A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
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Concept explainers
Question
Chapter 4, Problem 1RQ
Program Plan Intro
SQL:
- SQL means Structured Query Language.
- It allows user to access and manipulate databases.
- It is a language used to create
database applications that necessity to query relational databases. - This language is used for following ways,
- Add data to a database.
- Modify present data in the database.
- Remove data from the database.
Expert Solution & Answer
Explanation of Solution
Basic form of the SQL SELECT command:
The basic form of the SQL SELECT command is given below:
Basic form: SELECT-FROM-WHERE
Explanation:
- The SQL SELECT command is used to retrieve given values in a database.
- From the given basic form,
- After user type the word “SELECT”, user list the columns that they want to include in the query results.
- Next, user type the word “FROM” followed by table name that have the data user need to query.
- Finally, user can list conditions that apply to the data they want to retrieve after the word “WHERE”.
Example:
The example for the SQL SELECT command is given below:
SELECT * FROM Students WHERE Subject = 'Mathematics';
The above query is used to selects all the students from the subject “Mathematics” in the “Students” table.
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Chapter 4 Solutions
A Guide to SQL
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - In which clause would you use a wildcard in a...Ch. 4 - Prob. 7RQCh. 4 - How do you determine whether a column contains one...Ch. 4 - Prob. 9RQCh. 4 - Prob. 10RQ
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - Prob. 16RQCh. 4 - How do you find rows in which a particular column...Ch. 4 - Use the Internet to research the SQL [charlist]...Ch. 4 - Prob. 1TDCh. 4 - Prob. 2TDCh. 4 - Prob. 3TDCh. 4 - Prob. 4TDCh. 4 - Prob. 5TDCh. 4 - Prob. 6TDCh. 4 - Prob. 7TDCh. 4 - Prob. 8TDCh. 4 - Prob. 9TDCh. 4 - Prob. 10TDCh. 4 - Prob. 11TDCh. 4 - Prob. 12TDCh. 4 - Prob. 13TDCh. 4 - Prob. 14TDCh. 4 - Prob. 15TDCh. 4 - Prob. 16TDCh. 4 - What is the price of the least expensive item in...Ch. 4 - Prob. 18TDCh. 4 - Prob. 19TDCh. 4 - Prob. 20TDCh. 4 - Prob. 21TDCh. 4 - Prob. 22TDCh. 4 - Prob. 23TDCh. 4 - Prob. 1CATCh. 4 - Prob. 2CATCh. 4 - Prob. 3CATCh. 4 - Prob. 4CATCh. 4 - Prob. 5CATCh. 4 - Prob. 6CATCh. 4 - Prob. 7CATCh. 4 - Prob. 8CATCh. 4 - Prob. 9CATCh. 4 - Prob. 10CATCh. 4 - Prob. 11CATCh. 4 - Prob. 12CATCh. 4 - Prob. 13CATCh. 4 - Prob. 14CATCh. 4 - Prob. 15CATCh. 4 - Prob. 16CATCh. 4 - Prob. 17CATCh. 4 - Prob. 18CATCh. 4 - Prob. 19CATCh. 4 - List the reservation ID and trip ID for all trips...Ch. 4 - Prob. 1SCGCh. 4 - Prob. 2SCGCh. 4 - Prob. 3SCGCh. 4 - Prob. 4SCGCh. 4 - Prob. 5SCGCh. 4 - Prob. 6SCGCh. 4 - Prob. 7SCGCh. 4 - Prob. 8SCGCh. 4 - Prob. 9SCGCh. 4 - Prob. 10SCGCh. 4 - Prob. 11SCGCh. 4 - Prob. 12SCGCh. 4 - Prob. 13SCGCh. 4 - Prob. 14SCGCh. 4 - Prob. 15SCGCh. 4 - Prob. 16SCG
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