转载：SQL按照日、周、月、年统计数据的方法

--按日
select sum(consume),day([date]) from consume_record where year([date]) = '2006' group by day([date])

--按周quarter
select sum(consume),datename(week,[date]) from consume_record where year([date]) = '2006' group by datename(week,[date])

--按月
select sum(consume),month([date]) from consume_record where year([date]) = '2006' group by month([date])

--按季
select sum(consume),datename(quarter,[date]) from consume_record where year([date]) = '2006' group by datename(quarter,[date])

--按年
select sum(consume),year([date]) from consume_record where group by year([date])

方式二：

sqlserver 截取日期年份和月份使用datepart函数,函数使用方法如下：

一、函数功能：DATEPART() 函数用于返回日期/时间的单独部分，比如年、月、日、小时、分钟等等。

二、语法：DATEPART(datepart,date)

三、参数说明：date 参数是合法的日期表达式。datepart 参数可以是下列的值：

四、实例

1、截取年份：datepart(yy,'2017-1-1') 返回：2017

2、截取月份：datepart(mm,'2017-1-1') 返回：1

五、datepart函数返回的是整型数值，如果需要返回字符型，那么使用datename()函数,用法与datepart相同，只是返回数据类型不同。

常见错误

--选择列表中的列 'dbo.v_yjdatealljg.cjrq' 无效，因为该列没有包含在聚合函数或 GROUP BY 子句中。
--把所有按组排序的依据都加上 yjxzqid, cjdd, ncpid, YEAR([cjrq]), month([cjrq])
--去掉农产品名称 ncpmc
SELECT yjxzqid, cjdd, ncpid, YEAR([cjrq]) as [year], month([cjrq]) as [month], avg( ttjg)as ttjg, avg(pfjg)as pfjg, avg(lsjg)as lsjg
FROM dbo.v_yjdatealljg group by yjxzqid, cjdd, ncpid, YEAR([cjrq]), month([cjrq])

DATE_FORMAT

select DATE_FORMAT(create_time,'%Y%u') weeks,count(caseid) count from tc_case group by weeks;
select DATE_FORMAT(create_time,'%Y%m%d') days,count(caseid) count from tc_case group by days;
select DATE_FORMAT(create_time,'%Y%m') months,count(caseid) count from tc_case group by months;

DATE_FORMAT(date,format)
根据format字符串格式化date值。下列修饰符可以被用在format字符串中：
%M 月名字(January……December)
%W 星期名字(Sunday……Saturday)
%D 有英语前缀的月份的日期(1st, 2nd, 3rd, 等等。）
%Y 年, 数字, 4 位
%y 年, 数字, 2 位
%a 缩写的星期名字(Sun……Sat)
%d 月份中的天数, 数字(00……31)
%e 月份中的天数, 数字(0……31)
%m 月, 数字(01……12)
%c 月, 数字(1……12)
%b 缩写的月份名字(Jan……Dec)
%j 一年中的天数(001……366)
%H 小时(00……23)
%k 小时(0……23)
%h 小时(01……12)
%I 小时(01……12)
%l 小时(1……12)
%i 分钟, 数字(00……59)
%r 时间,12 小时(hh:mm:ss [AP]M)
%T 时间,24 小时(hh:mm:ss)
%S 秒(00……59)
%s 秒(00……59)
%p AM或PM
%w 一个星期中的天数(0=Sunday ……6=Saturday ）
%U 星期(0……52), 这里星期天是星期的第一天
%u 星期(0……52), 这里星期一是星期的第一天
%% 一个文字“%”。

本文只是记录在项目中用到的统计的SQL语句，记一笔以防忘了

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/// <summary>
   /// 获取统计数据
   /// </summary>
   /// <param name="CKEY">店面ckey</param>
   /// <param name="type">统计类型（日、周、月、年）</param>
   /// <returns></returns>
   [WebMethod(true)]
   public static string GetData3(string CKEY, string type)
   {
     StringBuilder strSql = new StringBuilder();
      
     #region SQL语句
 
     if (type == "0")
     {
       #region 日
       strSql.AppendFormat(" WITH  WeekDate ");
       strSql.AppendFormat("     AS ( SELECT  DATEADD(d, -DAY(GETDATE()) + 1, GETDATE()) AS riqi ");
       strSql.AppendFormat("       UNION ALL ");
       strSql.AppendFormat("       SELECT  riqi + 1 FROM   WeekDate ");
       strSql.AppendFormat("       WHERE  riqi + 1 <= ( SELECT  DATEADD(d, -DAY(GETDATE()), DATEADD(m, 1, GETDATE())) ) ");
       strSql.AppendFormat("      ) ");
       strSql.AppendFormat("  SELECT CONVERT(CHAR(8), a.riqi, 112) AS 日 ,DAY (CONVERT(CHAR(8), a.riqi, 112)) AS DDay, ");
       strSql.AppendFormat("      ISNULL(tbB.日成交量, 0) AS 日成交量 , ");
       strSql.AppendFormat("      CASE WHEN CONVERT(CHAR(8), a.riqi, 112) > CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("        THEN NULL ");
       strSql.AppendFormat("        WHEN CONVERT(CHAR(8), a.riqi, 112) <= CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("        THEN ISNULL(tbB.日成交量, 0) ");
       strSql.AppendFormat("      END AS 日成交数量 , ");
       strSql.AppendFormat("      tbB.日实收金额 , ");
       strSql.AppendFormat("      CASE WHEN CONVERT(CHAR(8), a.riqi, 112) > CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("        THEN NULL ");
       strSql.AppendFormat("        WHEN CONVERT(CHAR(8), a.riqi, 112) <= CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("        THEN ISNULL(tbB.日实收金额, 0) ");
       strSql.AppendFormat("      END AS 日实收金额2 ");
       strSql.AppendFormat("  FROM  WeekDate a ");
       strSql.AppendFormat("      LEFT JOIN ( SELECT ( SELECT  COUNT(1) ");
       strSql.AppendFormat("                 FROM   dbo.CustomerBase base ");
       strSql.AppendFormat("                 WHERE   CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                      AND " + impomo.TotalConsumptionMon + " > 0 ");
       strSql.AppendFormat("                      AND TargetDate = cus.TargetDate ");
       strSql.AppendFormat("                ) 日成交量 , ");
       strSql.AppendFormat("                ISNULL(( SELECT SUM(Total) ");
       strSql.AppendFormat("                    FROM  ( SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("                         FROM   PaymentContent AS pay ");
       strSql.AppendFormat("                         WHERE   PayDate = cus.TargetDate ");
       strSql.AppendFormat("                              AND pay.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                         UNION ALL ");
       strSql.AppendFormat("                         SELECT  SUM(CONVERT(FLOAT, ISNULL(RecMoney, 0))) AS Total ");
       strSql.AppendFormat("                         FROM   dbo.CardRecharge8 AS recharge ");
       strSql.AppendFormat("                         WHERE   RechargDate = cus.TargetDate ");
       strSql.AppendFormat("                              AND recharge.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                         UNION ALL ");
       strSql.AppendFormat("                         SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("                         FROM   dbo.PaymentSwimming AS payswim ");
       strSql.AppendFormat("                         WHERE   PayDate = cus.TargetDate ");
       strSql.AppendFormat("                              AND payswim.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                         UNION ALL ");
       strSql.AppendFormat("                         SELECT  SUM(CONVERT(FLOAT, ISNULL(( wp1 + wp2 + wp3 + wp4 + wp5 ), 0))) AS Total ");
       strSql.AppendFormat("                         FROM   WarePaymentContent AS ware ");
       strSql.AppendFormat("                         WHERE   PayDate = cus.TargetDate ");
       strSql.AppendFormat("                              AND ware.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                        ) B ");
       strSql.AppendFormat("                   ), 0) AS 日实收金额 , ");
       strSql.AppendFormat("                TargetDate 日 ");
       strSql.AppendFormat("            FROM  dbo.CustomerBase cus ");
       strSql.AppendFormat("            WHERE  YEAR(TargetDate) = YEAR(GETDATE()) ");
       strSql.AppendFormat("                AND MONTH(TargetDate) = MONTH(GETDATE()) ");
       strSql.AppendFormat("            GROUP BY TargetDate ");
       strSql.AppendFormat("           ) AS tbB ON CONVERT(CHAR(8), a.riqi, 112) = tbB.日 ");
       #endregion
     }
     else if (type == "1")
     {
       #region 周
       strSql.AppendFormat(" WITH  WeekDate ");
       strSql.AppendFormat("       AS ( SELECT  DATEADD(wk, DATEDIFF(wk, 0, GETDATE()), 0) AS riqi ");
       strSql.AppendFormat("         UNION ALL ");
       strSql.AppendFormat("         SELECT  riqi + 1 FROM   WeekDate ");
       strSql.AppendFormat("         WHERE  riqi + 1 <= ( SELECT  DATEADD(wk, DATEDIFF(wk, 0, GETDATE()), 6) ) ");
       strSql.AppendFormat("        ) ");
       strSql.AppendFormat("    SELECT CONVERT(CHAR(8), a.riqi, 112) AS 日 , ");
       strSql.AppendFormat("        DATENAME(weekday,CONVERT(CHAR(8), a.riqi, 112)) DDay, ");
       strSql.AppendFormat("        ISNULL(tbB.日成交量, 0) AS 日成交量 , ");
       strSql.AppendFormat("        CASE WHEN CONVERT(CHAR(8), a.riqi, 112) > CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("          THEN NULL ");
       strSql.AppendFormat("          WHEN CONVERT(CHAR(8), a.riqi, 112) <= CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("          THEN ISNULL(tbB.日成交量, 0) ");
       strSql.AppendFormat("        END AS 日成交数量 , ");
       strSql.AppendFormat("        tbB.日实收金额 , ");
       strSql.AppendFormat("        CASE WHEN CONVERT(CHAR(8), a.riqi, 112) > CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("          THEN NULL ");
       strSql.AppendFormat("          WHEN CONVERT(CHAR(8), a.riqi, 112) <= CONVERT(CHAR(8), GETDATE(), 112) ");
       strSql.AppendFormat("          THEN ISNULL(tbB.日实收金额, 0) ");
       strSql.AppendFormat("        END AS 日实收金额2 ");
       strSql.AppendFormat("    FROM  WeekDate a ");
       strSql.AppendFormat("        LEFT JOIN ( SELECT ( SELECT  COUNT(1) ");
       strSql.AppendFormat("                   FROM   dbo.CustomerBase base ");
       strSql.AppendFormat("                   WHERE   CKEY = '{0}'", CKEY);
       strSql.AppendFormat("                        AND " + impomo.TotalConsumptionMon + " > 0 ");
       strSql.AppendFormat("                        AND TargetDate = cus.TargetDate ");
       strSql.AppendFormat("                  ) 日成交量 , ");
       strSql.AppendFormat("                  ISNULL(( SELECT SUM(Total) ");
       strSql.AppendFormat("                      FROM  ( SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("                           FROM   PaymentContent AS pay ");
       strSql.AppendFormat("                           WHERE   PayDate = cus.TargetDate ");
       strSql.AppendFormat("                                AND pay.CKEY = '{0}'", CKEY);
       strSql.AppendFormat("                           UNION ALL ");
       strSql.AppendFormat("                           SELECT  SUM(CONVERT(FLOAT, ISNULL(RecMoney, 0))) AS Total ");
       strSql.AppendFormat("                           FROM   dbo.CardRecharge8 AS recharge ");
       strSql.AppendFormat("                           WHERE   RechargDate = cus.TargetDate ");
       strSql.AppendFormat("                                AND recharge.CKEY = '{0}'", CKEY);
       strSql.AppendFormat("                           UNION ALL ");
       strSql.AppendFormat("                           SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("                           FROM   dbo.PaymentSwimming AS payswim ");
       strSql.AppendFormat("                           WHERE   PayDate = cus.TargetDate ");
       strSql.AppendFormat("                                AND payswim.CKEY = '{0}'", CKEY);
       strSql.AppendFormat("                           UNION ALL ");
       strSql.AppendFormat("                           SELECT  SUM(CONVERT(FLOAT, ISNULL(( wp1 + wp2 + wp3 + wp4 + wp5 ), 0))) AS Total ");
       strSql.AppendFormat("                           FROM   WarePaymentContent AS ware ");
       strSql.AppendFormat("                           WHERE   PayDate = cus.TargetDate ");
       strSql.AppendFormat("                                AND ware.CKEY = '{0}'", CKEY);
       strSql.AppendFormat("                          ) B ");
       strSql.AppendFormat("                     ), 0) AS 日实收金额 , ");
       strSql.AppendFormat("                  TargetDate 日 ");
       strSql.AppendFormat("              FROM  dbo.CustomerBase cus ");
       strSql.AppendFormat("              WHERE  DATEPART(wk, TargetDate) = DATEPART(wk, GETDATE()) ");
       strSql.AppendFormat("                  AND DATEPART(yy, TargetDate) = DATEPART(yy, GETDATE()) ");
       strSql.AppendFormat("              GROUP BY TargetDate ");
       strSql.AppendFormat("             ) AS tbB ON CONVERT(CHAR(8), a.riqi, 112) = tbB.日 ");
       #endregion
     }
     else if (type == "2")
     {
       #region 月
 
       strSql.AppendFormat("SELECT YearMonth.月 , ");
       strSql.AppendFormat("    tb.月成交量 , ");
       strSql.AppendFormat("    CASE WHEN YearMonth.月 > MONTH(GETDATE()) THEN NULL ");
       strSql.AppendFormat("      WHEN YearMonth.月 <= MONTH(GETDATE()) THEN ISNULL(tb.月成交量, 0) ");
       strSql.AppendFormat("    END AS 月成交数量 , ");
       strSql.AppendFormat("    tb.月实收总金额 , ");
       strSql.AppendFormat("    CASE WHEN YearMonth.月 > MONTH(GETDATE()) THEN NULL ");
       strSql.AppendFormat("      WHEN YearMonth.月 <= MONTH(GETDATE()) THEN ISNULL(tb.月实收总金额, 0) ");
       strSql.AppendFormat("    END AS 月实收总金额2 ");
       strSql.AppendFormat(" FROM   ( SELECT 1 AS 月 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 ");
       strSql.AppendFormat("       UNION SELECT 7 UNION SELECT 8 UNION SELECT 9 UNION SELECT 10 UNION SELECT 11 UNION SELECT 12 ");
       strSql.AppendFormat("      ) AS YearMonth ");
       strSql.AppendFormat("    LEFT JOIN ( SELECT ( SELECT  COUNT(1) ");
       strSql.AppendFormat("               FROM   dbo.CustomerBase base ");
       strSql.AppendFormat("               WHERE   CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                    AND " + impomo.TotalConsumptionMon + " > 0 ");
       strSql.AppendFormat("                    AND MONTH(TargetDate) = MONTH(cus.TargetDate) ");
       strSql.AppendFormat("              ) 月成交量 , ");
       strSql.AppendFormat("              ISNULL(( SELECT SUM(Total) ");
       strSql.AppendFormat("                  FROM  ( SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("                       FROM   PaymentContent AS pay ");
       strSql.AppendFormat("                       WHERE   MONTH(PayDate) = MONTH(cus.TargetDate) ");
       strSql.AppendFormat("                            AND pay.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                       UNION ALL ");
       strSql.AppendFormat("                       SELECT  SUM(CONVERT(FLOAT, ISNULL(RecMoney, 0))) AS Total ");
       strSql.AppendFormat("                       FROM   dbo.CardRecharge8 AS recharge ");
       strSql.AppendFormat("                       WHERE   MONTH(RechargDate) = MONTH(cus.TargetDate) ");
       strSql.AppendFormat("                            AND recharge.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                       UNION ALL ");
       strSql.AppendFormat("                       SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("                       FROM   dbo.PaymentSwimming AS payswim ");
       strSql.AppendFormat("                       WHERE   MONTH(PayDate) = MONTH(cus.TargetDate) ");
       strSql.AppendFormat("                            AND payswim.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                       UNION ALL ");
       strSql.AppendFormat("                       SELECT  SUM(CONVERT(FLOAT, ISNULL(( wp1 + wp2 + wp3 + wp4 + wp5 ), 0))) AS Total ");
       strSql.AppendFormat("                       FROM   WarePaymentContent AS ware ");
       strSql.AppendFormat("                       WHERE   MONTH(PayDate) = MONTH(cus.TargetDate) ");
       strSql.AppendFormat("                            AND ware.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("                      ) B ");
       strSql.AppendFormat("                 ), 0) AS 月实收总金额 , ");
       strSql.AppendFormat("              MONTH(TargetDate) 月 ");
       strSql.AppendFormat("          FROM  dbo.CustomerBase cus ");
       strSql.AppendFormat("          WHERE  YEAR(TargetDate) = YEAR(GETDATE()) ");
       strSql.AppendFormat("          GROUP BY MONTH(cus.TargetDate) ");
       strSql.AppendFormat("         ) AS tb ON YearMonth.月 = tb.月 ");
       #endregion
     }
     else if (type == "3")
     {
       #region 年
       strSql.AppendFormat("SELECT ( SELECT  COUNT(1) ");
       strSql.AppendFormat("       FROM   dbo.CustomerBase base ");
       strSql.AppendFormat("       WHERE   CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("            AND " + impomo.TotalConsumptionMon + " > 0 ");
       strSql.AppendFormat("            AND YEAR(TargetDate) = YEAR(cus.TargetDate) ");
       strSql.AppendFormat("      ) 年成交量 , ");
       strSql.AppendFormat("      CONVERT(NVARCHAR(20),CONVERT(DECIMAL(18,2),ISNULL(( SELECT SUM(Total) ");
       strSql.AppendFormat("          FROM  ( SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("               FROM   PaymentContent AS pay ");
       strSql.AppendFormat("               WHERE   YEAR(PayDate) = YEAR(cus.TargetDate) ");
       strSql.AppendFormat("                    AND pay.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("               UNION ALL ");
       strSql.AppendFormat("               SELECT  SUM(CONVERT(FLOAT, ISNULL(RecMoney, 0))) AS Total ");
       strSql.AppendFormat("               FROM   dbo.CardRecharge8 AS recharge ");
       strSql.AppendFormat("               WHERE   YEAR(RechargDate) = YEAR(cus.TargetDate) ");
       strSql.AppendFormat("                    AND recharge.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("               UNION ALL ");
       strSql.AppendFormat("               SELECT  SUM(CONVERT(FLOAT, ISNULL(( pc1 + pc2 + pc3 + pc4 + pc5 ), 0))) AS Total ");
       strSql.AppendFormat("               FROM   dbo.PaymentSwimming AS payswim ");
       strSql.AppendFormat("               WHERE   YEAR(PayDate) = YEAR(cus.TargetDate) ");
       strSql.AppendFormat("                    AND payswim.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("               UNION ALL ");
       strSql.AppendFormat("               SELECT  SUM(CONVERT(FLOAT, ISNULL(( wp1 + wp2 + wp3 + wp4 + wp5 ), 0))) AS Total ");
       strSql.AppendFormat("               FROM   WarePaymentContent AS ware ");
       strSql.AppendFormat("               WHERE   YEAR(PayDate) = YEAR(cus.TargetDate) ");
       strSql.AppendFormat("                    AND ware.CKEY = '{0}' ", CKEY);
       strSql.AppendFormat("              ) B ");
       strSql.AppendFormat("         ), 0))) AS 年实收总金额 , ");
       strSql.AppendFormat("      YEAR(TargetDate) 年 ");
       strSql.AppendFormat("  FROM  dbo.CustomerBase cus ");
       strSql.AppendFormat("  GROUP BY YEAR(TargetDate) ");
       #endregion
     }
 
     #endregion
 
     DataTable table = DBHelper.GetDateTable(strSql.ToString());
     string rs = Newtonsoft.Json.JsonConvert.SerializeObject(table);

转载：SQL按照日、周、月、年统计数据的方法

SQL按照日、周、月、季度、年统计数据的方法