Mysql基础

1. 导入导出(备忘)
mysqldump -h localhost -u root -p zp91a1_db>d:/mytable.sql

mysql -h 219.136.252.35 -P 3312  -u zp91a1 -p zp91a1db < d:/mytable.sql

2. update
UPDATE keyword,CRAWLER_TAG SET keyword.description=CRAWLER_TAG.tag_desc where CRAWLER_TAG.tag_name=keyword.keyword_name;