ADO.NET Provider for HubDB

Build 24.0.9062

集計関数

COUNT

クエリ条件に一致する行の数を返します。

SELECT COUNT(*) FROM NorthwindProducts WHERE Industry = 'Floppy Disks'

COUNT(DISTINCT)

クエリ条件に一致する、null 以外の個別のフィールド値の数を返します。

SELECT COUNT(DISTINCT PartitionKey) AS DistinctValues FROM NorthwindProducts WHERE Industry = 'Floppy Disks'

AVG

カラムの値の平均を返します。

SELECT Name, AVG(Price) FROM NorthwindProducts WHERE Industry = 'Floppy Disks'  GROUP BY Name

MIN

カラムの値の最小値を返します。

SELECT MIN(Price), Name FROM NorthwindProducts WHERE Industry = 'Floppy Disks' GROUP BY Name

MAX

カラムの値の最大値を返します。

SELECT Name, MAX(Price) FROM NorthwindProducts WHERE Industry = 'Floppy Disks' GROUP BY Name

SUM

カラムの値の合計を返します。

SELECT SUM(Price) FROM NorthwindProducts WHERE Industry = 'Floppy Disks'

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Build 24.0.9062