转载源:http://www.jb51.net/article/42613.htm

SQL按照日、周、月、季度、年统计数据的方法

方式一:

--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

1
2
3
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

 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
/// <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、年统计数据的方法的更多相关文章

  1. Flex自定义组件开发之日周月日期选择日历控件

    原文:Flex自定义组件开发之日周月日期选择日历控件         使用过DateField的我们都知道,DateField 控件是用于显示日期的文本字段,字段右侧带有日历图标.当用户在控件边框内的 ...

  2. 【SQL Server性能优化】删除大量数据的方法比较

    原文:[SQL Server性能优化]删除大量数据的方法比较 如果你要删除表中的大量数据,这个大量一般是指删除大于10%的记录,那么如何删除,效率才会比较高呢? 而如何删除才会对系统的影响相对较小呢? ...

  3. pg按日,周,月进行数据统计

    pg数据库按周,月统计数据 SELECT date_trunc('WEEK', insert_time) as insertDate, SUM(data_increment) as dataTotal ...

  4. MySQL实现按天统计数据的方法

    一.首先生成一个日期表,执行SQL如下: CREATE TABLE num (i int); ), (), (), (), (), (), (), (), (), (); CREATE TABLE i ...

  5. PHP外部调用网站百度统计数据的方法详解

    目的:外部调用网站的百度统计(tongji.baidu.com)数据. 条件:1.具备调用目标网站的百度统计平台管理权限 2.PHP环境支持curl函数. 原理:同PHP小偷程序原理,通过curl函数 ...

  6. mysql按日/周/月统计

    一.mysql按日统计 ) count ' and start_time > '2017-06-28' group by days; 二.mysql按周统计 ) ' group by weeks ...

  7. MySql 按日,按周,按月 分组 统计数据

    知识关键词:DATE_FORMAT 按天统计: SELECT DATE_FORMAT(create_time,'%Y%m%d') days, COUNT(caseid) count FROM tc_c ...

  8. MySql按周/月/日分组统计数据的方法

    知识关键词:DATE_FORMAT select DATE_FORMAT(create_time,'%Y%u') weeks,count(caseid) count from tc_case grou ...

  9. MySql 按周/月/日统计数据的方法

    知识关键词:DATE_FORMAT  select DATE_FORMAT(create_time,'%Y%u') weeks,count(caseid) count from tc_case gro ...

随机推荐

  1. 利用bootstrap上传视频文件,mvc做后台处理

    @{ Layout = null; } <!DOCTYPE html> <html> <head> <meta name="viewport&quo ...

  2. 用MVC5+EF6+WebApi 做一个考试功能(六) 仓储模式 打造EF通用仓储类

    前言 年底工作比较忙,年度总结还没写,项目要上线,回老家过年各种准备.尤其是给长辈给侄子侄女准备礼物头都大了. 原来想年前先出一版能用的,我看有点悬了,尽量先把大体功能弄出来,扔掉一些,保证能考试,然 ...

  3. MySQL中整型和字符串类型指定长度的含义

    引入: int(5)和char(5)或者varchar(5)中的数字指的是什么意思?是字节数,还是字符长度?为什么在整型中指定了int(5)却可以输入123456? 答案是后者,不管是整型还是字符串类 ...

  4. express 重新加载

    1,res.location() 2. res.redirect() location()与redirect()的比较: Express的response对象,是对Node.js原生对象ServerR ...

  5. Elasticsearch分页

    Elasticsearch的数据都存在每个节点的分片中,当执行搜索时每个分片独立搜索后,数据再经过整合返回.ElasticSearch的搜索请求一次请求最大量为10000.如果超过则会发生错误.那么, ...

  6. Spring+Mybatis整合时 Failed to read candidate component class,Caused by:IllegalArgumentException

    Spring+Mybatis整合时Caused by: java.lang.IllegalArgumentException错误 org.springframework.beans.factory.B ...

  7. Java MVC和三层架构

    一.设计模式 Model 1 和Model 2 Model 1 前面学习了Servlet和Jsp,对这两个有个大概的认识,Servlet就是为了解决静态页面的问题,能够实现动态的页面,使维护,开发更加 ...

  8. webpack的安装与使用(单文件)

    在安装 Webpack 前,你本地环境必须已安装nodejs. 可以使用npm安装,当然由于 npm 安装速度慢,也可以使用淘宝的镜像及其命令cnpm(npm install -g cnpm --re ...

  9. linux 中 iptables关于ping的问题

    允许其他机器ping通防火墙 iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT iptables -A OUTPUT -p ic ...

  10. C++ 定时器Timer在项目中的使用

    目录 1.情况说明 2.空循环实现 3.定时器实现 1.情况说明 由于最近要在项目里做弹出弹幕,要求是弹出1秒后消失,一开始我使用空循环进行计时,发现执行到这段代码CPU占用率上升十几个百分点,后来改 ...