HP 3000 Manuals HP 3000 Manuals
Using an Existing Database Application developers can create HP ALLBASE/4GL applications that access existing databases. To access an existing table, developers can define a select list using HP ALLBASE/4GL field specification and column definitions as required. The developer can then use a SELECT command in an SQL logic block to access the required table. Refer to the HP ALLBASE/4GL Developer Reference Manual for more information about these facilities. Alternatively, a developer can define (but not create) a table using the developr file/SQL table definition screen. The HP ALLBASE/4GL definition of the table must have the same name as the existing table, and use a record layout structure that matches the columns of the existing table.