GATE 1991
A clustering index is defined on an ordered data file where the ordering data attribute is:
Which relational algebra operator is equivalent to the SQL expression 'INTERSECT'?
In SQL, the HAVING clause is used to filter:
Armstrong's Transitivity Axiom states that:
Which recovery log record format logs both the old value and the new value of a modified data item?
Which SQL command modifies existing table row data?
Let P, Q, R and S be the attributes of a relation in a relational schema. Let X → Y indicate functional dependency in the context …
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