Difference between revisions of "SELECT()"
From Lianjapedia
Yvonne.milne (Talk | contribs) |
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==Purpose== | ==Purpose== | ||
| − | Function to return the current workarea number | + | Function to return the current or specified cursor/workarea number |
==Syntax== | ==Syntax== | ||
| − | SELECT([<alias>]) | + | SELECT([<alias> | <expN>]) |
==See Also== | ==See Also== | ||
| Line 10: | Line 10: | ||
==Description== | ==Description== | ||
The SELECT() function returns the number of the currently selected workarea. If the optional <alias> is specified, the SELECT() function returns the workarea number for that alias. If the <alias> specified does not exist, the SELECT() function will return a 0. | The SELECT() function returns the number of the currently selected workarea. If the optional <alias> is specified, the SELECT() function returns the workarea number for that alias. If the <alias> specified does not exist, the SELECT() function will return a 0. | ||
| + | Specifying 0 as <expN> returns the current cursor/workarea number, specifying 1 as <expN> returns the highest available empty cursor/workarea number. | ||
==Example== | ==Example== | ||
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? select ("prefixes") | ? select ("prefixes") | ||
3 | 3 | ||
| + | ? select(0) | ||
| + | 3 | ||
| + | ? select(1) | ||
| + | 100 | ||
// Another Example | // Another Example | ||
Revision as of 08:40, 30 May 2013
Contents
Purpose
Function to return the current or specified cursor/workarea number
Syntax
SELECT([<alias> | <expN>])
See Also
ALIAS(), DBF(), SELECT, USE, WORKAREA()
Description
The SELECT() function returns the number of the currently selected workarea. If the optional <alias> is specified, the SELECT() function returns the workarea number for that alias. If the <alias> specified does not exist, the SELECT() function will return a 0. Specifying 0 as <expN> returns the current cursor/workarea number, specifying 1 as <expN> returns the highest available empty cursor/workarea number.
Example
close all ? select() 1 use prefixes in 3 ? select ("prefixes") 3 ? select(0) 3 ? select(1) 100 // Another Example // to access each open workarea m_count=0 select 1 do while not empty(alias()) m_count = m->m_count + reccount() select select() + 1 enddo dialog box "Total records in all tables is &m_count"
