Advanced SQL Which of the following statements is true concerning subqueries? Cannot return the same result as a query that is not a subquery. Does not start with the word SELECT. All of these Involves the use of an inner and outer query. Cannot return the same result as a query that is not a subquery. Does not start with the word SELECT. All of these Involves the use of an inner and outer query. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL With the UNION clause, each query involved must output the same number of columns, and they must be UNION compatible. True False True False ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL A function returns one value and has only output parameters. True False True False ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Which of the following is true concerning triggers? They execute against only some applications that access a database. You do not create them with SQL. They have an event, condition, and action. They cannot cascade (cause another trigger to fire). They execute against only some applications that access a database. You do not create them with SQL. They have an event, condition, and action. They cannot cascade (cause another trigger to fire). ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL There should be one condition within the WHERE clause for each pair of tables being joined. True False True False ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL A correlated subquery is where the outer query depends on data from the inner query. True False True False ANSWER DOWNLOAD EXAMIANS APP
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