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 SettledBatchList WHERE IncludeStatistics = 'True'
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 TotalCharge) AS DistinctValues FROM SettledBatchList WHERE IncludeStatistics = 'True'
AVG
カラムの値の平均を返します。
SELECT Product, AVG(AnnualRevenue) FROM SettledBatchList WHERE IncludeStatistics = 'True' GROUP BY Product
MIN
カラムの値の最小値を返します。
SELECT MIN(AnnualRevenue), Product FROM SettledBatchList WHERE IncludeStatistics = 'True' GROUP BY Product
MAX
カラムの値の最大値を返します。
SELECT Product, MAX(AnnualRevenue) FROM SettledBatchList WHERE IncludeStatistics = 'True' GROUP BY Product
SUM
カラムの値の合計を返します。
SELECT SUM(AnnualRevenue) FROM SettledBatchList WHERE IncludeStatistics = 'True'