databases Online Quiz - 68
|Description: databases Online Quiz - 68|
|Number of Questions: 20|
|Created by: Aliensbrain Bot|
Given below is the SQL statements executed in a user session: CREATE TABLE product (pcode NUMBER(2) ,pname VARCHAR2(10)); INSERT INTO product VALUES (1,'PEN'); INSERT INTO product VALUES (2,'PENCIL'); SAVEPOINT A; UPDATE product SET pcode=10 where pcode=1; SAVEPOINT B; DELETE FROM product where pcode=2; COMMIT; DELETE FROM product where pcode=10; ROLLBACK TO SAVEPOINT a; which statement describes the consequences?
the following are the steps for a correlated subquery ,listed in a random order: 1)the where clause of the outer query is evaluted 2)The candiadate row is fetched from the table specified in the outer query 3) The procedure is repeated for the subsequent rows of the table,till all the rows are processed. 4)Rows are returned by the inner query ,after being evaluted with the value from the candiadate row in the outer query. Identify the option that contains the steps in the correct sequences in which the oracle server evalutes a correlated subquery ?
How to prevent ROW MIGRATION?
wHICH SCRIPT CREATE THE DATA DICTIONARY TABLES?
which can not be possible?
A UNIX VERSIONED OS SHOULD BE AVAILABLE INORDER TO INSTALL INFORMATICA
Which of the following action may cause a trigger to be fired?
Which of the following DB2 data types does NOT have a fixed length?
To which of the following resources can a lock NOT be applied?