c# SQLÊý¾Ý¿âÔ¶³ÌÁ¬½Ó¼°ÅäÖ÷½·¨
c# SQLÊý¾Ý¿âÔ¶³ÌÁ¬½Ó¼°ÅäÖ÷½·¨
Ò»£ºC# Á¬½ÓSQLÊý¾Ý¿â
Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;
Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword;
Server=myServerAddress;Database=myDataBase;User ID=myUsername;Password=myPassword;Trusted_Connection=False;
Server=myServerAddress;Database=myDataBase;Trusted_Connection=True;
Server=myServerName\theInstanceName;Database=myDataBase;Trusted_Connection=True;
Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI;
1£ºIntegrated Security²ÎÊý
µ±ÉèÖÃIntegrated SecurityΪ True µÄʱºò£¬Á¬½ÓÓï¾äÇ°ÃæµÄ UserID, PW ÊDz»Æð×÷Óõ쬼´²ÉÓÃwindowsÉí·ÝÑé֤ģʽ¡£
Ö»ÓÐÉèÖÃΪ False »òÊ¡ÂÔ¸ÃÏîµÄʱºò£¬²Å°´ÕÕ UserID, PW À´Á¬½Ó¡£
Integrated Security »¹¿ÉÒÔÉèÖÃΪ£ºsspi £¬Ï൱ÓÚ True£¬½¨ÒéÓÃÕâ¸ö´úÌæ True¡£
Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI;
Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=true;
Data Source=myServerAddress;Initial Catalog=myDataBase;;User ID=myUsername;Password=myPasswordIntegrated Security=false;
2£º²ÎÊýTrusted_Connection
Trusted_Connection=true£¬½«Ê¹Óõ±Ç°µÄ Windows ÕÊ»§Æ¾¾Ý½øÐÐÉí·ÝÑéÖ¤
Trusted_Connection=false;½«²»²ÉÓÃÐÅÈÎÁ¬½Ó·½Ê½(Ò²¼´²»²ÉÓÃWindowsÑéÖ¤·½Ê½)£¬¶ø¸ÄÓÉSQL Server 2000ÑéÖ¤·½Ê½
Server=myServerAddress;Database=myDataBase;User ID=myUsername;Password=myPassword;Trusted_Connection=false;
Server=myServerAddress;Database=myDataBase;Trusted_Connection=True;
3£ºInitial CatalogÊÇÄãÒªÁ¬½ÓµÄÊý¾Ý¿âµÄÃû×Ö
4£ºWINCEÁ¬½Ó
Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI;User ID=myDomain\myUsername;Password=myPassword;
¶þ£º¿ÉÒÔÀûÓÃSqlConn
Ïà¹ØÎĵµ£º
windows ¼¯³ÉÑéÖ¤£º
<connectionStrings>
<add name="ConnectionStr" connectionString="Data Source=CAIPENG-PC;database=Test;Integrated Security=SSPI" providerName="System.Data.SqlClient"/>
</connectionStrings>
»òÕß
<connectionStrings>
<add name=" ......
--µÃµ½Êý¾Ý¿âµÄËùÓÐÕßÃû³Æ
SELECT distinct RDB$OWNER_NAME AS DATABASE_OWNER
from RDB$RELATIONS
WHERE (RDB$SYSTEM_FLAG = 1);
--¸ù¾Ý±íÃûµÃµ½±íµÄÖ÷¼ü
SELECT RC.RDB$CONSTRAINT_NAME AS CONSTRAINT_NAME,
I.RDB$RELATION_NAME AS TABLE_NAME,
S.RDB$FIELD_NAME AS COLUMN_NAME
from RDB$RELATION_CONSTRAINTS ......
ʵÏÖСÊý¾ÝÁ¿ºÍº£Á¿Êý¾ÝµÄͨÓ÷ÖÒ³ÏÔʾ´æ´¢¹ý³Ì
¡¡¡¡½¨Á¢Ò»¸ö Web Ó¦Ó㬷ÖÒ³ä¯ÀÀ¹¦Äܱز»¿ÉÉÙ¡£Õâ¸öÎÊÌâÊÇÊý¾Ý¿â´¦ÀíÖÐÊ®·Ö³£¼ûµÄÎÊÌâ¡£¾µäµÄÊý¾Ý·ÖÒ³·½·¨ÊÇ:ADO ¼Í¼¼¯·ÖÒ³·¨£¬Ò²¾ÍÊÇÀûÓÃADO×Ô´øµÄ·ÖÒ³¹¦ÄÜ£¨ÀûÓÃÓα꣩À´ÊµÏÖ·ÖÒ³¡£µ«ÕâÖÖ·ÖÒ³·½·¨½öÊÊÓÃÓÚ½ÏСÊý¾ÝÁ¿µÄÇéÐΣ¬ÒòΪÓα걾ÉíÓÐȱµã£ºÓαêÊÇ´æ·ÅÔÚÄÚ´æÖУ¬º ......
SQL :Structured Query Language½á¹¹»¯²éѯÓïÑÔ
1.Select [Predicate] *(filed) from table/view Where ... Group by ... Having... Order by ... With ...
Predicate£º°üÀ¨all/Distinct/Distinctrow/Top£¬ÏÞÖÆ²éѯ½á¹û£»
As¿ÉÒÔÃüÃû±ðÃû£»
Where ... Ö¸¶¨Ä³Ð©Ìõ¼þ£¬½«ËùÓ ......