Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

DataAdapter ¶ÔÏóÖеÄSQLÃüÁî

±êÇ©£ºÊý¾Ý·ÃÎÊ     ADO.NET
    DataAdapter ¶ÔÏóÖеÄSQLÃüÁî     ×¢£ºADO.NET¶ÔÏóÄ£ÐÍ ºÍ C#  Òª±È SQL ¸üÊʺϴ¦Àí¸´ÔÓÔËËã ºÍ µ¼º½Âß¼­£¨±ÈÈ磬²éÕÒÏà¹ØµÄÁíÒ»¸ö±íµÄÊý¾Ý£©
         ËùÒÔ£¬¿ÉÒÔ°ÑÊý¾ÝÌî³äµ½DataSetÖУ¬ÔÚ¿Í»§»úÉÏÖ´ÐÐÕâÖÖÂß¼­¡£
        ²é¿´SQL SELECT¡¢UPDATE¡¢INSERT ºÍ DELETEÃüÁ
    ÃüÁî¹¹½¨Æ÷(command builder)ÓÃÓÚ¸ù¾ÝSELECTÃüÁîÉú³ÉSQLÃüµÄUPDATE¡¢INSERTºÍDELETE)ÃüÁî¡£
    ¿ÉÒÔÓÃCommandBuilder¶ÔÏóµÄGetUpdateCommand()¡¢GetInsertCommand()ºÍGetDeleteCommand()·½·¨Éú³ÉÃüÁî¡£
    Àý£º
        SqlConnection thisConnection = new SqlConnection(@".........ConnectString...........");         thisConnection.Open();         SqlDataAdapter thisAdapter = new SqlDataAdapter("SELECT CustomerID from Customers", thisConnection);         SqlCommandBuilder thisBuilder = new SqlCommandBuilder(thisAdapter);    //ÓÃCommand builder¹¹½¨ÃüÁî
    
        SqlCommand updateCommand = thisBuilder.GetUpdateCommand();
        Console.WriteLine(updateCommand.CommandText);    // Êä³öbuilder¹¹½¨µÄSQLÃüÁ¿ÉÒÔ¿´µ½SQLÃüÁîÊÇʲôÑùµÄ£¬
                                                               


Ïà¹ØÎĵµ£º

È«¹úËùÓгÇÊÐSQL

 --Ê¡¼¶   Provincial
--³ÇÊР  City
create table Provincial(pid int,Provincial varchar(50),primary key (pid))
insert into Provincial values(1,'±±¾©ÊÐ')
insert into Provincial values(2,'Ìì½òÊÐ')
insert into Provincial values(3,'ÉϺ£ÊÐ')
insert into Provincial values(4,'Ö ......

sql serverÊÓͼµÄ×÷Óã¨×ª£©

    ËùνÊÓͼ£¨View£©ÆäʵÊÇÖ´ÐвéѯÓï¾äºóµÃµ½µÄ½á¹û£¬µ«Õâ¸ö²éѯ½á¹û¿ÉÒÔ·ÂÕæ³ÉÊý¾Ý±íÀ´Ê¹Óã¬ËùÒÔÓÐÈËÒ²³ÆËüΪ“ÐéÄâÊý¾Ý±í”£¬ÊÓͼÔÚ²Ù×÷ÉϺÍÊý¾Ý±íûÓÐÊ²Ã´Çø±ð£¬µ«Á½ÕߵIJîÒìÊÇÆä±¾ÖÊÊDz»Í¬µÄ£ºÊý¾Ý±íÊÇʵ¼Ê´æ´¢¼Ç¼µÄµØ·½£¬È»¶øÊÓͼ²¢²»±£´æÈκμǼ£¬Ëü´æ´¢µÄʵ¼ÊÉÏÊDzéѯÓï¾ä£¬ÆäËù³ÊÏÖ³ ......

sql ²Ù×÷

 exec   sp_rename   't_2.lname','lastname','column' 
exec   sp_rename   ‘tabelname’,'new'
 
»ñµÃsqlÓï¾äµÄÖ´ÐÐʱ¼ä£º
SET STATISTICS TIME ON
// sql Óï¾ä£ºselect * from table
SET STATISTICS TIME OFF
 
 
´´½¨Ë÷Òý£ºCRE ......

Mysql µ¼Èë .sqlÎļþÖÐÎÄÂÒÂ룿

 --default-character-set=utf8 ÓëÐÞ¸ÄsqlÎļþ¼ÓÈ룺SET NAMES 'utf8'; 
µ¼Èë½Å±¾Ê±£¬SET NAMES 'xxx' £¬xxxÓ¦¸ÃºÍsql½Å±¾ÎļþµÄʵ¼Ê±àÂëÒ»Ö£¬Èç¹ûÄãÉèÖõÄʱutf-8 £¬ÄÇôÇëÈ·ÈÏÄãµÄsql½Å±¾Îļþʱutf-8±£´æµÄ:
iconv -f UTF-8 xxx.sql
Èç¹ûÏÔʾÕý³££¬ÄÇôÕâÒ»²½¾ÍOKÁË
ÁíÍâ×¢ÒâÄãµÄ½Å±¾ÀÓÐûÓиø¿â±íÉèÖ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ