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MSSQL ÈçºÎʵÏÖ MySQL µÄ limit ²éѯ·½Ê½
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Code:
SELECT * from
(
     SELECT TOP [ÿҳ¼Ç¼]
* from
     (
         SELECT TOP [ÿҳ¼Ç¼*µ±Ç°Ò³Êý]
[×Ö¶Î1, ×Ö¶Î2, ...]

         from [Êý¾Ý±í]
    
         ORDER BY [ÅÅÐò×Ö¶Î]
DESC
     )
    [±í±ðÃû1]
     ORDER BY [ÅÅÐò×Ö¶Î]
)
[±í±ðÃû2]

ORDER BY [ÅÅÐò×Ö¶Î]
DESC
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Code:
SELECT * from
(
     SELECT TOP 5 * from
     (
         SELECT TOP 10 *
         from table
         ORDER BY id DESC
     ) t1
     ORDER BY id
) t2
ORDER BY id DESC
ÉÏÃæµÄ´úÂë±íʾ´Ó table ±íÖлñÈ¡¼Ç¼£¬Ã¿Ò³5Ìõ¼Ç¼£¬µ±Ç°ÊǵڶþÒ³5*2=10£¬½á¹û°´ÕÕ id µ¹ÐòÅÅÁС£


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mysql-nt –install
net start  mysql
µ±È»Ó´ÔÚbinĿ¼ÔËÐÐÕâ¸öÃüÁîÁË
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net stop "MySQL"
mysqld-nt.exe –remove "MySQL"
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MySQL partition·ÖÇøI

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mysql ³£Óú¯Êý

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1.CONCAT(str1,str2,...)
mysql> ? concat;
mysql> SELECT CONCAT('My', 'S', 'QL');
+-------------------------+
| CONCAT('My', 'S', 'QL') |
+-------------------------+
| MySQL        ......

mysql Íü¼ÇROOTÃÜÂëµÄ¼òµ¥½â¾ö·½°¸

1.Í£µômysqld
  service mysqld stop
2.ÖØÆômysqld£¬Ö¸¶¨²ÎÊý
  service mysqld start --skip-networking --skip-grant-tables
  »òÕß
  /opt/mysql/bin/mysqld_safe --skip-networking --skip-grant-tables &
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  skip-grant-tables:Á¬½ÓÊ±Ìø¹ýÊ ......
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