xy417588879的博客

DROP TABLE school;CREATE TABLE `school` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `name` VARCHAR(50) DEFAULT NULL, `score` DECIMAL(10,2) DEFAULT NULL, PRIMARY KEY (`id`) )CHARSET=utf8; DELIMITER

Copy 高总新建文件夹：db_backup新建文件：backup.sh#!/bin/bash cd /data/db_backup now1=$(date +%F) now2=$(date +%F_%H_%M_%S) file1=${now2}_jlw_forum.sql file2=${now2}_jlw_mall.sql file3=${now2}_jlw_user.sql echo $now

instr 用法 SELECT sd.`value2` FROM `v_account_info` vai LEFT JOIN sys_dict sd ON sd.`name` = 'DEVICE_CATEGORY' AND instr(vai.`category_list`,concat(',',sd.`param`,','))>0 WHERE vai.`id` = 171; group

list中 根据条件封装成map private MapString, ListMapString, Object>>> formatArts(ListMapString, Object>> arts) { MapString, ListMapString, Object>>> results = new HashMap(); if (arts != null