Update « Insert Update Delete « Oracle PL/SQL Tutorial

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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
Oracle PL/SQL Tutorial » Insert Update Delete » Update 
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):
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