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mysqldump -–add-drop-table -uusername -ppassword databasename > backupfile.sql
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mysqldump -hhostname -uusername -ppassword databasename | gzip > backupfile.sql.gz
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mysqldump -hhostname -uusername -ppassword databasename specific_table1 specific_table2 > backupfile.sql
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mysqldump -hhostname -uusername -ppassword –databases databasename1 databasename2 databasename3 > multibackupfile.sql
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mysqldump –no-data –databases databasename1 databasename2 databasename3 > structurebackupfile.sql
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mysqldump –all-databases > allbackupfile.sql
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mysql -hhostname -uusername -ppassword databasename < backupfile.sql
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gunzip < backupfile.sql.gz | mysql -uusername -ppassword databasename
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mysqldump -uusername -ppassword databasename | mysql –host=*.*.*.* -C databasename


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SQL #1: select * from uchome_feed where uid in('0',501...) order by dateline desc limit 0,50;
SQL #2: select * from uchome_feed where uid in(0,501...) order by dateline desc limit 0,50;
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create database name; ´´½¨Êý¾Ý¿â
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select ÖмÓÉÏdistinctÈ¥³ýÖØ¸´×Ö¶Î
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## **********first test,procedure**********
#<1>
use testprocedure;
delimiter //
create procedure simpleproce1 (out par1 int)
begin
 select count(*) into par1 from proce;
end
//
delimiter ;
call simpleproce1(@a);
select @a;
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sudo apt-get install mysql-servel-5.0 mysql-client-5.0
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 sudo apt-get install libmysqlclient15-dev
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