C2090-556 Practice Questions & Answers

C2090-556 Exam Questions


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Question No : 1

Which two statements will search text data stored in the column brands of the table products for the string century? (Choose two.)
A. SELECT id FROM products WHERE brands = 'century';
B. SELECT id FROM products WHERE brands LIKE '*century*';
C. SELECT id FROM products WHERE brands MATCHES '*century*';
D. SELECT id FROM products WHERE bts_exists(brands, 'century');
E. SELECT id FROM products WHERE bts_contains(brands, 'century');

Answer: C,E

Question No : 2

What is a view?
A. a synonym
B. a base table
C. a virtual or synthetic table
D. a copy of an ordinary table

Answer: C

Question No : 3

William needs to create a table with a BYTE column which must be populated. Which of the following CREATE TABLE clauses can be used to ensure that the BYTE column contains a value?
A. OF TYPE
B. NOT NULL
C. CHECK (IS NOT NULL)
D. It is not possible to ensure that a BYTE column is populated.

Answer: C

Question No : 4

When is a cursor necessary in an SQL program?
A. A cursor is necessary before an after trigger can be created.
B. A cursor is necessary when a query returns one row and you wish to examine its content and maybe update it or delete it.
C. A cursor is necessary when a query returns more than one row and you wish to examine their content before an update or delete statement isexecuted.
D. A cursor is only necessary when using DISTINCT, UNIQUE, ORDER BY, GROUP BY or aggregates in SQL statements.

Answer: C

Question No : 5


What are user created temporary tables used for?
A. To persistently write temporary data to disk.
B. To share result sets across multiple sessions.
C. To access a temporary result set within one session.
D. To automatically delete data based on a time policy.

Answer: C



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