Release 10.1A: OpenEdge Development:
ADM Reference

addQueryWhere

Function that adds string-expressions to the query’s WHERE clause and stores the result in the QueryString property. The function returns TRUE if successful, FA LSE if an appropriate buffer name for the WHERE-clause cannot be located.

Location: query.p

Parameters:

INPUT pcWhere AS CHARACTER

Expression to add (might also be an “OF” phrase).

INPUT pcBuffer AS CHARACTER

An optional buffer specification.

INPUT pcAndOr AS CHARACTER

Specifies the operator that is used to add the new expression to an existing expression or expressions, either AND (the default) or OR.

Returns: LOGICAL

Notes:

Returns FALSE if it cannot find a buffer name to associate with the WHERE clause.
This procedure is designed to run on the client so that it can be called multiple times. This design lets you add multiple phrases to the where-clause before the full where-clause is used to reopen the query.