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Introduction to SQL

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
The command to eliminate a table from a database is:

DELETE TABLE CUSTOMER;
REMOVE TABLE CUSTOMER;
UPDATE TABLE CUSTOMER;
DROP TABLE CUSTOMER;

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Introduction to SQL
SQL provides five built-in functions: COUNT, SUM, AVG, MAX, MIN.

True
False

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Introduction to SQL
Which SQL keyword is used to retrieve a maximum value?

UPPER
MOST
TOP
MAX

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Introduction to SQL
Which of the following is illegal?

SELECT SYSDATE - SYSDATE FROM DUAL;
SELECT SYSDATE - (SYSDATE - 2) FROM DUAL;
SELECT SYSDATE - (SYSDATE + 2) FROM DUAL;
None of these

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Introduction to SQL
The condition in a WHERE clause can refer to only one value.

False
True

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