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Introduction to SQL

Introduction to SQL
SQL data definition commands make up a(n) ________ .

HTML
DML
XML
DDL

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Introduction to SQL
What is the full form of SQL?

Structured Query Language
Simple Query Language
None of these
Structured Query List

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Introduction to SQL
The result of a SQL SELECT statement is a(n) ________ .

form
report
table
file

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Introduction to SQL
Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value.

True
False

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

Strings
Dates
Column Alias
All of these

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Introduction to SQL
Which of the following is illegal?

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

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