Oracle decode plus#

Why will I tell you that case is an extended version of DECODE. In this section, you can easily understand the basic difference between CASE and DECODE.

Difference Between CASE and DECODE in Oracle The below comparison will help you out which is good for use. So I have also explained the difference between Case and Decode in Oracle. Now most the people ask me then what will we use for Decode or Case. We are taking same example for the simple understanding. We can say it is an extended version of Decode. It is same as decode for perform IF-THEN-ELSE logic.Ĭase was introduced in Oracle 8.1. It is also perform transfer your data to the another data. Question 1:- What is Case in Oracle?Ĭase is a statement in Oracle. Now let's take some questions with answer on the Case Statement in Oracle. May be, Now above questions with answer will help you out for the better understanding about the Decode Function. 10 is search value and Oracle is result.Let's understand in details if dept_no is 10 then decode function return Oracle, If dept_no is 20 then decode function return java same as for all and last is default if 10,20,30,40 dept_no is not found then decode function return TI support. In the above example dept_no is expression. ) Question 3:- Example of Decode Function in Oracle

Question 2:- Syntax of the Decode FunctionĭECODE (expression, search, result. Decode helps to perform IF-THEN-ELSE logic in the SQL query. Question 1:- What is Decode in Oracle?ĭecode is a function in Oracle which helps to transfer your data to the another data. In this blog post, we will understand some basic difference between Case and Decode in Oracle with the help of some questions and answer.

Oracle decode plus#

The Oracle CASE statements can do all that DECODE does plus lot of other things including IF-THEN analysis, use of any comparison operator and checking multiple conditions, all in a SQL query itself.

In this SQL Tutorial, We will explore about the Difference between Case and Decode in Oracle. DECODE is considered one of the most powerful functions in Oracle, but the Oracle CASE statement is even better.The Oracle 8i release introduced the CASE expression.