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Introduction to SQL

Introduction to SQL
To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.

SINGLE
DISTINCT
UNIQUE
ONLY

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Introduction to SQL
Which operator performs pattern matching?

None of these
BETWEEN operator
EXISTS operator
LIKE operator

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

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

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Introduction to SQL
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?

Data Definition Language(DDL)
Data Manipulation Language(DML)
Both of above
None

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Introduction to SQL
Which of the following SQL commands can be used to add data to a database table?

INSERT
ADD
APPEND
UPDATE

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

Column Alias
Dates
All of these
Strings

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