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
Advanced SQL A UNION query is which of the following? Combines the output from multiple queries and must include the same number of columns. Combines the output from no more than two queries and must include the same number of columns. Combines the output from multiple queries and does not include the same number of columns. Combines the output from no more than two queries and does not include the same number of columns. Combines the output from multiple queries and must include the same number of columns. Combines the output from no more than two queries and must include the same number of columns. Combines the output from multiple queries and does not include the same number of columns. Combines the output from no more than two queries and does not include the same number of columns. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Which of the following is true concerning systems information in an RDBMS? This information can be accessed using SQL. This information often cannot be updated by a user. RDBMS store database definition information in system-created tables. All of these This information can be accessed using SQL. This information often cannot be updated by a user. RDBMS store database definition information in system-created tables. All of these 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 All of these Outer join Natural join Equi-join All of these Outer join ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL The UNION clause is used to combine the output from multiple queries together into a single result table. False True False True ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL What type of join is needed when you wish to include rows that do not have matching values? Equi-join Natural join All of these Outer join Equi-join Natural join All of these Outer join ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS