An end-user's guide to data base
What is data base? Productivity and flexibility; Who does what? What are data? Data modeling; Design tools for end users; How to succeed with data modelling; Data-base languages for end users; Ownership of data, and privacy; Considerations which affect machine performance; Separate end-user systems.
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Productivity and Flexibility
Who Does What?
What Are Data?
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ACCOUNTS application program associated BATCH TRANSMISSION bubble chart Chapter COBOL complex computer system concatenated key corporation create data administrator data dictionary data items data modeling data processing data structures data-base designer data-base installations data-base languages data-base management system data-base systems data-item group data-item types defined deleted Describe double-head arrow EMPLOYEE EMPLOYEE ENC YES YES end users end-user example existing Figure future identifies implementation information system INVOICE machine maintenance minicomputer modeling process multiple NAME SALARY DEPARTMENT nonprime attribute off-line operations organization PAYROLL physical PIC XX pointer structures primary key problems production system query languages QUERY-BY-EXAMPLE requests result reverse mapping SCE ENC YES secondary key separate single-head arrow sometimes stored subject data bases SUPPLIER synthesis systems analysts tape terminal TIN BENDING department tion transactions types of data update usage user views views of data WEINBURG YES YES YES