation in the current workarea. The <expN> specifies the position of the desired linking expression from the list of previously defined relations. The DBRELATION() function always returns a character string in lower case. If there is no linking expression defined for the <expN> selected a null string will be returned. | ||
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==Example== | ==Example== | ||
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</code> | </code> | ||
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[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
Latest revision as of 10:58, 9 February 2012
Contents
Purpose
Function to return table-linking expression
Syntax
DBRELATION(<expN>)
See Also
CREATE VIEW, DBRSELECT(), RELATION(), SET RELATION, TARGET(), USE
Description
The DBRELATION() function is synonymous with the RELATION() function. The DBRELATION() function returns the linking expression of a specified relation in the current workarea. The <expN> specifies the position of the desired linking expression from the list of previously defined relations. The DBRELATION() function always returns a character string in lower case. If there is no linking expression defined for the <expN> selected a null string will be returned.
Example
use shows in 2 index pcode use patrons in 1 set relation to patron_code into shows ? dbrelation(1) patron_code ? target(1) 2
