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Unformatted text preview: nulls. 5. TABLE REFERENTIAL INTEGRITY EXPLANATION EMPLOYEE Yes Each JOB_CODE value in EMPLOYEE points to an existing JOB_CODE value in JOB. BENEFIT Yes Each EMP_CODE value in BENEFIT points to an existing EMP_CODE value in EMPLOYEE and each PLAN_CODE value in BENEFIT points to an existing PLAN_CODE value in PLAN. JOB NA PLAN NA 6. 7....
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This note was uploaded on 04/03/2010 for the course CMPSC 121 taught by Professor Crawford,georgew during the Spring '07 term at Penn State.
- Spring '07