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Introduction to SQL

Introduction to SQL
The result of every SQL query is a table.

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 SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column.

True
False

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Introduction to SQL
If you are going to use a combination of three or more AND and OR conditions, it is often easier to use the NOT and NOT IN operators.

False
True

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

SQL
Oracle
DBase
Microsoft Access

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Introduction to SQL
Which of the following must be enclosed in double quotes?

Column Alias
All of these
Strings
Dates

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