Database Systems: Design, Implementation, Management, Loose-leaf Version
Database Systems: Design, Implementation, Management, Loose-leaf Version
12th Edition
ISBN: 9781305866799
Author: Coronel, Carlos; Morris, Steven
Publisher: Course Technology
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Chapter 8, Problem 26P
Program Plan Intro

SELECT statement:

It is used to retrieve information from the table or database. The syntax for the “SELECT” statement is given below:

SELECT * FROM table_Name;

“Round()” function:

The function used to round a number that specified in decimal places. The format of the “Round()” function is as follows:

Syntax:

ROUND(number, decimal_places)

INNER JOIN keyword:

“INNER JOIN” keyword is used to select all the matching records of both the table.

Syntax:

SELECT col_Name FROM table_Name1 INNER JOIN table_Name2 ON table_Name1.col_Name = table_Name2.col_Name;

Inner join:

The “inner join” keyword is to select the matching records from two tables. The syntax of “inner join” is as follows:

Syntax:

SELECT column_name FROM table1 INNER JOIN table2 ON table1.column_name=table2.column_name;

WHERE clause:

“WHERE” statement is used limit the number of rows. For example: Consider a table “FTable” that has two columns named “FruitName” and “Color”. “WHERE” clause is used when there is a need to display the entire FruitName whose color is Red.

SELECT * FROM FTable WHERE color = 'red';

When the above statement is executed, red colored fruits get displayed.

ORDER BY Clause:

SQL contains “ORDER BY” clause in order to sort rows. The values get sorted in ascending as well as descending order. The keyword used to sort values in ascending order is “ASC” and for descending order is “DESC”. By default, it sorts values by ascending order.

Syntax:

SELECT column_Name1, column_Name2 FROM table_Name ORDER BY column_Name2;

“GROUP BY” Clause:

The GROUP BY clause is used to group the result of a SELECT statement done on a table where the tuple values are similar for more than one column.

Syntax:

SELECT expression1, expression2, expression_n, aggregate_function (expression) FROM table_name WHERE conditions GROUP BY expression1, expression2, expression_n;

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Chapter 8 Solutions

Database Systems: Design, Implementation, Management, Loose-leaf Version

Ch. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Given the employee information in Question 11,...Ch. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - Prob. 16RQCh. 8 - What Oracle function should you use to calculate...Ch. 8 - Prob. 18RQCh. 8 - What string function should you use to list the...Ch. 8 - Prob. 20RQCh. 8 - Prob. 21RQCh. 8 - Prob. 22RQCh. 8 - Prob. 23RQCh. 8 - Prob. 24RQCh. 8 - Prob. 1PCh. 8 - Insert the data into the tables you created in...Ch. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 5PCh. 8 - Prob. 6PCh. 8 - Prob. 7PCh. 8 - Prob. 8PCh. 8 - Prob. 9PCh. 8 - Modify the CUSTOMER table to include two new...Ch. 8 - Assuming that you completed Problem 10, write the...Ch. 8 - Assuming that the CUSTOMER table contains a...Ch. 8 - Write the query that lists the average age of your...Ch. 8 - Write the trigger to update the CUST_BALANCE in...Ch. 8 - Prob. 15PCh. 8 - Prob. 16PCh. 8 - Write a trigger to update the customer balance...Ch. 8 - Write a procedure to delete an invoice, giving the...Ch. 8 - Prob. 19PCh. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Write a single SQL command to increase all price...Ch. 8 - Prob. 24PCh. 8 - Prob. 25PCh. 8 - Prob. 26PCh. 8 - Prob. 27PCh. 8 - Create a trigger named trg_line_total to write the...Ch. 8 - Create a trigger named trg_line_prod that...Ch. 8 - Create a stored procedure named prc_inv_amounts to...Ch. 8 - Create a procedure named prc_cus_balance_update...Ch. 8 - Modify the MODEL table to add the attribute and...Ch. 8 - Prob. 33PCh. 8 - Modify the CHARTER table to add the attributes...Ch. 8 - Write the sequence of commands required to update...Ch. 8 - Write the sequence of commands required to update...Ch. 8 - Write the command required to update the...Ch. 8 - Write the command required to update the...Ch. 8 - Write the command required to update the...Ch. 8 - Prob. 40PCh. 8 - Create a trigger named trg_char_hours that...Ch. 8 - Create a trigger named trg_pic_hours that...Ch. 8 - Create a trigger named trg_cust_balance that...Ch. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - Prob. 46PCh. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - Prob. 51PCh. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 54PCh. 8 - Prob. 55PCh. 8 - Prob. 56PCh. 8 - Prob. 57PCh. 8 - Prob. 58PCh. 8 - Prob. 59PCh. 8 - Prob. 61PCh. 8 - Prob. 62PCh. 8 - Prob. 63PCh. 8 - Prob. 64PCh. 8 - Prob. 65PCh. 8 - Prob. 66PCh. 8 - Prob. 67PCh. 8 - Alter the DETAILRENTAL table to include a derived...Ch. 8 - Update the DETAILRENTAL table to set the values in...Ch. 8 - Alter the VIDEO table to include an attribute...Ch. 8 - Update the VID_STATUS attribute of the VIDEO table...Ch. 8 - Alter the PRICE table to include an attribute...Ch. 8 - Prob. 73CCh. 8 - Prob. 76C
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