dbc_BeforeOpenTable Event

Occurs before a table or view contained in the database is opened.

PROCEDURE dbc_BeforeOpenTable(cTableName) 

-Or-

PROCEDURE dbc_BeforeOpenTable
LPARAMETERS cTableName

Parameters

• cTableName
  Specifies the name of the table or view being opened.

Remarks

You can use method code in the dbc_BeforeOpenTable event to track attempted access before a table is opened in the database. This event occurs anytime a table or view in the database is opened either explicitly by the USE command or implicitly by other commands such as SELECT.

If the underlying tables are not open when a view is opened, this event occurs for both the tables and the view.

Return .F. from this procedure to prevent the table from being opened.

Example

* Reports the method name, where it is called from and the 
* value of the paramater cTableName.
PROCEDURE dbc_BeforeOpenTable ;
         (cTableName)
? '>>   ' + PROGRAM()
?? ' in ' + SUBSTR(SYS(16),RAT('\',SYS(16))+1)
? '     cTableName = ' + TRANSFORM(cTableName) + ' - ' ;
                    + TYPE('cTableName')+' /end/ '
ENDPROC

See Also

Enable or Disable DBC Events | dbc_AfterOpenTable Event