Advanced SQL The joining technique is useful when data from several relations are to be retrieved and displayed and the relationships are not necessarily nested. True False True False ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL The most frequently used relational operation, which brings together data from two or more related tables into one resultant table, is called an equi-join. False True False True ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Subqueries can be nested multiple times. True False True False ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Which of the following is one of the basic approaches for joining tables? Subqueries Natural join All of these Union Join Subqueries Natural join All of these Union Join ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Which of the following is a correlated subquery? Uses the result of an outer query to determine the processing of an inner query. Uses the result of an inner query to determine the processing of an inner query. Uses the result of an inner query to determine the processing of an outer query. Uses the result of an outer query to determine the processing of an outer query. Uses the result of an outer query to determine the processing of an inner query. Uses the result of an inner query to determine the processing of an inner query. Uses the result of an inner query to determine the processing of an outer query. Uses the result of an outer query to determine the processing of an outer query. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL What type of join is needed when you wish to return rows that do have matching values? Natural join All of these Outer join Equi-join Natural join All of these Outer join Equi-join ANSWER DOWNLOAD EXAMIANS APP
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