A Guide to SQL
A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
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Question
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Chapter 4, Problem 11SCG
Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

  • The given query is used to display each student ID from “STUDENT” table.

“IN” Clause:

  • The “IN” clause consists of an “IN” operator followed by a set of values.
  • Using an “IN” clause, user can determine whether a column contains one of a particular group of values.

Example:

The example for “IN” clause is given below:

SELECT STUDENT_ID, STUDENT_NAME, STUDENT_CREDIT FROM STUDENT WHERE STUDENT_CREDIT IN(50, 70, 100);

 The above query is used to list student ID, name, and credit for each student with a credit limit of “50”, “70” or “100”.

  • From the given query, user can determine whether a student credit limit is “50”, “70” or “100” using an “IN” operator.

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Chapter 4 Solutions

A Guide to SQL

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