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. 关于在C++中调用R函数以及RCpp使用

    最近因为项目要用到,所以在想办法把R语言用到C++中. 网上查了看到有一个Rcpp的工具.所以在这里总结一下. 现在能想到的几种在C++中调用R语言的方法如下: 1. 使用Rcpp R高级编程技巧及R ...

  2. Vue 进阶之路(十)

    之前的文章介绍了 vue 的组件化,本章我们来看一下 vue 中组件的原生事件. <!DOCTYPE html> <html lang="en"> < ...

  3. Day 22 面向对象知识.

    https://www.cnblogs.com/bigberg/p/7252349.html #类方法,静态方法, 属性方法. 类有两种作用:属性引用 和实例化.属性引用(类名.属性)class pe ...

  4. 关于finecms v5 会员头像 任意文件上传漏洞分析

    看到我私藏的一个洞被别人提交到补天拿奖金,所以我干脆在社区这里分享,给大家学习下 本文原创作者:常威,本文属i春秋原创奖励计划,未经许可禁止转载! 1.定位功能 下载源码在本地搭建起来后,正常登陆了用 ...

  5. Flask从入门到精通之使用Flask-Migrate实现数据库迁移

    在开发程序的过程中,你会发现有时需要修改数据库模型,而且修改之后还需要更新数据库.仅当数据库表不存在时,Flask-SQLAlchemy 才会根据模型进行创建.因此,更新表的唯一方式就是先删除旧表,不 ...

  6. 为什么有监听socket和连接socket,为什么产生两个socket

    为什么有监听socket和连接socket,为什么产生两个socket 先看一半的socket建立连接的双方的过程: 客户端: socket()---->创建出 active_socket_fd ...

  7. 4. Neural Network

    1. 神经网络 首先引入一些便于稍后讨论的新标记: $L$:代表神经网络层数$S_l$:代表第$l$层处理单元的个数$K$:代表多分类中类别种数 2. 前向传播(forward propagation ...

  8. 【洛谷mNOIP模拟赛Day1】T1 斐波那契

    题目传送门:https://www.luogu.org/problemnew/show/P3938 这题出得特别吼啊~~ 通过打表或者大胆猜想斐波那契数列的一些性质,我们不难发现对于一只兔子$x$,其 ...

  9. WebDriverAPI(4)

    单击某个元素 采用元素id.click()方法即可 双击某个元素id.doubleClick 操作单选下拉列表 测试网页HTML代码 <html> <body> <sel ...

  10. WebDriverAPI(3)

    获取页面的Title属性 被测网址http:http://www.baidu.com Java语言版本的API实例代码 String url = "http://www.baidu.com& ...