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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
What operator tests column for the absence of data?

EXISTS operator
None of these
IS NULL operator
NOT operator

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Introduction to SQL
Which operator performs pattern matching?

LIKE operator
BETWEEN operator
EXISTS operator
None of these

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

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

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Introduction to SQL
SELECT DISTINCT is used if a user wishes to see duplicate columns in a query.

False
True

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Introduction to SQL
Which of the following is the correct order of keywords for SQL SELECT statements?

SELECT, FROM, WHERE
SELECT,WHERE,FROM
WHERE, FROM,SELECT
FROM, WHERE, SELECT

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