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Introduction to SQL

Introduction to SQL
The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column.

True
False

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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

0
10
5
9

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Introduction to SQL
The SQL statement: SELECT Number1 + Number 2 AS Total FROM NUMBER_TABLE; adds two numbers from each row together and lists the results in a column named Total.

False
True

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Introduction to SQL
A subquery in an SQL SELECT statement is enclosed in:

brackets -- [...].
CAPITAL LETTERS.
parenthesis -- (...) .
braces -- {...}.

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

ORDER BY
ORDER
SORT BY
SORT

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Introduction to SQL
The wildcard asterisk (*) is the SQL-92 standard for indicating "any sequence of characters."

True
False

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