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show databases;
ȱʡÓÐÁ½¸öÊý¾Ý¿â£ºmysqlºÍtest¡£ mysql¿â´æ·Å×ÅmysqlµÄϵͳºÍÓû§È¨ÏÞÐÅÏ¢£¬ÎÒÃǸÄÃÜÂëºÍÐÂÔöÓû§£¬Êµ¼ÊÉϾÍÊǶÔÕâ¸ö¿â½øÐвÙ×÷¡£
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use mysql;
show tables;
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describe ±íÃû;
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create database ¿âÃû;
drop database ¿âÃû;
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use ¿âÃû;
create table ±íÃû(×Ö¶ÎÁбí);
drop table ±íÃû;
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delete from ±íÃû;
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select * from ±íÃû;
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mysqldump --opt test > mysql.test
¼´½«Êý¾Ý¿âtestÊý¾Ý¿âµ¼³öµ½mysql.testÎļþ£¬ºóÕßÊÇÒ»¸öÎı¾Îļþ
È磺mysqldump -u root -p123456 --databases dbname > mysql.dbname
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mysqlimport -u root -p123456 < mysql.dbname¡£
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use test;
load data local infile "ÎļþÃû" into table ±íÃû;
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mysql> SHOW DATABASES;
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mysql> CREATE DATABASE MYSQLDATA;
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mysql> USE MYSQLDATA; (°´»Ø³µ¼ü³öÏÖDatabase changed ʱ˵Ã÷²Ù×÷³É¹¦!)
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mysql> SHOW TABLES;
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mysql> CREATE TABLE MYTABLE (name VARCHAR(20), sex CHAR(1));
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mysql> DESCRIBE MYTABLE;
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mysql> insert into MYTABLE values ("hyq","M");
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mysql> LOAD DATA LOCAL INFILE "D:/mysql.txt"
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sudo passwd virtual
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sudo vim /etc/passwd
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