After declaring data, you can change a dynamic table field, adding or removing columns, using the following steps:

The following code disassociates a target array from the qo query object, disassociates any particular class from the tarray array, and disassociates any array from the tfield table field:

If data has not been declared, the UnDeclareData method returns an error (nonzero value). Similarly, invoking the DeclareData method on an object for which data has already been declared (either a variable was declared for the table field in OpenROAD Workbench or with the DeclareData method) returns an error. Moreover, if a variable was declared for the table field in Workbench, you cannot later undeclare and redeclare the data.