Advanced SQL Which of the following is true concerning triggers? They cannot cascade (cause another trigger to fire). You do not create them with SQL. They have an event, condition, and action. They execute against only some applications that access a database. They cannot cascade (cause another trigger to fire). You do not create them with SQL. They have an event, condition, and action. They execute against only some applications that access a database. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL What type of join is needed when you wish to return rows that do have matching values? Outer join Equi-join Natural join All of these Outer join Equi-join Natural join All of these ANSWER DOWNLOAD EXAMIANS APP
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 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 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 ROLLBACK WORK asks SQL to empty the log file. False True False True ANSWER DOWNLOAD EXAMIANS APP
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