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    1.µ¼³ö½á¹¹²»µ¼³öÊý¾Ý
 cmd>mysqldump -B repltest -d --opt > xxx.sql
    2.µ¼³öÊý¾Ý²»µ¼³ö½á¹¹
 cmd>mysqldump -B repltest -t --opt > xxx.sql
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 cmd>mysqldump repltest --opt > xxx.sql
 cmd>mysqldump -B repltest --opt > xxx.sql
 cmd>mysqldump --databases repltest --opt > xxx.sql
    4.µ¼³öÌض¨±í
 cmd>mysqldump -B repltest --table t1 t2 --opt > xxx.sql
    5.µ¼³öÌø¹ýÌض¨±í
 cmd>mysqldump -B repltest --ignore-table=repltest.t1 --ignore-table=repltest.t2 --opt > xxx.sql
   
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    6.µ¼³öÊý¾Ý£¬´ÓÌض¨±í
 mysql>select * into outfile 'xxx.txt' fields terminated by ',' from t1
    7.µ¼³ö±í½á¹¹µÄSQL½Å±¾¼°Êý¾ÝÎļþ
 cmd>mysqldump repltest --tab=q:\dbbackup
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    1.»Ö¸´²¢¸²¸ÇÏÖÓÐÊý¾Ý¿â¡£Õë¶ÔÍêÕûµÄÊý¾Ý¿â±¸·Ý£¨SQL½Å±¾°üº¬CREATE DATABASE£©
 CMD>mysql -u root -p <xxx.sql
    2.»Ö¸´µ½ÐµÄÊý¾Ý¿â¡£Õë¶ÔÍêÕûµÄÊý¾Ý¿â±¸·Ý£¨SQL½Å±¾°üº¬CREATE DATABASE£©
 Ê×ÏÈ£¬É¾³ýSQL½Å±¾ÀïCREATE DATABASEµÄ²¿·Ö
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 mysql>load data infile 'xxx.txt' into table db.t1. fields terminated by ',';
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 cmd>mysqlimport DB -u root -p -l -d 't1.txt'
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mysql µ¼³ö csvÊý¾ÝÃüÁî

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select field1,field2,field3 from tablename into outfile '/home/output1.csv' fields terminated by ','optionally enclosed by ''lines terminated by '\n';
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