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5 Σεπ 2013 · If you mean AND rather than OR then this can be done using a decode: decode(status_a,'Y', decode(status_b,'Y','Y','N'), 'N') or this could be simplified to: decode(status_a||status_b,'YY','Y','N')
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.
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. Description. The Oracle/PLSQL DECODE function has the functionality of an IF-THEN-ELSE statement. Syntax. The syntax for the DECODE function in Oracle/PLSQL is: DECODE( expression , search , result [, search , result]... [, default] )
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.
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.
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.
