Your database instance is started with a PFILE.Examine these parameters:You want to increase the size of the buffer cache.Free memory is available to increase the size of the buffer cache.You execute the command:SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;What is the outcome? A. The value is changed only in the PFILE and takes effect at the next instance startup B.… Read More »
Examine the description of the SALES1 table:SALES2 is a table with the same description as SALES1.Some sales data is duplicated in both tables.You want to display the rows from the SALES1 table which are not present in the SALES2 table.Which set operator generates the required output? A. UNION ALL B. MINUS C. INTERSECT D. UNION E. SUBTRACT Correct… Read More »
Examine this description of the TRANSACTIONS table:Which two SQL statements execute successfully? (Choose two.)SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS DATE, amount + 100 A. ‘DUES AMOUNT’ FROM transactions; B. 100 “DUES AMOUNT” FROM transactions;SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount + 100 DUES FROM C. “DUES” FROM transactions;SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS “DATE”, amount + 100 D. transactions;SELECT… Read More »
Your database instance is started with a PFILE.Examine these parameters:You want to increase the size of the buffer cache.Free memory is available to increase the size of the buffer cache.You execute the command:SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;What is the outcome? A. The value is changed only in the PFILE and takes effect at the next instance startup B.… Read More »
Examine the description of the BOOKS table:The table has 100 rows.Examine this sequence of statements issued in a new session:INSERT INTO books VALUES (‘ADV112’, ‘Adventures of Tom Sawyer’, NULL, NULL); SAVEPOINT a; DELETE FROM books; ROLLBACK TO SAVEPOINT a; ROLLBACK; Which two statements are true? (Choose two.) A. The first ROLLBACK command restores the 101 rows that were… Read More »
Examine the description of the BOOKS table:The table has 100 rows.Examine this sequence of statements issued in a new session:INSERT INTO books VALUES (‘ADV112’, ‘Adventures of Tom Sawyer’, NULL, NULL); SAVEPOINT a; DELETE FROM books; ROLLBACK TO SAVEPOINT a; ROLLBACK; Which two statements are true? (Choose two.) A. The second ROLLBACK command undoes the insert B. The first… Read More »
View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.Examine this SQL statement:Exhibit 1.Exhibit 2.What will be the result? A. It gives an error because the ALL keyword is not valid B. It executes successfully but… Read More »
Your database instance is started with a PFILE.Examine these parameters:You want to increase the size of the buffer cache.Free memory is available to increase the size of the buffer cache.You execute the command:SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;What is the outcome? A. The value is changed only in the PFILE and takes effect at the next instance startup B.… Read More »
Examine this description of the TRANSACTIONS table:Which two SQL statements execute successfully? (Choose two.)SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS DATE, amount + 100 A. DUES FROM transactions;SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + B. 100 “DUES AMOUNT” FROM transactions;SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount + 100 DUES FROM C. transactions;SELECT customer_id AS ‘CUSTOMER-ID’, transaction_date AS DATE,… Read More »
Given:You want to examine the items list it contains an item for which the variable count is below zero.Which code fragment at line 1 accomplish this? A. If (items.stream () .allmatch (i -> count < 0) < 0) ) { B. If (items.stream () .anymatch (i -> count < 0) < 0) ) { C. If (items.stream ()… Read More »