Advanced SQL Which of the following is true concerning systems information in an RDBMS? 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 This information can be accessed using SQL. This information often cannot be updated by a user. ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL A UNION query is which of the following? Combines the output from no more than two queries and must 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 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 no more than two queries and does not 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 multiple queries and must include the same number of columns. 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. All of these Involves the use of an inner and outer query. Does not start with the word SELECT. Cannot return the same result as a query that is not a subquery. All of these Involves the use of an inner and outer query. Does not start with the word SELECT. ANSWER DOWNLOAD EXAMIANS APP
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 Which of the following is true concerning triggers? 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. They have an event, condition, and action. You do not create them with SQL. They cannot cascade (cause another trigger to fire). ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL A function returns one value and has only output parameters. True False True False ANSWER DOWNLOAD EXAMIANS APP
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