Advanced SQL With the UNION clause, each query involved must output the same number of columns, and they must be UNION compatible. False True False True 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 statements is true concerning routines and triggers? Both are stored in the database. Both run automatically. Both have to be called to operate. Both consist of procedural code. Both are stored in the database. Both run automatically. Both have to be called to operate. Both consist of procedural code. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Which of the following is true concerning systems information in an RDBMS? All of these This information often cannot be updated by a user. This information can be accessed using SQL. RDBMS store database definition information in system-created tables. All of these This information often cannot be updated by a user. This information can be accessed using SQL. RDBMS store database definition information in system-created tables. 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 Equi-join Outer join All of these Natural join Equi-join Outer join All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS