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DATABASE - RELATIONAL ALGEBRA CertID C1 C2 C5 NurselD CertID C1 n1 n1 n1 n2 n2 c2 C1 C2 C1 c2 C3 (21 C2 C5

DATABASE - RELATIONAL ALGEBRA

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CertID C1 C2 C5 NurselD CertID C1 n1 n1 n1 n2 n2 c2 C1 C2 C1 c2 C3 (21 C2 C5 n3 n5 n6 8. Given that R S can be equivalently expressed via , X and-operations in the form T4=T3-R T=T1-T2 Show T1, T3, T4, T2 and finally T

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