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#==========================================================
#!/bin/bash
current_date=`date +%Y-%m-%d:%H:%M:%S`
/usr/local/mysql/bin/mysqldump -prootpass dbname1 > ./DB_DIR/dbname1_"$current_date"_dump_file.sql
/usr/local/mysql/bin/mysqldump -prootpass dbname2 > ./DB_DIR/dbname2_"$current_date"_dump_file.sql
scp /root/DB_DIR/dbname1_"$current_date"_dump_file.sql sca@172.90.91.92:/root/DBBakDir
scp /root/DB_DIR/dbname2_"$current_date"_dump_file.sql sca@172.91.92.93:/root/DBBakDir
if [ $? -ne 0 ]
then
mail -s "Warning mesage from the automating backup program of tuscany.org.cn" wanghongwei@myce.net.cn < mailcontext.txt
fi
#==========================================================
mailcontext.txtµÄÄÚÈÝ
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
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# Uncomment the following rows if you move the MySQL distribution to another
# location
basedir = d:/cyoa/mysql_cy/
datadir = d:/cyoa/mysq ......
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1£¬¼ÙÈç±í°üº¬PRIMARY KEY£¬InnoDBʹÓÃËü×÷Ϊ¾Û¼¯Ë÷Òý
2£¬¼ÙÈç±íûÓж¨ÒåPRIMARY KEY£¬InnoDB½«µÚÒ»¸öÖ»°üº¬NOT NULLÊôÐÔÁеÄUNIQUE index×÷ΪÖ÷¼ü²¢ÇÒ½«ËüÉèÖÃΪ¾Û¼¯Ë÷Òý
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drop table student;
create table student
(sno int not null unique,
sname varchar(8) not null,
ssex char(2) not null,
sage int ,
sdept varchar(20));
select * from student;
alter table student drop uniq ......