sqlÓï¾ä²éѯÔõôÅжϲéѯ½á¹ûΪ¿Õ£¿
sqldataadapterÊʺÏÓÃÔÚ²éѯ½Ï¶à×Ö¶Îʱ.....
string sou = "select * from art where content like '%" + TextBox1.Text + "%'";
SqlDataAdapter da = new SqlDataAdapter(sou, conn);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].rows.count==0)
{
Response.Write("ûÓмǼ£¡");
}
else
{
this.sou.DataSource = ds;
this.sou.DataBind();
}
ÎÊÌâ³ö´¦:http://topic.csdn.net/u/20100120/18/815c7c81-51ab-4c30-ae81-138ebae9acc6.html?seed=1865372266&r=62957114#r_62957114
Ïà¹ØÎĵµ£º
¶¯Ì¬Óï¾ä
1 :ÆÕͨSQLÓï¾ä¿ÉÒÔÓÃexecÖ´ÐÐ
Select * from tableName
exec('select * from tableName')
exec sp_executesql N'select * from tableName' -- Çë×¢Òâ×Ö·û´®Ç°Ò»¶¨Òª¼ÓN
2:×Ö¶ÎÃû£¬±íÃû£¬Êý¾Ý¿âÃûÖ®Àà×÷Ϊ±äÁ¿Ê±£¬±ØÐëÓö¯Ì¬SQL
declare @fname varchar(20)
set @fname = 'FiledName'
Select @fnam ......
×òÌìŪÁËÒ»¸ö±È½Ï¼¬ÊÖµÄÎÊÌâ¡£´ÓÍøÉÏÏÂÔØÁËÒ»¸öÈí¼þ£¬ËûµÄÊý¾Ý¿âÊÇaccessµÄ£¬´ò¿ª¿´ÁËһϣ¬¸Ð¾õ²»´í£¬ÊʺÏÎÒÏÖÔÚÏîÄ¿µÄÐèÇ󣬴󲿷ÖÄܹ»Âú×ãÎÒµÄÏîÄ¿ÐèÒª£¬¾ÍÏëÄÃÀ´Ö÷Òå¡£¿ÉÊÇÎÒÃÇÏîÄ¿µÄÊý¾Ý¿âÒ»Ö±¶¼ÊÇÓõÄsqlserver£¬ÓÚÊÇ£¬¾ÍÔÚÍøÉÏ·è¿ñµÄ£¬ÕÒ¹ØÓÚaccessת»»ÎªsqlserverµÄ×ÊÁÏÔÚÕâÀïÎÒÏë˵һÏÂÓйصÄ×¢ÒâÊÂÏ
Êý¾Ý¿âÉý ......
½ñÌìÎÒѧϰÁËsqlµÄ¼òµ¥²éѯÓï¾ä£¬
һЩ»ù±¾µÄ¸ÅÄ
1 ϵͳȨÏÞ£ºÊý¾Ý¿âÖеĶÔÏó£¬ ±í£¬´´½¨±í£¬É¾³ý±í
2 ¶ÔÏóȨÏÞ£º¶ÔÊý¾ÝµÄÔö¡¢É¾¡¢¸Ä¡¢²é¡ ......
ÎÒ½ñÌìѧϰÁËOracleÊý¾Ý¿âÈçºÎÐ޸ıíµÄ֪ʶ£¬ÊÇ·ëÍþÀÏʦ½²µÄ¿Î£¬ÎÒ×öÁ˼òµ¥µÄ¼Ç¼£º
1.ÔÚ±íÖвåÈëеÄÁУº
alter table tablename
add city varchar£¨2£© default 'rr' //¸³Ä¬ÈÏÖµ
2.Ð޸ıíÖеÄÁУº
alter table tablename
modify city varchar£¨20£©
3.ɾ³ý±íÖеÄÁУº
alter t ......
´¦ÀíSQL ServerÊý¾Ý¿âÖеĹÂÁ¢Óû§(ͼ)
°ÑÊý¾Ý¿â´ÓÒ»¸ö·þÎñÆ÷ʵÀý¸½¼ÓºÍ»Ö¸´µ½ÁíÒ»¸öʵÀýÖÐÊÇÊý¾Ý¿â¹ÜÀíÔ±Ö´Ðеij£¼ûµÄÈÎÎñ¡£¸½¼Ó»òÕ߻ָ´Ò»¸öÊý¾Ý¿âÖ®ºó£¬Ö®Ç°ÔÚÊý¾Ý¿âÖд´½¨ºÍÅäÖõĵǼÃûÒѾ²»ÄÜ·ÃÎÊÁË¡£Õâ¸öÎÊÌâ×î³£¼ûµÄÖ¢×´ÊÇÓ¦ÓóÌÐò»áÓöµ½µÇ¼ʧ°ÜµÄ´íÎ󣬻òÕßÊǵ±ÄãÊÔ×ŰѵǼÃûÌí¼Óµ½Êý¾Ý¿âÖÐʱ£¬Äã¿ÉÄÜ»áµÃµ½Ò» ......