Advanced SQL Which of the following is true concerning triggers? They have an event, condition, and action. You do not create them with SQL. They cannot cascade (cause another trigger to fire). They execute against only some applications that access a database. They have an event, condition, and action. You do not create them with SQL. They cannot cascade (cause another trigger to fire). They execute against only some applications that access a database. ANSWER DOWNLOAD EXAMIANS APP
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 What type of join is needed when you wish to return rows that do have matching values? Natural join Outer join All of these Equi-join Natural join Outer join All of these Equi-join ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Embedded SQL is which of the following? The process of making an application capable of generating specific SQL code on the fly. Hard-coded SQL statements in a procedure. Hard-coded SQL statements in a trigger. Hard-coded SQL statements in a program language such as Java. The process of making an application capable of generating specific SQL code on the fly. Hard-coded SQL statements in a procedure. Hard-coded SQL statements in a trigger. Hard-coded SQL statements in a program language such as Java. 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 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 WHERE CUSTOMER_T. CUSTOMER_ID = ORDER_T. CUSTOMER_ID Equi-join Cartesian join Natural join Outer join Equi-join Cartesian join Natural join Outer join ANSWER DOWNLOAD EXAMIANS APP
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