Selective Joining of Tables

by Navin Kumar – Assume there are three tables of interest: T1, T2 and T3. Depending on the value of a local variable VAR, you want to join two tables out of the three. The requirement is: If value of VAR is ‘X’ then join T1 and T2; otherwise, join T1 and T3. The value of VAR is determined at run ti

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