What is the difference between case and decode in Oracle?
DECODE is Oracle one, and the CASE is ANSI standard. As per my knowledge, CASE is a statement and DECODE is a function which was defined in the Standard package. If we use DECODE, the package has to load first, so it will take a little longer than the CASE. CASE is a simple statement which is ANSI standard. Lees verder »
What is the difference between case and decode?
DECODE: Decode is an function in sql. It's a way of converting a written code into understandable language. CASE: Case are the statement in sql. It's a way of responding to the occurrence of a value or what action to be performed when a particular value occurs. Lees verder »
What is decode in Oracle?
DECODE compares expr to each search value one by one. If expr is equal to a search , then Oracle Database returns the corresponding result . If no match is found, then Oracle returns default . If default is omitted, then Oracle returns null. Lees verder »
What is the use of case in Oracle?
The CASE statement allows you to select one sequence of statements to execute out of many possible sequences. They have been part of the SQL standard since 1992, although Oracle SQL didn't support CASE until the release of Oracle8i Database, and PL/SQL didn't support CASE until Oracle9i Database Release 1. Lees verder »
What is the difference between decode and if then else in Oracle?
Think of it as a simpler version of the IF-THEN-ELSE structure used in programming languages. DECODE evaluates a column or expression and transforms its value based on the conditions you specify. In essence, DECODE allows you to replace specific values with alternatives without writing complex procedural code. Lees verder »
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