Specifies the number of descriptions that the driver saves for Select statements. These descriptions include the number of columns, data type, length, and scale for each column. The matching is done by an exact-text match through the FROM clause.
Valid Values
An integer from 0 to 65535
Notes
If the Select statement contains a Union or a nested Select, the description is not cached.
If the Select statement contains a Union or a nested Select, the description is not cached.