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SELECT TOP 10 *
from HumanResources.Employee
WHERE EmployeeID NOT IN (SELECT TOP 0 EmployeeID from HumanResources.Employee ORDER BY EmployeeID desc)
ORDER BY EmployeeID desc
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SELECT TOP ·ÖÒ³´óС * from ±íÃû where Ö÷¼ü  not in (select top µ±Ç°Ò³¼õ1*·ÖÒ³´óС from ±íÃû order by Ö÷¼ü)
order by Ö÷¼ü


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1. µ±Ç°ÏµÍ³ÈÕÆÚ¡¢Ê±¼ä
select getdate()
2. dateadd ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐ嵀 datetime Öµ
ÀýÈ磺ÏòÈÕÆÚ¼ÓÉÏ2Ìì
select dateadd(day,2,'2004-10-15') --·µ»Ø£º2004-10-17 00:00:00.000
3. datediff ·µ»Ø¿çÁ½¸öÖ¸¶¨ÈÕÆÚµÄÈÕÆÚºÍʱ¼ä±ß½çÊý¡£
select datediff(day,'2004-09-01','2004-09-18') --· ......

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SQL±¸·ÝÓ뻹ԭ¾­µäÎĵµ
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Sql Server2000,Sql Server2005Öеıí½á¹¹µÄÏà¹ØÐÅÏ¢

Sql Server2005µÄ:
SELECT
TableName=CASE WHEN C.column_id=1 THEN O.name ELSE N'' END,
TableDesc=ISNULL(CASE WHEN C.column_id=1 THEN PTB.[value] END,N''),
Column_id=C.column_id,
ColumnName=C.name,
PrimaryKey=ISNULL(IDX.PrimaryKey,N''),
[IDENTITY]=CASE WHEN C.is_identity=1 THEN N'√' ......

OracleºÍSQL ServerÔÚÊÂÎñ´¦ÀíÉϵÄÇø±ð

Õª Òª£º±¾ÎÄÌÖÂÛÁËOracleºÍSQL ServerµÄÔÚÊÂÎñ´¦ÀíÉϵÄÇø±ð£¬²¢·ÖÎöÁËÆäʵÏÖ»úÖÆµÄ²îÒì¡£
¹Ø¼ü´Ê£ºOracle£»SQL Server£»ÊÂÎñ£»ÊÂÎñ¸ôÀë¼¶±ð£»DDL¡£
ÊÂÎñ´¦ÀíÊÇËùÓдóÐÍÊý¾Ý¿â²úÆ·µÄÒ»¸ö¹Ø¼üÎÊÌ⣬¸÷Êý¾Ý¿â³§É̶¼ÔÚÕâ¸ö·½Ã滨·ÑÁ˺ܴó¾«Á¦£¬²»Í¬µÄÊÂÎñ´¦Àí·½Ê½»áµ¼ÖÂÊý¾Ý¿âÐÔÄܺ͹¦ÄÜÉϵľ޴ó²îÒì¡£
ÊÂÎñ´¦ÀíÒ²ÊÇÊý¾Ý¿â¹Ü ......

×Ô¼ºÐ´µÄoracle dbms_sql º¯Êý°üÀý×Ó

create or replace procedure pro_insert_dbms
is
cid number;
cid_DDL number;
selectsql varchar2(1000);
ddlsql    varchar2(1000);
row_count number;
nofrows   integer;
lrowid                & ......
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