Difference between revisions of "DBUSED()"
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Revision as of 07:59, 7 December 2012
Contents
Purpose
Function to check whether a database is open.
Syntax
DBUSED(<expC>)
See Also
ADATABASES(), ADIR(), ALIAS(), CLOSE DATABASES, COPY DATABASE, DATABASE(), DBF(), DISPLAY SCHEMAS, DISPLAY STATUS, GETENV(), LIST SCHEMAS, LIST STATUS, OPEN DATABASE, SET FILECASE, SET SQL, USE, USED()
Description
The DBUSED() function is used to check whether the database whose name is specified in <expC> is open. If the database is open, DBUSED() returns True (.T.), if not it returns False (.F.).
Databases can be opened using the SQL USE command, with SQL set to MYSQL, or using the SQL OPEN DATABASE command.
Example
OPEN DATABASE hr EXCLUSIVE ? dbused("hr") .T. CLOSE DATABASES