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Introduction to SQL

Introduction to SQL
The SQL statementSELECT ROUND(45.926, -1) FROM DUAL;

is illegal
prints garbage
prints 045.926
prints 50

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Introduction to SQL
The SQL -92 wildcards are ____ and ____ .

question mark (?); asterisk (*)
percent sign (%); underscore (_)
underscore(_); question mark (?)
asterisk (*); percent sign (%)

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Introduction to SQL
Which SQL statement is used to update data in a database?

MODIFY
UPDATE
SAVE
SAVE AS

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Introduction to SQL
The FROM SQL clause is used to...

specify search condition
specify what table we are selecting or deleting data FROM
specify range for search condition
None of these

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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

0
10
9
5

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Introduction to SQL
The SQL keyword BETWEEN is used:

as a wildcard.
to limit the columns displayed.
for ranges.
None of these

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