MySQL比较生僻的几种SQL
MySQL比较生僻的几种SQL,查看MYSQL 状态,show status,这些信息一般都是动态的,show variables;,查看MYSQL配置,这些信息一般都是
//txt文件入数据库
LOAD DATA INFILE 'data.txt' INTO TABLE table2
FIELDS TERMINATED BY ',';
//导出空的库表结构
mysqldump -d -u xxx -p resin_log> /temp/dump.sql
//查看MYSQL配置,这些信息一般都是静态的
show variables;
//查看MYSQL 状态,这些信息一般都是动态的
show status
//修改字段原有属性
ALTER TABLE ind_day_scale MODIFY COLUMN avg_pv double unsigned NOT NULL DEFAULT '0' COMMENT '新增PV/新增UV'
//更改一个字段的部分值
UPDATE day_resinlog_2012_06_12 SET access_time = REPLACE(access_time,'2012-06-12','2012-06-14')

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