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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 · SELECT a.AVGDate ,AVG(sd.Value) AvgResult FROM #SampleData sd JOIN ( SELECT DATEADD(minute, DATEDIFF(minute,0,DATEADD(s,30,CAST(AVG(CAST(sd.Date AS Float)) AS Datetime))),0) AVGDate ,dateadd(minute, datediff(minute,0,sd.Date) / 5 * 5, 0) Interval FROM #SampleData sd GROUP BY dateadd(minute, datediff(minute,0,sd.Date) / 5 * 5, 0) ) a ON dateadd ...
23 kwi 2011 · In SQL Server the equivalent code is CASE statement. Here are the examples regarding how DECODE can be written in SQL Server. SELECT CASE WHEN Letters = 'First' THEN 1. WHEN Letters = 'Second' THEN 2. WHEN Letters = 'Third' THEN 3. ELSE 0 END AS LN. FROM LettersTable. Here are few alternative blog posts.
22 cze 2022 · Learn various ways to calculate the average of a set of SQL Server rows using the AVG function along with several use cases and examples.
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 ...
3 wrz 2024 · AVG computes the average of a set of values by dividing the sum of those values by the count of non-null values. If the sum exceeds the maximum value for the data type of the return value, AVG() returns an error.
SQL Server AVG() function is an aggregate function that returns the average value of a group. The following illustrates the syntax of the AVG() function: AVG([ALL | DISTINCT] expression) Code language: SQL (Structured Query Language) ( sql )
