vb.net SQLÊý¾Ý¿â²Ù×÷£¨¶ÁÈ¡¡¢Ð޸ġ¢É¾³ý£©
Dim rs As ADODB.Recordset
Dim sqlstr As String
'²éѯ
sqlstr = "select * from ±íÃû where ×Ö¶ÎÃû = '" & ²éѯµÄÄÚÈÝ & "'"
rs = VScn.Execute("" & SqlStr & "")
If Not rs.EOF Then
TextBox1.Text = rs("×Ö¶ÎÃû").Value.ToString
End If
'ÐÞ¸Ä
sqlstr = "update ±íÃû set ×Ö¶ÎÃû= '" & ÒªÐ޸ĵÄÄÚÈÝ & "' where ×Ö¶ÎÃû= '" & ²éѯµÄÄÚÈÝ & "'"
VScn.Execute(sqlstr)
'ɾ³ý
sqlstr = "delete from ±íÃû where ×Ö¶ÎÃû= '" & ²éѯµÄÄÚÈÝ & "'"
VScn.Execute(sqlstr)
Ïà¹ØÎĵµ£º
1 TOP
ÕâÊÇÒ»¸ö´ó¼Ò¾³£Îʵ½µÄÎÊÌ⣬ÀýÈçÔÚSQLSERVERÖпÉÒÔʹÓÃÈçÏÂÓï¾äÀ´È¡µÃ¼Ç¼¼¯ÖеÄǰʮÌõ¼Ç¼£º
SELECT TOP 10 * from [index] ORDER BY indexid DESC;
µ«ÊÇÕâÌõSQLÓï¾äÔÚSQLiteÖÐÊÇÎÞ·¨Ö´Ðеģ¬Ó¦¸Ã¸ÄΪ£º
SELECT * from [index] ORDER BY indexid DESC limit 0,10;
ÆäÖÐlimit 0,10±íʾ´ÓµÚ0Ìõ¼Ç¼¿ªÊ¼£¬Íùºó ......
Ò»¡¢SQL×¢Èë·À·¶
ÔÚÒ»¸öWEB¶¯Ì¬Ò³ÃæÖУ¨ÀýÈçaspx»òÕßjsp£©£¬Õâ¸öÒ³ÃæÔÊÐíÓû§ÔÚÊäÈë¿òÖÐÊäÈë×Ö·û£¬Õâ¸ö×Ö·û¿ÉÒÔ±»ÒýÈëµ½Êý¾Ý¿âÖÐÈ¥½øÐвéѯ£¨ÕâÀïµÄ²éѯÊÇͨÓõÄ˵·¨£¬Êµ¼ÊÉϰüÀ¨ÁËÔöɾ¸Ä²é£©²Ù×÷¡£Ò»¸öºÚ¿ÍÔÚÕâ¸öÊäÈë¿òÖÐÊäÈëÁËÒ»¸ö»ûÐβéѯ×Ö·û´®£¬´Ó¶ø¸Ä±äÁËÔÓеIJéѯ£¬Õâ¿ÉÒÔ±»ÓÃÀ´²åÈ룬¸Ä±ä£¬»òË𺦺ǫ́Êý¾Ý¿â¡£Ôõà ......
Option Explicit
Private Const ERROR_CACHE_FIND_FAIL As Long = 0
Private Const ERROR_CACHE_FIND_SUCCESS As Long = 1
Private Const ERROR_FILE_NOT_FOUND As Long = 2
Private Const ERROR_ACCESS_DENIED As Long = 5
Private Const ERROR_INSUFFICIENT_BUFFER As Long = 122
Private Const MAX_PATH As Long ......
Ò»Ö±ÏëдÏÂÊý¾Ý¿â²Ù×÷·½ÃæµÄ£¬Ö»ÊÇûʲôʱ¼ä£¨ºÃÏñÊǽè¿Ú£¬Ó¦¸ÃÊÇÀÁ»òÕßûÐÄÇé°É£¬ºÇºÇ£©¡£×î½ü·¢ÏÖCSDNÉÏ
»¹ÊÇÿÌìÓÐÈËÒªÎÊÕâЩÄÚÈÝ£¬ÎÒÓеÄʱºò¾ÍÀÁµÄ»Ø´ð£¬ºÇºÇ£¬Ö÷Òª²»¶ÏµÄÈ¥ÕÒ´úÂë¸øËûÃÇÀÛ°¡¡£ËùÒÔ»¹ÊÇÌý¸ßÈ˵ģ¬À´
¸öÒ»ÀÍÓÀÒÝ£¬×Ô¼ºÖØÐÂÎÂϰÏ£¬Ò²ºÃ¸øÆäËûÈËһЩ°ïÖú¡£
Õâ¸öÊ ......
Êý¾Ý¿âÖ´ÐÐexec sp_renamedb 'oldname','newname'Óï¾ä£¬ÖØÃüÃûºó£¬½«Êý¾Ý¿â±¸·ÝÎļþ»¹Ôʱ£¬»á³öÏÖ´íÎó£¬Èçͼ
ÒòÊýÊý¾ÝÎļþÓëÊý¾Ý¿âÃû³Æ²»Ò»Ö¡£
½â¾ö·½·¨£º¿ÉÒÔÕÒµ½Êý¾ÝÎļþµÄÃû³Æ£¬½«Êý¾Ý¿â»¹ÔÃû³Æ¸úÊý¾Ý¿âÎļþÒ»ÖµÄÃû³Æ£¬´Ëʱ»¹Ô³É¹¦ºó£¬ÔÙÐÞ¸ÄÊý¾Ý¿âµÄÃû³Æ¡£
×¢£ºÊý¾Ý¿âÖØÃüʱ£¬Ð轫SQL·þÎñÆ÷Í£Ö¹£¬ÖØÃüÃûºóÔÙÖØÐ ......