Design and Implementation of Universal Query Based on PowerBuilder

AbstrcatThis article discusses a universal query window which can query any appointed table, any fields under random conditions based on PowerBuilder .The characteristics of this universal query is that it can acquire and display the fields and their values of the data table automatically.Therefore, users just need to choose or input the query conditions directly, then the control will converse them to corresponding SQL query sentences automatically .This query module can be embedded in any PowerBuilder application softwares and with some practical value.