Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

SQL ºÍ´æ´¢¹ý³Ì¼¶±ðµÄÊÂÎñ¼°ADO.NET¼¶±ðµÄÊÂÎñ

 Êý¾Ý¿âÊÂÎñÊÇÆäËûÊÂÎñÄ£Ð͵Ļù´¡£¬µ±Ò»¸öÊÂÎñ´´½¨Ê±²»Í¬Êý¾Ý¿âϵͳ¶¼ÓÐ×Ô¼ºµÄ¹æ
Ôò¡£SQL Server ĬÈÏÔÚ×Ô¶¯Ìá½»µÄģʽϹ¤×÷£¬Ã¿¸öÓï¾äÖ´ÐÐÍêºó¶¼»áÁ¢¼´Ìá½»£»Óë´Ë¶ÔÕÕ
µÄÊÇ Oracle ÐèÒªÄã°üº¬Ò»¸öÌá½»Óï¾ä¡£µ«Êǵ±Ò»¸öÓï¾äͨ¹ý OLE  DB Ö´ÐÐʱ£¬ËüÖ´ÐÐÍêºó
Ò»¸öÌá½»¶¯×÷»á±»¸½¼ÓÉÏÈ¥¡£ÀýÈ磺
DECLARE  @TranName  VARCHAR(20);
SELECT  @TranName  =  'MyTransaction';
 
BEGIN  TRANSACTION  @TranName;
GO
USE  AdventureWorks;
GO
DELETE  from  AdventureWorks.HumanResources.JobCandidate
        WHERE  JobCandidateID  =  13;
GO
 
COMMIT  TRANSACTION  MyTransaction;
GO
»òÕߣº
CREATE  PROCEDURE  Tran1  
as  
begin  tran   
set  xact_abort  on 
Insert  Into  P_Category(CategoryId,Name)values('1','test1')  
Insert  Into  P_Category(CategoryId,Name)values('2','test2')  
commit  tran   
GO
set xact_abort on±íʾÓöµ½´íÎóÁ¢¼´»Ø¹ö¡£
µ±È»ÄãÒ²¿ÉÒÔÕâôд£º
CREATE  PROCEDURE  tran1 
as 
begin  tran 
Insert  Into  P_Category(CategoryId,Name)values('1','test1')  
if(@@error<>0) 
  rollback  tran 
else 
  begin 
   Insert  Into  P_Category(CategoryId,Name)values('2','test2')
   if(@@error<>0) 
      rollback  tran 
   else 
      commit  tran 
  end 
GO
ADO.NET¼¶±ðµÄÊÂÎñ
string  conString  =  "data  source=127.0.0.1;database=codematic;user  id=sa;
password=";
SqlConnection  myConnection  =  new  SqlConnection(conString);
myConnection.Open();
 
//Æô¶¯Ò»¸öÊÂÎñ
SqlTransaction  myTrans  = 


Ïà¹ØÎĵµ£º

SQLÓïÑÔ»ù´¡¿¼ºË(¶þ)(oracle)

 2.¸ù¾ÝOracle Êý¾Ý¿âscott ģʽϵÄemp ±íºÍdept ±í£¬Íê³ÉÏÂÁвÙ×÷£º
      (1) ²éѯ20ºÅ²¿ÃŵÄËùÓÐÔ±¹¤ÐÅÏ¢£»
      (2) ²éѯËùÓй¤ÖÖΪCLERK µÄÔ±¹¤µÄÔ±¹¤ºÅ¡¢Ô±¹¤ÃûºÍ²¿Ãźţ»
      (3) ²éѯ½±½ðCOMM ¸ßÓÚ¹¤×ÊSAL µÄÔ±¹¤ÐÅÏ¢£»
  ......

SQLÖÐsaµÇ¼ʧ°Ü


MS-SQLÖÐsaµÇ¼ʧ°Ü:
¸Ã´íÎó²úÉúµÄÔ­ÒòÊÇÓÉÓÚSQL ServerʹÓÃÁË"½ö Windows"µÄÉí·ÝÑéÖ¤·½Ê½,
Òò´ËÓû§ÎÞ·¨Ê¹ÓÃSQL ServerµÄµÇ¼ÕÊ»§£¨Èç sa £©½øÐÐÁ¬½Ó.½â¾ö·½·¨ÈçÏÂËùʾ:
1.ÔÚ·þÎñÆ÷¶ËʹÓÃÆóÒµ¹ÜÀíÆ÷,²¢ÇÒÑ¡Ôñ"ʹÓà Windows Éí·ÝÑéÖ¤"Á¬½ÓÉÏ SQL Server
²Ù×÷²½Öè:
ÔÚÆóÒµ¹ÜÀíÆ÷ÖÐ
--ÓÒ¼üÄãµÄ·þÎñÆ÷ʵÀý(¾ÍÊÇÄÇ ......

ÔõÑù¶ÔSQL Server 2005¼ÓÃܵĴ洢¹ý³Ì½øÐнâÃÜ

 SQLServer2005ÀïʹÓÃwith encryptionÑ¡Ïî´´½¨µÄ´æ´¢¹ý³ÌÈÔÈ»ºÍsqlserver2000ÀïÒ»Ñù£¬¶¼ÊÇʹÓÃXOR½øÐÐÁ˵ļÓÃÜ¡£ºÍ2000²»Ò»ÑùµÄÊÇ£¬ÔÚ2005µÄϵͳ ±ísyscommentsÀïÒѾ­²é²»µ½¼ÓÃܹýµÄÃÜÎÄÁË¡£Òª²éÃÜÎıØÐëʹÓÃDAC(רÓùÜÀíÔ±Á¬½Ó)Á¬½Óµ½Êý¾Ý¿âºó£¬ÔÚϵͳ±í sys.sysobjvalues²éѯ£¬¸Ã±íµÄÁÐimageval´æ´¢ÁËÏàÓ¦µÄÃÜÎÄ¡£¾ß ......

fastreport´òÓ¡´úÂë¼°SQLºÏ²¢×ֶεÄÓï¾ä

 procedure Tform1.Button5Click(Sender: TObject);
var
  p:pointer;
  FrfStr:string;
begin
  inherited;
  Screen.Cursor:=MYCURSORWAITHAND;
  with cdsPrint do
  begin
    Active:=false;
    //Õâ¸öSQLÓÃÓÚ½«remarkÖеļǼºÏ²¢µ½Ò»Æ ......

SQL UNION ºÍ UNION ALL ²Ù×÷·û

 SQL UNION ²Ù×÷·û
UNION ²Ù×÷·ûÓÃÓںϲ¢Á½¸ö»ò¶à¸ö SELECT Óï¾äµÄ½á¹û¼¯¡£
Çë×¢Ò⣬UNION ÄÚ²¿µÄ SELECT Óï¾ä±ØÐëÓµÓÐÏàͬÊýÁ¿µÄÁС£ÁÐÒ²±ØÐëÓµÓÐÏàËƵÄÊý¾ÝÀàÐÍ¡£Í¬Ê±£¬Ã¿Ìõ SELECT Óï¾äÖеÄÁеÄ˳Ðò±ØÐëÏàͬ¡£
SQL UNION Óï·¨
SELECT column_name(s) from table_name1
UNION
SELECT column_name(s) from tabl ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ