技術標籤：工作記錄mysql

例:
created: 表中日期欄位
totalCount: 統計的總數
APICallServiceCount: 統計條件1的總數
DataViewServiceCount: 統計條件2的總數
CombinedServiceCount: 統計條件3的總數
apply_category: 條件欄位

SELECT
                a.created,
                ifnull( b.totalCount, 0 ) AS totalCount,
                ifnull( b.APICallService, 0 ) AS APICallServiceCount,
                ifnull( b.DataViewService, 0 ) AS DataViewServiceCount,
                ifnull( b.CombinedService, 0 ) AS CombinedServiceCount
        FROM
                (
                        SELECT
                                curdate() AS created UNION ALL
                        SELECT
                                date_sub( curdate(), INTERVAL 1 DAY ) AS created UNION ALL
                        SELECT
                                date_sub( curdate(), INTERVAL 2 DAY ) AS created UNION ALL
                        SELECT
                                date_sub( curdate(), INTERVAL 3 DAY ) AS created UNION ALL
                        SELECT
                                date_sub( curdate(), INTERVAL 4 DAY ) AS created UNION ALL
                        SELECT
                                date_sub( curdate(), INTERVAL 5 DAY ) AS created UNION ALL
                        SELECT
                                date_sub( curdate(), INTERVAL 6 DAY ) AS created
                        ) a
                        LEFT JOIN (
                        SELECT
                                date ( created ) AS created,
                count( id ) AS totalCount,
                SUM( CASE WHEN apply_category = '01' THEN 1 ELSE 0 END ) AS APICallService,
                SUM( CASE WHEN apply_category = '02' THEN 1 ELSE 0 END ) AS DataViewService,
                SUM( CASE WHEN apply_category = '03' THEN 1 ELSE 0 END ) AS CombinedService
                FROM
		表名
        GROUP BY
                date ( created )
        ORDER BY
                date ( created ) ASC
                ) b ON a.created = b.created