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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
Ð¶ÔØµÄÃüÁîÊÇ:
net stop "MySQL"
mysqld-nt.exe –remove "MySQL"
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mysql º¯Êý

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----ͳ¼Æº¯Êý----
AVG    --Ç󯽾ùÖµ
COUNT   --ͳ¼ÆÊýÄ¿
MAX    --Çó×î´óÖµ
MIN    --Çó×îСֵ
SUM    --ÇóºÍ
--AVG
use pangu
select avg(e_wage) as dept_avgWage
from employee
group by dept_id
--M ......

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ÔÚÃüÁîÐÐÏÂÊäÈë mysql -h
localhost -u root -p»Ø³µ,È»ºóÊäÈëÃÜÂë¼´¿É;»òÖ±½ÓÔËÐÐmysql×Ô´øµÄÁ¬½Ó¹¤¾ß,È»ºóÊäÈëÃÜÂë¼ ......
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