Home Database Mysql Tutorial mysql数据库学习――1,获取原数据_MySQL

mysql数据库学习――1,获取原数据_MySQL

Jun 01, 2016 pm 01:31 PM
mysql database

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mysql数据库学习——1,获取原数据

 

show  databasesshow  tablesinformation_schemashow tables 语句的输出不包含temporary表查看服务器所有数据库>show databases查看给定数据库的 create database语句>show create database db_name查看默认数据库的数据表或给定数据库的数据表>show tables>show tables from db_name查看给定数据库的数据表的create table语句>show create table tbl_name查看数据表里的列或索引信息>show columns from tbl_name>show index from tbl_name下面的语句和show columns from tbl_name语句相同>describe tbl_name>explain tbl_name查看默认数据库或给定数据库里数据表的描述性信息>show table status>show table status from db_name给show语句的输出限定一个范围,也可以将支持like的语句改成where,where语句不改变列数,只改变输出的行数,如果数据列中的名字是保留字必须使用反引号(`)括起来。>show columns from tbl_name like '%s'>show columns from tbl_name like '_s'>show columns from tbl_name where `key`='pri'
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mysqlshow命令

mysqldump命令

服务器所管理的数据库

mysqlshow

(如果显示拒绝,则要提供主机,用户名和密码如下所示,如果主机更改过默认端口还必须提供端口大写P  -P)>mysqlshow mysql -h localhost  -u root -p列出给定的数据库的数据表>mysqlshow db_name查看给定数据表里的数据列信息>mysqlshow db_name  tbl_name查看给定数据表里的索引信息>mysqlshow --keys db_name tbl_name查看给定数据库里的数据表的描述信息>mysqlshow --status db_name列出给定数据库中数据表的结构信息(如果不加--no-data参数将同时列出所有表中的数据)>mysqldump --no-data db_name [tbl_name] -u root -p|more
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