ASP.NETÁ¬½ÓSQLºÍACCESSµÄ·½·¨
SQL:
using System.Data.SqlClient;
string sql = "server=.;uid=sa;pwd=;database=tablename;";
ACCESS:
using System.Data.OleDb;
string sql = "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source=" + HttpRuntime.AppDomainAppPath + "//App_Data//db.mdb";
HttpRuntime.AppDomainAppPath Ϊ¸ùĿ¼
Ïà¹ØÎĵµ£º
Orcale µÄSQL Óï¾äÈ¡µÃϵͳµ±Ç°Ê±¼äÓãºsysdate
µ±ÐèÒªÔÚϵͳµ±Ç°ÈÕÆÚÉϼõÈ¥Ò»Ììʱ¿ÉÒÔÓà sysdate-1
¸½£ºµ±Ö»¶ÔÒ»¶¨ÊýÁ¿µÄ¼Ç¼¸ÐÐËȤʱ¿ÉÒÔÈç rownum<100
select * from SLYC_CUSTINFO_T where indbtime>sysdate-1 and OFFICE_CODE='46' and rownum<1 ......
1.Óòéѯ·ÖÎöÆ÷ÖØÃüÃû
exec sp_rename ÔÃû³Æ, ÐÂÃû³Æ
sp_rename ÊÇ SQL Server™ ×Ô´øµÄÒ»¸ö´æ´¢¹ý³Ì£¬ÓÃÓÚ¸ü¸Äµ±Ç°Êý¾Ý¿âÖÐÓû§´´½¨µÄ¶ÔÏóµÄÃû³Æ£¬Èç±íÃû¡¢ÁÐ±í¡¢Ë÷ÒýÃûµÈ¡£
2.ÓÃÆóÒµ¹ÜÀíÆ÷ÖØÃüÃû
ÔÚ±íÉϵãÓÒ¼ü->“ËùÓÐÈÎÎñ”->“¹ÜÀí´¥·¢Æ÷”£¬Ñ¡ÖÐËùÒªÖØÃüÃûµÄ´¥·¢Æ÷£¬Ð޸Ĵ¥·¢Æ÷Óï ......
--°´Ä³Ò»×ֶηÖ×éÈ¡×î´ó(С)ÖµËùÔÚÐеÄÊý¾Ý
Êý¾ÝÈçÏ£º
name val memo
a 2 a2(aµÄµÚ¶þ¸öÖµ)
a 1 a1--aµÄµÚÒ»¸öÖµ
a 3 a3:aµÄµÚÈý¸öÖµ
b 1 b1--bµÄµÚÒ»¸öÖµ
b &n ......
×ªÔØËµÃ÷£º¸øÕýÔÚ×öϵͳºÍÏë×öϵͳµÄÈË£¬SQL²©´ó¾«ÉÄãÃÇ»áÓõ½µÄ¡£——mAysWINd
Ò»¸öÌâÄ¿Éæ¼°µ½µÄ50¸öSqlÓï¾ä
Student(S#,Sname,Sage,Ssex) ѧÉú±í
Course(C#,Cname,T#) ¿Î³Ì±í
SC(S#,C#,score) ³É¼¨±í
Teacher(T#,Tname) ½Ìʦ±í
ÎÊÌ⣺
1¡¢²éѯ“001”¿Î³Ì±È“002”¿Î³Ì³É¼¨¸ßµ ......
--µÚÒ»²½
--ÔÚmaster¿âÖн¨Á¢Ò»¸ö±¸·ÝÊý¾Ý¿âµÄ´æ´¢¹ý³Ì.
USE master
GO
CREATE PROC p
@db_name sysname, --Êý¾Ý¿âÃû
@bk_path NVARCHAR(1024) --±¸·ÝÎļþµÄ·¾¶
A ......