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mysql查询某个日期最接近的数据
SELECT *, abs(UNIX_TIMESTAMP(begin_time)-UNIX_TIMESTAMP('2019-04-08')) as min from ox_hand_machine_activity_device GROUP BY min desc 注 abs方法 取绝对值排序原创 2019-04-08 09:35:10 · 5578 阅读 · 0 评论 -
mysql去除特殊字符
UPDATE cacrm_ca_crm_user SET job_code=REPLACE( REPLACE( REPLACE( REPLACE(job_code,CHAR(34),''), CHAR(13), '' ), CHAR(10), '' ), CHAR...原创 2019-05-06 10:11:38 · 3254 阅读 · 0 评论 -
一张表查4级递归
SELECT * FROM ( SELECT c.id, a.`name`, r.`name` as rname, m.`name` as mname FROM cacrm_ca_crm_user c LEFT JOIN cacrm_ca_crm_user a ON a...原创 2019-07-02 17:43:26 · 188 阅读 · 0 评论 -
golang excel 导入mysql
package main import ( "fmt" "github.com/xuri/excelize" "log" "reflect" "strconv" "time" ) type ExcelData interface { CreateMap(arr []string) map[string]interface{} ChangeTim...转载 2019-07-02 17:45:27 · 1857 阅读 · 1 评论 -
mysql连表查询另一张表符合条件数据
SELECT u.openid,u.nickName,o.order_id,o.real_total_fee,i.venue_id,GROUP_CONCAT(i.time SEPARATOR ',') as time,GROUP_CONCAT(i.time_zone SEPARATOR ',') as time_zone,o.payment,o.state,o.created_at FRO...原创 2019-06-27 15:06:38 · 2502 阅读 · 0 评论 -
mysql连接两个字段并进行多表联查
SELECT u.openid,o.user_name,o.student_phone,o.order_id,o.price,o.payment,c.duration,o.course_num,t.courses_type,a.coach_name,concat_ws('-',o.created_at,o.over_time) as expire_time,c.is_field,o.cla...原创 2019-07-09 11:24:32 · 5161 阅读 · 0 评论 -
mysql备份表
create table cacrm_ca_crm_user_new like cacrm_ca_crm_user insert into cacrm_ca_crm_user_new select * from cacrm_ca_crm_user原创 2019-07-12 16:58:40 · 187 阅读 · 0 评论 -
mysql多表统计
SELECT g.* FROM ( SELECT SUM( IF ( a.`status` = 'xcasd' OR a.`status` = 'safasf' OR a.`status` = 'd进' OR t.`status` = "dfsdf", 1, 0 ) ) AS kj_conversion, SUM( IF ( b.`type` = '士大夫', 1,...原创 2019-07-10 15:14:42 · 2046 阅读 · 1 评论 -
mysql 存储过程
CREATE PROCEDURE addCacrmUser ( ) BEGIN DECLARE error INTEGER DEFAULT 1; DECLARE existsFlag VARCHAR ( 255 ) DEFAULT ""; DECLARE back_id VARCHAR ( 255 ) DEFAULT ""; ...原创 2019-08-06 14:01:25 · 163 阅读 · 0 评论
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