Specifies the cursor handle for the query.
Syntax:
type HDBICur: Longint;
property Handle: HDBICur;
Description:
Use Handle only to bypass TPSQLQuery methods and call directly into the PostgreSQL. Many PostgreSQL function calls require a cursor handle parameter. Handle is assigned an initial value when a query is executed. If used with a call that changes the current record position, call Resync immediately after returning from the PostgreSQL call.