【2019年8月版】OCP 071认证考试原题-第40题
Choose two. Which two statements are true about single row functions? A) CONCAT : can be used to combine any number of values B) M
2024-11-07
【2019年8月版】OCP 071认证考试原题-第39题
Choose two Exanine the desatption of the BOOKS_TRANSACTIONS table Name Null? Type ------------------------------------------------
2024-11-07
【2019年8月版】OCP 071认证考试原题-第41题
choose three The ORDERS table has a primary key constraint on the ORDER_ID column. The ORDER_ITEMS table has a foreign key constra
2024-11-07
【2019年8月版】OCP 071认证考试原题-第35题
choose two Which two statenents are tue about the COUNT function? A) It can only be used for NUMBER data types. B) COUNT (DISTINCT
2024-11-07
【2019年8月版】OCP 071认证考试原题-第37题
Choose the best answer Examine the description of the PRODUCT_INFORMATION table: Name NULL? Type ----------------------
2024-11-07
【2019年8月版】OCP 071认证考试原题-第42题
Choose two Examine this SQL statement: DELETE FROM employees e WHERE EXISTS (SELECT "dummy" FROM emp_history WHERE employee_id = e
2024-11-07
【2019年8月版】OCP 071认证考试原题-第33题
Choose three. Which three statements are true about a self join? A) It must be an inner join. B) It can be an outer join. C) The O
2024-11-07