Αποτελέσματα Αναζήτησης
1 Ιουν 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.
21 Αυγ 2012 · If you want to write your own functions to encrypt and decrypt data, you would simply want to call the DBMS_CRYPTO encrypt and decrypt methods with appropriate parameters (i.e. pick your encryption algorithm, your key, etc.).
The Oracle DECODE() function allows you to add the procedural if-then-else logic to the query. In the following example, the Oracle DECODE() function compares the first argument (1) with the second argument (1).
This Oracle tutorial explains how to use the Oracle / PLSQL DECODE function with syntax and examples. The Oracle / PLSQL DECODE function has the functionality of an IF-THEN-ELSE statement.
Syntax: DECODE( expression, search, result, search, result... , default ) Parameters: expression: It is used to specify the value to be compared. search: It is used to specify the value to be compared against expression. result: It is used to specify the value to return, if expression is equal to search.
The syntax for the DECODE function is as follows: DECODE(expression, search1, result1, [search2, result2, ...], [default]) Parameters: expression: The value or column to be evaluated. searchN: The search value to compare with the expression.
6 Αυγ 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.
