Difference between revisions of "BOF()"

From Lianjapedia
Jump to: navigation, search
Line 1: Line 1:
 
==Purpose==
 
==Purpose==
 
Function to check if the record pointer is at the beginning of file
 
Function to check if the record pointer is at the beginning of file
 
  
 
==Syntax==
 
==Syntax==
 
BOF([<workarea | alias>])
 
BOF([<workarea | alias>])
 
  
 
==See Also==
 
==See Also==
 
[[ALIAS()]], [[DBF()]], [[EOF()]], [[FOUND()]], [[GOTO]], [[SELECT]], [[SELECT()]], [[SKIP]], [[USE]]
 
[[ALIAS()]], [[DBF()]], [[EOF()]], [[FOUND()]], [[GOTO]], [[SELECT]], [[SELECT()]], [[SKIP]], [[USE]]
 
  
 
==Description==
 
==Description==
 
The BOF() function returns .T. if an attempt is made to skip the record pointer before the first logical record of the currently selected table.  If the optional <workarea | alias> is specified, then the function will operate in the required location.
 
The BOF() function returns .T. if an attempt is made to skip the record pointer before the first logical record of the currently selected table.  If the optional <workarea | alias> is specified, then the function will operate in the required location.
 
  
 
==Example==
 
==Example==
Line 25: Line 21:
 
</code>
 
</code>
  
 
==Products==
 
Recital Server, Recital
 
 
[[Category:Documentation]]
 
[[Category:Documentation]]
 
[[Category:Functions]]
 
[[Category:Functions]]

Revision as of 11:38, 7 December 2012

Purpose

Function to check if the record pointer is at the beginning of file

Syntax

BOF([<workarea | alias>])

See Also

ALIAS(), DBF(), EOF(), FOUND(), GOTO, SELECT, SELECT(), SKIP, USE

Description

The BOF() function returns .T. if an attempt is made to skip the record pointer before the first logical record of the currently selected table. If the optional <workarea | alias> is specified, then the function will operate in the required location.

Example

use orders
? bof()
.F.
skip -1
? bof()
.T.