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Introduction to SQL

Introduction to SQL
You can add a row using SQL in a database with which of the following?

CREATE
ADD
INSERT
MAKE

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Introduction to SQL
The SQL WHERE clause:

Neither A nor B are correct.
Both A and B are correct.
limits the row data are returned.
limits the column data that are returned.

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Introduction to SQL
The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.

False
True

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Introduction to SQL
SQL can be used to:

create database structures only.
query database data only.
modify database data only.
All of these

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Introduction to SQL
Count function in SQL returns the number of

distinct values.
groups.
columns.
values.

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Introduction to SQL
The SQL statementSELECT SUBSTR('123456789', INSTR('abcabcabc', 'b'), 4) FROM DUAL;

456789
6789
1234
2345

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