mysql查询每月不重复的数目

mysql查询每月不重复的数据

 

Sql代码  

mysql> select * from product group by
concat(year(last_update),’-‘,week(last_update),day(last_update))
 order by last_update;  

 

或者 

Sql代码  

mysql> select * from product group by
date_format(last_update,’%Y-%m-%d  

‘) order by last_update;  

  www.2cto.com  

Sql代码  

+—–+————————-+———————+  

| id  | product                 | last_update         |  

+—–+————————-+———————+  

| 154 | new Ipda-39-76          | 2012-09-28 10:46:46 |  

| 155 | new Ipda-64-55-58       | 2012-09-29 10:46:46 |  

| 156 | new Ipda-3-61-65        | 2012-09-30 10:46:46 |  

| 157 | new Ipda-64-22-41-50    | 2012-10-01 10:46:46 |  

| 159 | new Ipda-64-36-93-27    | 2012-10-02 10:46:46 |  

| 160 | new Ipda-3-81-97-69     | 2012-10-03 10:46:46 |  

| 161 | new Ipda-64-22-99-5-64  | 2012-10-04 10:46:46 |  

| 122 | new Ipda-71             | 2012-10-05 10:46:46 |  

| 123 | new Ipda-64-29          | 2012-10-06 10:46:46 |  

| 124 | new Ipda-3-34           | 2012-10-07 10:46:46 |  

|  59 | new Ipda-39             | 2012-10-08 10:46:46 |  

|  60 | new Ipda-64-55          | 2012-10-09 10:46:46 |  

|  61 | new Ipda-3-61           | 2012-10-10 10:46:46 |  

|  62 | new Ipda-64-22-41       | 2012-10-11 10:46:46 |  

|  64 | new Ipda-64-36-93       | 2012-10-12 10:46:46 |  

|  65 | new Ipda-3-81-97        | 2012-10-13 10:46:46 |  

|  66 | new Ipda-64-22-99-5     | 2012-10-14 10:46:46 |  

|   1 | new Ipda                | 2012-10-15 10:46:46 |  

|   2 | new Ipda-64             | 2012-10-16 10:46:46 |  

|   3 | new Ipda-3              | 2012-10-17 10:46:46 |  

|   4 | new Ipda-64-22          | 2012-10-18 10:46:46 |  

|   7 | new Ipda-64-36          | 2012-10-19 10:46:46 |  

|   8 | new Ipda-3-81           | 2012-10-20 10:46:46 |  

|   9 | new Ipda-64-22-99       | 2012-10-21 10:46:46 |  

|  15 | new Ipda-3-17           | 2012-10-22 10:46:46 |  

|  16 | new Ipda-64-22-27       | 2012-10-23 10:46:46 |  

|  18 | new Ipda-64-36-38       | 2012-10-24 10:46:46 |  

|  19 | new Ipda-3-81-41        | 2012-10-25 10:46:46 |  

|  20 | new Ipda-64-22-99-90    | 2012-10-26 10:46:46 |  

|  34 | new Ipda-3-81-26        | 2012-10-27 10:46:46 |  

|  35 | new Ipda-64-22-99-10    | 2012-10-28 10:46:46 |  

|  38 | new Ipda-3-17-70        | 2012-10-29 10:46:46 |  

|  39 | new Ipda-64-22-27-36    | 2012-10-30 10:46:46 |  

|  41 | new Ipda-64-36-38-44    | 2012-10-31 10:46:46 |  

|  42 | new Ipda-3-81-41-9      | 2012-11-01 10:46:46 |  

|  43 | new Ipda-64-22-99-90-13 | 2012-11-02 10:46:46 |  

+—–+————————-+———————+  

36 rows in set  

http://www.bkjia.com/Mysql/488508.htmlwww.bkjia.comtruehttp://www.bkjia.com/Mysql/488508.htmlTechArticlemysql查询每月不重复的数据 Sql代码 mysql select *
from product group by
concat(year(last_update),-,week(last_update),day(last_update)) order
by last_update; 或者 Sql代码…

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