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8 gru 2016 · While a CASE based solution works for most cases, it probably doesn't take into account NULL values. Oracle's DECODE is NULL safe, meaning that. DECODE(a, b, c, d, e, f) Translates to this standard SQL expression (which can be used starting with SQL Server 2022):
23 sie 2016 · The functions for this should be: AVG(VALUE), DATEDIFF(datepart, startdate, enddate) with datepart=minute and/or DATEADD (datepart, number, date) I didn't find an interval function (Transact-SQL) Update. Example of what I really want to do here:
23 kwi 2011 · One of the readers of the blog has sent me a question regarding how to use the DECODE function in SQL Server. SELECT DECODE(Letters, 'First',1, 'Second',2, 'Third',3, 0) AS LN. FROM LettersTable. In SQL Server the equivalent code is CASE statement.
SELECT DECODE (3, 1, 'Equal 1,', 2, 'Equal 2', 'Not Equal 1 or 2'); Code language: SQL (Structured Query Language) (sql) This example works like the following IF-THEN-ELSEIF-ELSE statement: IF 3 = 1 THEN RETURN 'Equal 1'; ELSE IF 3 =2 THEN RETURN 'Equal 2'; ELSE RETURN 'Not Equal 1 or 2'; END IF ; Code language: SQL (Structured Query Language ...
22 cze 2022 · Let's get the average sales price by using this SQL function AVG on column Price where the cost of each product that is sold is shown.
If you use the AVG() function with a GROUP BY clause, the AVG() function returns a single value for each group instead of a single value for the whole table. The following example uses the AVG() function with the GROUP BY clause to retrieve the average list price for each product category:
DECODE allows you to compare a value to a set of possible values and return a corresponding result when a match is found. It is often used for data transformation, simplifying complex CASE statements, and providing concise value substitution based on specific conditions.
