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declare @max integer,@id varchar(18) --´Ë´¦±äÁ¿ÀàÐ͸ù¾Ý×Ö¶ÎÀàÐÍÉèÖÃ
declare cur_rows cursor local for select ×Ö¶Î,count(*) from ±íÃûgroup by ×Ö¶Î having count(*) > 1
open cur_rows
fetch cur_rows into @id,@max
while @@fetch_status=0
begin
select @max = @max -1
set rowcount @max
delete from ±íÃûwhere ×Ö¶Î = @id
fetch cur_rows into @id,@max
end
close cur_rows
set rowcount 0
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SELECT * from OPENROWSET('Microsoft.Jet.OLEDB.4.0','Excel 8.0;Database=d:\1.xls',[Sheet1$])
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SELECT * from OPENROWSET('MSDAORA.1','NetServiceName ......
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CREATE DATABASE database-name
2¡¢ËµÃ÷£ºÉ¾³ýÊý¾Ý¿â
drop database dbname
3¡¢ËµÃ÷£º±¸·Ýsql server
--- ´´½¨ ±¸·ÝÊý¾ÝµÄ device
USE master
EXEC sp_addumpdevice 'disk', 'testBack', 'c:\mssql7backup\MyNwind_1.dat'
--- ¿ªÊ¼ ±¸·Ý
BACKUP DATABASE pubs TO testBack
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1.
SQL> desc gjh_a05 ;
Name Type Nullable Default Comments
----- ------------- -------- ------- --------
A0500 VARCHAR2(2) Y &nbs ......
/*
* Source URL: http://jonsion.javaeye.com/blog/511584
*/
1. »ñÈ¡ËùÓÐÊý¾Ý¿âÃû
1> SELECT name from master..sysdatabases;
2> go
2. »ñÈ¡ËùÓбíÃû
1> USE master
2> go
1> SELECT name from sysobjects WHERE type='U';
2> go
3. »ñÈ¡ËùÓÐ×Ö¶ÎÃû
1> SELECT name ......