Fourth-generation Languages: 4GLS from IBM |
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4GLs ADRS ADRS II analysis application developer arithmetic automatically bar charts calculations capability charts COBOL column complex contains create CSP/AD data base data element named Datatrieve define delete DEPT dictionary display DL/I documents EMPLOYEE IEMP-NO end users end-user enter example executed EXECUTIVE CAR facilities field names Figure format fourth-generation languages functions graphics graphs IBM Personal Computer IBM's input INTELLECT interactive interface layout logic manipulate menu modify nonprocedural OCCURRENCES on-line ONHAND operations options output file perform personal computer PF keys PL/I PRINT programming language provides query languages records request response retrieval rows SALES SELECT command sequence shown in Fig sort specified SQL/DS STAIRS statement group stored subroutine terminal screen third-generation languages TIN BENDING tion types update values VM/CMS VSAM White Plains