多項選擇題

View the Exhibit and examine the data in the PRODUCT INFORMATION table.

Which two tasks would require subqueries？（）

A. displaying the minimum list price for each product status
B. displaying all supplier IDs whose average list price is more than 500
C. displaying the number of products whose list prices are more than the average list price
D. displaying all the products whose minimum list prices are more than the average list price of products having the product status orderable
E. displaying the total number of products supplied by supplier 102071 and having product status OBSOLETE

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單項選擇題

Evaluate the CREATE TABLE statement：
CREATE TABLE products
（product_id NUMBER （6）
CONSTRAINT prod_id_pk PRIMARY KEY， product_name VARCHAR2 （15））；
Which statement is true regarding the PROD_ID_PK constraint？（）

A. It would be created only if a unique index is manually created first.
B. It would be created and would use an automatically created unique index.
C. It would be created and would use an automatically created nonunique index.
D. It would be created and remains in a disabled state because no index is specified in the command.

多項選擇題

Which two statements are true regarding the execution of the correlated subqueries？（）

A. The nested query executes after the outer query returns the row.
B. The nested query executes first and then the outer query executes.
C. The outer query executes only once for the result returned by the inner query.
D. Each row returned by the outer query is evaluated for the results returned by the inner query.

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View the Exhibit and examine the data in the PRODUCT INFORMATION table. Which two tasks would require subqueries？ （）

你可能感興趣的試題

Evaluate the CREATE TABLE statement： CREATE TABLE products （product_id NUMBER （6） CONSTRAINT prod_id_pk PRIMARY KEY， product_name VARCHAR2 （15））； Which statement is true regarding the PROD_ID_PK constraint？（）

Which two statements are true regarding the execution of the correlated subqueries？（）

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View the Exhibit and examine the data in the PRODUCT INFORMATION table.

Which two tasks would require subqueries？（）

Evaluate the CREATE TABLE statement：
CREATE TABLE products
（product_id NUMBER （6）
CONSTRAINT prod_id_pk PRIMARY KEY， product_name VARCHAR2 （15））；
Which statement is true regarding the PROD_ID_PK constraint？（）