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Introduction to SQL

Introduction to SQL
Microsoft Access has become ubiquitous, and being able to program in Access is a critical skill.

True
False

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Introduction to SQL
Which of the following join is also called as an 'inner-join'?

Equijoin
Self-Join
Non-Equijoin
None of these

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Introduction to SQL
Which of the following is illegal?

SELECT SYSDATE - (SYSDATE - 2) FROM DUAL;
SELECT SYSDATE - SYSDATE FROM DUAL;
SELECT SYSDATE - (SYSDATE + 2) FROM DUAL;
None of these

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Introduction to SQL
Which SQL keyword is used to sort the result-set?

SORT BY
ORDER
ORDER BY
SORT

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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
0
10
5

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Introduction to SQL
Which SQL keyword is used to retrieve a maximum value?

UPPER
MAX
MOST
TOP

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