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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).
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Summary: in this tutorial, you will learn how to use the...
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1 Ιουν 2023 · Learn how to use the Oracle DECODE function to perform IF-THEN-ELSE comparisons with examples. Compare DECODE with CASE, NULL values, and other operators.
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.
10 Ιουλ 2014 · DECODE(a, b,c, d,e, f,g, ..., h) will compare a to b, d, f, etc., in turn. If a is b, then DECODE returns c; if a is d, then DECODE returns e; and so on. If a is not any of these, then DECODE returns h. (The h is optional; the default return-value, if h is not given, is NULL.)
Purpose. 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.
Syntax: decode ( expression , compare_value, return_value, [,compare, return_value] ... [,default_return_value] ) with: expression is the value to evaluate. compare_value is the value that can match the evaluated value. return_value is the value that is returned if compare_value equals the value.
The Decode function compares one expression to one or more other expressions and, when the search term is found, returns the match result expression. Decode syntax. DECODE (expression , search, result [, search , result]... [, default]) Decode example. SELECT s.STUDENT_ID, s.FIRST_NAME, s.LAST_NAME, s.CITY,
