Update with subquery : Update « Insert Update Delete « Oracle PL/SQL Tutorial

Oracle PL/SQL Tutorial
1. Introduction
2. Query Select
3. Set
4. Insert Update Delete
5. Sequences
6. Table
7. Table Joins
8. View
9. Index
10. SQL Data Types
11. Character String Functions
12. Aggregate Functions
13. Date Timestamp Functions
14. Numerical Math Functions
15. Conversion Functions
16. Analytical Functions
17. Miscellaneous Functions
18. Regular Expressions Functions
19. Statistical Functions
20. Linear Regression Functions
21. PL SQL Data Types
22. PL SQL Statements
23. PL SQL Operators
24. PL SQL Programming
25. Cursor
26. Collections
27. Function Procedure Packages
28. Trigger
29. SQL PLUS Session Environment
30. System Tables Data Dictionary
31. System Packages
32. Object Oriented
33. XML
34. Large Objects
35. Transaction
36. User Privilege
Java
Java Tutorial
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Oracle PL/SQL Tutorial » Insert Update Delete » Update 
4. 3. 9. Update with subquery
SQL> CREATE TABLE product (
  2       product_name     VARCHAR2(25PRIMARY KEY,
  3       product_price    NUMBER(4,2),
  4       quantity_on_hand NUMBER(5,0),
  5       last_stock_date  DATE
  6       );

Table created.

SQL>
SQL> CREATE TABLE product_order (
  2       product_name  VARCHAR2(25),
  3       salesperson   VARCHAR2(3),
  4       order_date DATE,
  5       quantity      NUMBER(4,2)
  6       );

Table created.

SQL>
SQL>
SQL> INSERT INTO product_order VALUES ('Product 1', 'CA', '14-JUL-03', 1);

row created.

SQL> INSERT INTO product_order VALUES ('Product 2', 'BB', '14-JUL-03', 75);

row created.

SQL> INSERT INTO product_order VALUES ('Product 3', 'GA', '14-JUL-03', 2);

row created.

SQL> INSERT INTO product_order VALUES ('Product 4', 'GA', '15-JUL-03', 8);

row created.

SQL> INSERT INTO product_order VALUES ('Product 5', 'LB', '15-JUL-03', 20);

row created.

SQL> INSERT INTO product_order VALUES ('Product 6', 'CA', '16-JUL-03', 5);

row created.

SQL> INSERT INTO product_order VALUES ('Product 7', 'CA', '17-JUL-03', 1);

row created.

SQL>
SQL>
SQL> INSERT INTO product VALUES ('Product 1', 99,  1,    '15-JAN-03');

row created.

SQL> INSERT INTO product VALUES ('Product 2', 75,  1000'15-JAN-02');

row created.

SQL> INSERT INTO product VALUES ('Product 3', 50,  100,  '15-JAN-03');

row created.

SQL> INSERT INTO product VALUES ('Product 4', 25,  10000null);

row created.

SQL> INSERT INTO product VALUES ('Product 5', 9.95,1234'15-JAN-04');

row created.

SQL> INSERT INTO product VALUES ('Product 6', 45,  1,    TO_DATE('December 31200811:30 P.M.','Month dd, YYYY, HH:MI P.M.'));

row created.

SQL>
SQL> select from product;

PRODUCT_NAME              PRODUCT_PRICE QUANTITY_ON_HAND LAST_STOC
------------------------- ------------- ---------------- ---------
Product 1                            99                1 15-JAN-03
Product 2                            75             1000 15-JAN-02
Product 3                            50              100 15-JAN-03
Product 4                            25            10000
Product 5                          9.95             1234 15-JAN-04
Product 6                            45                1 31-DEC-08

rows selected.

SQL>
SQL>
SQL> UPDATE product
  2  SET    product_price = product_price * .9
  3  WHERE  product_name NOT IN (SELECT DISTINCT product_name FROM product_order);

rows updated.

SQL>
SQL> select from product;

PRODUCT_NAME              PRODUCT_PRICE QUANTITY_ON_HAND LAST_STOC
------------------------- ------------- ---------------- ---------
Product 1                            99                1 15-JAN-03
Product 2                            75             1000 15-JAN-02
Product 3                            50              100 15-JAN-03
Product 4                            25            10000
Product 5                          9.95             1234 15-JAN-04
Product 6                            45                1 31-DEC-08

rows selected.

SQL>
SQL> drop table product;

Table dropped.

SQL> drop table product_order;

Table dropped.

SQL>
SQL>
4. 3. Update
4. 3. 1. Modifying Rows Using the UPDATE Statement
4. 3. 2. Change more than one column value in update statement
4. 3. 3. If the WHERE clause were omitted, all the rows would be updated.
4. 3. 4. Change multiple rows and multiple columns in the same UPDATE statement
4. 3. 5. Use function in set clause
4. 3. 6. Writing an UPDATE Statement Containing a Subquery
4. 3. 7. Use TO_DATE('December 31, 2005, 11:30 P.M.','Month dd, YYYY, HH:MI P.M.') in update statement
4. 3. 8. Set clause with math expression
4. 3. 9. Update with subquery
4. 3. 10. Update a subquery
4. 3. 11. Set value based on a select statement
4. 3. 12. Change department name to lower case
4. 3. 13. Update data from existing column
4. 3. 14. Update four columns
4. 3. 15. Update one row
4. 3. 16. Update salary based on average salary
4. 3. 17. Update the emp table, converting emp names to uppercase
4. 3. 18. subquery in update statement
4. 3. 19. To update the salary of all emps to the maximum salary in the corresponding department (correlated subquery):
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.