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Introduction to SQL

Introduction to SQL
To sort the results of a query use:

GROUP BY.
SORT BY.
ORDER BY.
None of these

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Introduction to SQL
SQL is a programming language.

True
False

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Introduction to SQL
Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value.

False
True

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Introduction to SQL
The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.

False
True

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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 > ALL (SELECT SALARY FROM EMPLOYEE);prints

5
10
0
9

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Introduction to SQL
Which of the following do you need to consider when you make a table in SQL?

All of these
Data types
Primary keys
Default values

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