ʹÓÃSQL Serverµ¼Èë/µ¼³öExcel
ʹÓÃSQL Serverµ¼Èë/µ¼³öExcel,°üº¬²¿·Ö´íÎóÐÅÏ¢´¦Àí·½·¨;
²Ù×÷ÊÖ¼Ç,Áô´Ë±¸²é
/*
µ¼Èë
*/
--´íÎóÐÅÏ¢ÈçÏÂʱ£º
--Msg 15281, Level 16, State 1, Line 2
--SQL Server blocked access to STATEMENT 'OpenRowset/OpenDatasource' of component 'Ad Hoc Distributed Queries' because this component is turned off as part of the security configuration for this server. A system administrator can enable the use of 'Ad Hoc Distributed Queries' by using sp_configure. For more information about enabling 'Ad Hoc Distributed Queries', see "Surface Area Configuration" in SQL Server Books Online.
--ÇëÑ¡ÔñÖ´ÐÐÏÂÃæÓï¾ä,ÐÞ¸ÄĬÈÏÅäÖÃ,ÔÚ½øÐе¼Èë²Ù×÷
-- begin
sp_configure 'show advanced options',1
RECONFIGURE WITH override
go
sp_configure 'Ad Hoc Distributed Queries',1 -- 1:ÆôÓÃ,ĬÈÏ0:½ûÓÃ
RECONFIGURE WITH override
go
EXEC sp_configure;
go
-- end
-- ²éѯ
select * from
OPENROWSET('MICROSOFT.JET.OLEDB.4.0','Excel 5.0;HDR=YES;DATABASE=D:\ExcelSheet1.xls',sheet1$)
go
-- ²éѯ²¢µ¼Èë
select * into ExcelSheet from
OPENROWSET('MICROSOFT.JET.OLEDB.4.0','Excel 5.0;HDR=YES;DATABASE=D:\ExcelSheet1.xls',sheet1$)
go
/*
µ¼³ö
*/
--´íÎóÐÅÏ¢ÈçÏÂʱ£º
--Msg 15281, Level 16, State 1, Procedure xp_cmdshell, Line 1
--SQL Server blocked access to procedure 'sys.xp_cmdshell' of component 'xp_cmdshell' because this component is turned off as part of the security configuration for this server. A system administrator can enable the use of 'xp_cmdshell' by using sp_configure. For more information about enabling 'xp_cmdshell', see "Surface Area Configuration" in SQL Server Books Online.
--ÇëÑ¡ÔñÖ´ÐÐÏÂÃæÓï¾ä,ÐÞ¸ÄĬÈÏÅäÖÃ,ÔÚ½øÐе¼³ö²Ù×÷
-- begin
sp_configure 'show advanced options',1
RECONFIGURE WITH override
go
sp_configure 'xp_cmdshell',1 -- 1:ÆôÓÃ,ĬÈÏ0:½ûÓÃ
RECONFIGURE WITH override
go
EXEC sp_configure;
go
-- end
--Ìí¼Óµ½ÏÖÔÚExcelÎĵµ
insert into OPENROWSET('MICROSOFT.JET.OLEDB.4.0','Excel 5.0;HDR=YES;DATABASE=D:\ExcelSheet.xls',sheet1$)
go
--´øÁ¬½ÓÐÅÏ¢µ¼³ö
EXEC master..xp_cmd
Ïà¹ØÎĵµ£º
ϵͳ»·¾³£ºWindows 7
Èí¼þ»·¾³£ºVisual C++ 2008 SP1 +SQL Server 2005
±¾´ÎÄ¿µÄ£º±àдһ¸öº½¿Õ¹ÜÀíϵͳ
ÕâÊÇÊý¾Ý¿â¿Î³ÌÉè¼ÆµÄ³É¹û£¬ËäÈ»³É¼¨²»¼Ñ£¬µ«ÊÇ×÷ΪÎÒÓÃVC++ ÒÔÀ´±àдµÄ×î´ó³ÌÐò»¹ÊÇ´«µ½ÍøÉÏ£¬ÒÔ¹©²Î¿¼¡£ÓÃVC++ ×öÊý¾Ý¿âÉè¼Æ²¢²»ÈÝÒ×£¬µ«Ò²²»ÊDz»¿ÉÄÜ¡£ÒÔÏÂÊÇÎҵijÌÐò½çÃ棬ºóÃæ ......
----start
SQL(Structured Query Language)£¬Ò²¾ÍÊǽṹ»¯²éѯÓïÑÔ£¬Ëü±»Éè¼ÆÓÃÀ´²Ù×÷¼¯ºÏµÄ£¬ÊǷǹý³Ì»¯µÄÓïÑÔ¡£Ëæ×ÅÓ¦ÓóÌÐòµÄ·¢Õ¹£¬ÒµÎñÂß¼Ô½À´Ô½¸´ÔÓ£¬´«Í³µÄSQLÒѾ²»ÄÜÂú×ãÈËÃǵÄÒªÇó£¬ÓÚÊÇÈËÃǶÔSQL½øÐÐÁËÀ©Õ¹£¬Ê¹Ëü¾ßÓÐÁ˹ý³Ì»¯µÄÂß¼£¬¼´£ºSQL PL¡£SQL PLµÄÈ«³ÆÊÇ SQL Procedural Language£ ......
±¾ÎĽÚÑ¡×ÔMSDNµÄÎÄÕ¡¶ÎåÖÖÌá¸ß SQL ÐÔÄܵķ½·¨¡·£¬Ìá³öÈçºÎÌá¸ß»ùÓÚSQL ServerÓ¦ÓóÌÐòµÄÔËÐÐЧÂÊ£¬·Ç³£ÖµµÃÍƼö¡£¶ÔһЩTrafficºÜ¸ßµÄÓ¦ÓÃϵͳ¶øÑÔ£¬ÈçºÎÌá¸ßºÍ¸Ä½øSQLÖ¸ÁÊǷdz£ÖØÒªµÄ£¬Ò²ÊÇÒ»¸öºÜºÃµÄÍ»ÆƵ㡣
*ÎÄÕÂÖ÷Òª°üÀ¨ÈçÏÂһЩÄÚÈÝ£¨Èç¸ÐÐËȤ£¬ÇëÖ±½Ó·ÃÎÊÏÂÃæµÄURLÔĶÁÍêÕûµÄÖÐÓ¢ÎÄÎĵµ£©£º
1, ´Ó INSE ......
SQL ServerÀïµÄ ISNULL Óë Oracle ÖÐµÄ NULLIF²»Í¬:
SQL Server ÖÐÓÐÁ½¸ö²ÎÊý£¬Óï·¨£º
ISNULL(check_expression, replacement_value)
check_expression Óë replacement_value Êý¾ÝÀàÐͱØÐëÒ»ÖÂ
Èç¹û check_expression Ϊ NULL£¬Ôò·µ»Ø replacement_v ......
¹Ì¶¨³¤¶È(char)Óë¿É±ä³¤¶È(varchar)×Ö·ûÊý¾ÝÀàÐÍ
char[(n)]
³¤¶ÈΪn¸ö×ֽڵĹ̶¨³¤¶ÈÇÒ·ÇUnicodeµÄ×Ö·ûÊý¾Ý¡£n±ØÐëÊÇÒ»¸ö½éÓÚ1ºÍ8,000Ö®¼äµÄÊýÖµ¡£´æ´¢´óСΪn¸ö×Ö½Ú¡£charÔÚSQL-92ÖеÄͬÒå´ÊΪcharacter¡£
varchar[(n)]
³¤¶ÈΪn¸ö×ֽڵĿɱ䳤¶ÈÇÒ·ÇUnicodeµÄ×Ö·ûÊý¾Ý¡£n±ØÐëÊÇÒ»¸ö½éÓÚ1ºÍ8,000Ö®¼äµÄÊýÖµ¡£´æ´¢´óСΪ ......