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SET GLOBAL character_set_client = utf8;
SET GLOBAL character_set_connection = utf8;
SET GLOBAL character_set_database = utf8;
SET GLOBAL character_set_results = utf8;
SET GLOBAL character_set_server = utf8;
SET GLOBAL character_set_system = utf8;
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show variables like "char%";
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TINYINT
-128 - 127
TINYINT UNSIGNED
0 - 255
SMALLINT
-32768 - 32767
SMALLINT UNSIGNED
0 - 65535
MEDIUMINT
-8388608 - 8388607
MEDIUMINT UNSIGNED
0 - 16777215
INT »ò INTEGER
-2147483648 - 2147483647
INT UNSIGNED »ò INTEGER UNSIGNED
0 - 4294967295
BIGINT
-9223372036854775808 - 92233720 ......
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 ......
conn.php
<?php
/*
* Created on 2010-1-6
* Author:CHAUVET
* Function:Á¬½Ó×Ö·û´®
*/
$conn=@mysql_connect("localhost","root","")or die("Á¬½ÓÊý¾Ý¿â³ö´í£¡");
mysql_select_db("newdb",$conn);
mysql_query("set names 'gb2312'");
function ReplaceSom ......
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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
......
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µ±×÷ºó¶ËÊý¾Ý¿â£¬Ê¹Æä»ñµÃÁ˹㷺ӦÓᣴ¦ÓÚ°²È«·½ÃæµÄ¿¼ÂÇ£¬ÐèҪΪà ......