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

ms sql Ò»´Î²åÈë¶àÌõ¼Ç¼µÄÓï¾ä

ÓеÄʱºòÎÒÃÇÐèÒªÒ»´ÎÏñÊý¾Ý¿âÖÐÌí¼Ó¶àÌõ¼Ç¼£¬ÎÒÃÇ¿ÉÒÔʹÓÃÏÂÃæµÄÓï¾äÀ´ÊµÏÖ£º
--Ìí¼ÓÒ»Ìõ¼Ç¼
INSERT INTO tableName(col1,col2,col3) VALUES (1,2,3)
--Ìí¼Ó¶àÌõ¼Ç¼
INSERT INTO tableName(col1,col2,col3)
SELECT 3,4,5
UNION ALL
SELECT 6,7,8
--´ÓÁíÍâµÄÒ»ÕűíÖжÁÈ¡¶àÌõÊý¾ÝÌí¼Óµ½Ð±íÖÐ
INSERT INTO tableName(col1,col2,col3)
SELECT a,b,c from tableA
--´ÓÆäËûµÄ¶àÕűíÖжÁÈ¡Êý¾ÝÌí¼Óµ½Ð±íÖÐ
INSERT INTO tableName(col1,col2,col3)
SELECT a,b,c from tableA WHERE a=1
UNION ALL
SELECT a,b,c from tableB WHERE a=2
ÔÚmysql¿ÉÒÔÕâÑù
insert
 
into
 tablefortest(a,b)
values
(
1
,
2
) ,(
3
,
4
) ,(
5
,
6
)


Ïà¹ØÎĵµ£º

ÓÃASP.NET»¹Ô­Óë»Ö¸´Sql server

ÉÏ´Î×öÁ˸öÏîÄ¿£¬Éæ¼°µ½Êý¾Ý¿âµÄ»¹Ô­ºÍ»Ö¸´£¬µ½ÍøÉÏÕÒÁËһϣ¬ÊÇÀûÓÃSQLDMOʵÏֵģ¬Ö»ÒªÌí¼ÓSQLDMOÒýÓþͺÃÁË£¬È»ºóÀûÓÃϱߵÄÀàµÄ·½·¨¾Í¿ÉÒÔʵÏÖÁË¡£
¡¡¡¡ÎÒ°ÑÔ­×÷ÕßµÄÀàÀ©³äÁËһϣ¬¿ÉÒÔ×Ô¶¯Ê¶±ðweb.configÀï µÄÊý¾Ý¿âÁ¬½Ó×Ö·û´®£¬¿ÉÒÔͨ¹ý±äÁ¿ÉèÖû¹Ô­»Ö¸´µÄÐÅÏ¢¡£
¡¡¡¡ÐèҪעÒâµÄʱ»¹Ô­£¬»¹Ô­µÄʱºòÎÊÌâ×î´óÁË£¬Óбð ......

sqlµÝ¹é²éѯ

ÔÚ¹¤×÷ÖÐÓöµ½Ò»¸öÎÊÌâ,ÊÇÐèÒªsqlµÝ¹é²éѯµÄ.²»¶®,ÓÚÊǵ½csdnÉÏÈ¥ÎÊ,ÄÇÀïµÄЧÂÊÕæÊǷdz£¸ß,ÎÒÒÔǰҲûÔÚÉÏÃæÎʹýÎÊÌâ.
ÎÊÌâÃèÊö:
ÎÒÓÐÒ»¸ö±í½á¹¹ÈçÏÂ:
id upperid
1     2
3     2
4     1
5     3
¾ßÌå²ã´Î²»ÖªµÀ,ÎÒÏëÓõݹésqlÓ ......

SQLiteÖв»Ö§³ÖµÄsqlÓï·¨

½ñÌìºÜ×ÔÈ»µÄÔÚдSqlÓï¾äµÄʱºòÓÃÁËTop£¬Ò»¿ªÊ¼Ã»·¢ÏÖÎÊÌ⣬ÒòΪÎÒ´ÓÊý¾Ý¿â¶Á³öµÄÖµÕýºÃÊÇ0£¬¶øÎÒϰ¹ß±äÁ¿¶¨ÒåµÄʱºòÒ²¶¼¸³Öµ0£¬¿ÉÊǵ½ÎÒ²»Òª0µÄʱºòÎҾͷ¢ÏÖÎÊÌâÁË¡£ºóÀ´²ÅÖªµÀ£¬¿É°®µÄСsqlite¾¹È»Óв»Ö§³ÖµÄsqlÓï·¨¡£
¡¡¡¡¿´µ½Ä³¸öÂÛ̳ÓиöÐÂÊÖÒ²·¢ÏÖÁËÕâ¸öÎÊÌâ²¢·¢ÌûÁË£¬ÏÂÃæÒ»Å£È˵Ļظ´ÊÇ“topÊÇÄļҵĹؼü´Ê?s ......

C#ÓëSQL Server 2000ʵÏÖÎÞÏÞ¼¶²Ëµ¥


//tree.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Syst ......

ʹÓÃSQLÓï¾ä

ʹÓÃSQLÓï¾ä
        SQLÓïÑÔ°üÀ¨Êý¾Ý²éѯÓïÑÔ(SELECT)¡¢Êý¾Ý²Ù×ÝÓïÑÔ(INSERT¡¢UPDATE¡¢DELETE)¡¢ÊÂÎñ¿ØÖÆÓïÑÔ(COMMIT¡¢ROLLBACK¡¢SAVEPOINT)¡¢Êý¾Ý¶¨ÒåÓïÑÔ(CREATE TABLE¡¢ALTER TABLE¡¢DROP)¡¢Êý¾Ý¿ØÖÆÓïÑÔ(GRANT¡¢REVOKE)µÈÎå¸ö²¿·Ö¡£
µ±±àдPL/SQLÓ¦ÓóÌÐòʱ£¬Ö»ÄÜÖ±½ÓǶÈëSELECT ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ