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6 sie 2024 · This tutorial provides a comprehensive guide to using the SQL DECODE() function in Oracle. I will also compare DECODE() to CASE WHEN in Oracle and help you understand when to use each function. Finally, I will provide code for the equivalent transformations in SQL Server, PostgreSQL, and MySQL.
This tutorial shows you how to use the Oracle DECODE() function to add the procedural if-then-else logic to SQL queries.
1 cze 2023 · The purpose of the Oracle DECODE function is to perform an IF-THEN-ELSE function. It’s similar to a CASE statement, but CASE is a statement where DECODE is a function. It allows you to provide a value, and then evaluate other values against it and show different results.
5 wrz 2024 · DECODE function in SQL allows us to add procedural if-then-else logic to the query. Learning the various ways to use DECODE, its syntax with examples.
This tutorial shows you how to use the SQL DECODE function to add if then else logic to queries to make them more powerful and flexible.
13 lis 2019 · The MySQL DECODE() function returns empty strings if the encoded string is an empty string. The DECODE() function accepts two parameters which are the encoded string to be decoded and the password string to decode the encoded string.
16 sty 2011 · You can use IF() where in Oracle you would have used DECODE(). mysql> select if(emp_id=1,'X','Y') as test, emp_id from emps;
