Advanced SQL Which of the following statements is true concerning subqueries? Involves the use of an inner and outer query. All of these Does not start with the word SELECT. Cannot return the same result as a query that is not a subquery. Involves the use of an inner and outer query. All of these Does not start with the word SELECT. Cannot return the same result as a query that is not a subquery. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL ROLLBACK WORK asks SQL to empty the log file. True False True False ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL A transaction is the complete set of closely related update commands that must all be done, or none of them done, for the database to remain valid. False True False True ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL The following SQL is which type of join: SELECT CUSTOMER_T. CUSTOMER_ID, ORDER_T. CUSTOMER_ID, NAME, ORDER_ID FROM CUSTOMER_T,ORDER_T ; Cartesian join Natural join Outer join Equi-join Cartesian join Natural join Outer join Equi-join ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Which of the following is true concerning triggers? You do not create them with SQL. They execute against only some applications that access a database. They cannot cascade (cause another trigger to fire). They have an event, condition, and action. You do not create them with SQL. They execute against only some applications that access a database. They cannot cascade (cause another trigger to fire). They have an event, condition, and action. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL What type of join is needed when you wish to return rows that do have matching values? All of these Natural join Outer join Equi-join All of these Natural join Outer join Equi-join ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS