Difference between revisions of "INUSE()"
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==Purpose== | ==Purpose== | ||
Function to determine if a table is open | Function to determine if a table is open | ||
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==Syntax== | ==Syntax== | ||
INUSE(<expC>) | INUSE(<expC>) | ||
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==See Also== | ==See Also== | ||
| − | [[DBF()]], [[NDX() | + | [[DBF()]], [[NDX()]], [[SET EXCLUSIVE]], [[USE]], [[USED()]] |
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==Description== | ==Description== | ||
The INUSE() function checks if a table with the alias name specified in <expC> is open in any workarea. The INUSE() functions returns .T. if a table is open, .F. if not. The alias can be specified in the USE command. If not specified, the table basename is used | The INUSE() function checks if a table with the alias name specified in <expC> is open in any workarea. The INUSE() functions returns .T. if a table is open, .F. if not. The alias can be specified in the USE command. If not specified, the table basename is used | ||
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==Example== | ==Example== | ||
<code lang="recital"> | <code lang="recital"> | ||
| − | + | ? inuse("customers") | |
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| − | ? inuse(" | + | |
.T. | .T. | ||
| − | ? inuse(" | + | ? inuse("products") |
.T. | .T. | ||
</code> | </code> | ||
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[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
| − | [[Category: | + | [[Category:Cursor Functions]] |
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Latest revision as of 10:53, 4 February 2013
Contents
Purpose
Function to determine if a table is open
Syntax
INUSE(<expC>)
See Also
DBF(), NDX(), SET EXCLUSIVE, USE, USED()
Description
The INUSE() function checks if a table with the alias name specified in <expC> is open in any workarea. The INUSE() functions returns .T. if a table is open, .F. if not. The alias can be specified in the USE command. If not specified, the table basename is used
Example
? inuse("customers") .T. ? inuse("products") .T.
