char *dal_wdh_ret_joi ()

 Returns the join string (in SQL syntax as »where-clause«) for the current widget mask representing the constraint of the tables combined in the widget.

Input Parameters Significance
none -

Output Parameters Significance
none -

Return Code Significance
value join string for the widget data structure
0 no join string defined
1 widget is no data base widget

The join string has a maximum length of 100.

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