4D v13.4

Is table number valid

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4D v13.4
Is table number valid

Is table number valid 


 

Is table number valid ( tableNum ) -> Function result 
Parameter Type   Description
tableNum  Longint in Table number
Function result  Boolean in True = table exists in database, False = table does not exist in database

The Is table number valid command returns True if the table whose number is passed in the tableNum parameter exists in the database and False otherwise. Keep in mind that the command returns False if the table is in the Trash of the Explorer.

This command can be used to detect any table deletions, which create gaps in the sequence of table numbers.

 
PROPERTIES 

Product: 4D
Theme: Structure Access
Number: 999

 
INDEX

Alphabetical list of commands

 
HISTORY 

Created: 4D v11 SQL

 
SEE ALSO 

Get last table number
Is field number valid