msql数据库常用指令操作

数据库指令

创建数据库：create database db_name;

删除数据库：drop database db_name;

显示数据库：show databases；

导出数据库：mysqldump -uroot -P3306 -p db_name> f:db_name.sql

导入数据库：source f:/db_name.sql;

创建数据表：create table tb_name;

删除数据表：drop table tb_name;

清空数据表：delete from tb_name;

显示数据表：show tables;

数据库间表操作：create table tb1_name select * from tb2_name;

不同数据库之间表操作：INSERT INTO tb_name select * from db_name.tb_name where id LIKE 'condition';

Insert：insert into tb_name (field1,field5...fieldx) values (value1,value2...valuex);

Delete:delete from tb_name [where condition];

Update:update tb_name set field1=value1,field2=value2 [where condition];

Select:select * from tb_name [where condition];

like子句：select * from tb_name where field1 like 'value_';

select * from tb_name where field1 like 'value%';

replace：update tb_name set fieldX=replace(fieldX,string,mystring);