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Introduction to SQL

Introduction to SQL
In SQL, which of the following is not a data definition language commands?

GRANT
REVOKE
RENAME
UPDATE

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Introduction to SQL
________ was adopted as a national standard by ANSI in 1992.

DBase
SQL
Microsoft Access
Oracle

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Introduction to SQL
Which SQL keyword is used to retrieve only unique values?

DIFFERENT
DISTINCT
UNIQUE
DISTINCTIVE

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Introduction to SQL
Table Employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM Employee WHERE SALARY > ANY (SELECT SALARY FROM EMPLOYEE);prints

9
10
5
0

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Introduction to SQL
Which of the following command makes the updates performed by the transaction permanent in the database?

DELETE
COMMIT
TRUNCATE
ROLLBACK

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Introduction to SQL
Which of the SQL statements is correct?

SELECT Username AND Password FROM Users
SELECT Username, Password WHERE Username = 'user1'
SELECT Username, Password FROM Users
None of these

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