Advanced SQL What type of join is needed when you wish to return rows that do have matching values? All of these Outer join Natural join Equi-join All of these Outer join Natural join Equi-join ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL Which of the following is one of the basic approaches for joining tables? Subqueries Natural join All of these Union Join Subqueries Natural join All of these Union Join ANSWER DOWNLOAD EXAMIANS APP
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 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. All of these RDBMS store database definition information in system-created tables. This information can be accessed using SQL. This information often cannot be updated by a user. All of these RDBMS store database definition information in system-created tables. 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. Involves the use of an inner and outer query. Does not start with the word SELECT. All of these Cannot return the same result as a query that is not a subquery. Involves the use of an inner and outer query. Does not start with the word SELECT. All of these ANSWER DOWNLOAD EXAMIANS APP
Advanced SQL There should be one condition within the WHERE clause for each pair of tables being joined. False True False True ANSWER DOWNLOAD EXAMIANS APP
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