ÈÃÈË·¢¿ñµÄsqlÓï¾ä£¡
StringBuilder Asql = new StringBuilder();
Asql.Append(" select '' as 'ÐòºÅ', T_Station.µµ°¸ºÅ,T_Station.StationName as '̨վÃû' , ");
Asql.Append(" ÇøÕ¾ºÅ.ÇøÕ¾ºÅ , ");
Asql.Append(" ̨վ¼¶±ð.̨վ¼¶±ð , ");
Asql.Append(" ËùÊô»ú¹¹.ËùÊô»ú¹¹ , ");
Asql.Append(" ̨վλÖÃ.̨վλÖà , ");
Asql.Append(" ̨վÖÜΧÕϰÎï.̨վÖÜΧÕϰÎï , ");
Asql.Append(" ¹Û²âÒªËØ.¹Û²âÒªËØ , ");
Asql.Append(" ¹Û²âÒÇÆ÷.¹Û²âÒÇÆ÷ , ");
Asql.Append(" ¹Û²âÊ±ÖÆ.¹Û²âÊ±ÖÆ , ");
Asql.Append(" ¹Û²âʱ¼ä.¹Û²âʱ¼ä , ");
Asql.Append(" ÊØ°àÇé¿ö.ÊØ°àÇé¿ö , ");
Asql.Append(" ÆäËû±ä¶¯ÊÂÏî.ÆäËû±ä¶¯ÊÂÏî , ");
Asql.Append(" ¹Û²â¼Ç¼.¹Û²â¼Ç¼ , ");
Asql.Append(" ¹Û²â¹æ·¶.¹Û²â¹æ·¶ , ");
Asql.Append(" ²ÉÑù·½Ê½.²ÉÑù·½Ê½ , ");
Asql.Append(" ÑØ¸ïÊý¾ÝÀ´Ô´.ÑØ¸ïÊý¾ÝÀ´Ô´ , ");
Asql.Append(" ±à±¨ÈËÔ±.±à±¨ÈËÔ± ");
&
Ïà¹ØÎĵµ£º
create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ
......
×öÊý¾Ý¿âµ÷ÓÅ£¬Ò»¸ö¼òµ¥µÄtip¾ÍʹÐÔÄÜÌáÉýÒ»´ó¿éʱ£¬±»°ïÖúµÄÈË×ÔÈ»ÊǸßÐ˶øÇҸм¤£¬ÎÒÒ²ÊÇÂúÐÄ»¶Ï²¡£ÓÃËùѧ°ïÖúÁËËûÈË£¬Ò²ËµÃ÷»¹ÊÇÓÐÒ»¼¼Ö®³¤µÄ£¬ÓÐÒ»ÃÅÄܹ»Ñø»î×Ô¼ºµÄÊÖÒÕ¡£Ò²ËãÊÇÊÖÒÕÈ˰¡¡£
ͬÊÂÈÃÎÒ°ïÖúÓÅ»¯£¬ÔÚslow query logÀï·¢ÏÖÓÐÁ½¸öSQLÖ´ÐеĴÎÊý×î¶à£¬²¢ÇÒÿ´Î¶¼ÔÚÁ½ÃëÒÔÉÏ¡£ÓÃexplain¿´ÁË£¬Ò²Î´·¢ÏÖË÷ÒýʹÓ÷ ......
50¸öSqlÓï¾ä£¬½ö¹©Ñ§Ï°£¡
Student(S#,Sname,Sage,S***) 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¨¸ßµÄËùÓÐѧÉúµÄѧºÅ£»
select a.S# from (select s#,score from SC ......
ÎÒÃÇÒª×öµ½²»µ«»áдSQL,»¹Òª×öµ½Ð´³öÐÔÄÜÓÅÁ¼µÄSQL,ÒÔÏÂΪ±ÊÕßѧϰ¡¢ÕªÂ¼¡¢²¢»ã×ܲ¿·Ö×ÊÁÏÓë´ó¼Ò·ÖÏí£¡
£¨1£© Ñ¡Ôñ×îÓÐЧÂʵıíÃû˳Ðò(Ö»ÔÚ»ùÓÚ¹æÔòµÄÓÅ»¯Æ÷ÖÐÓÐЧ)£º
ORACLE µÄ½âÎöÆ÷°´ÕÕ´ÓÓÒµ½×óµÄ˳Ðò´¦Àífrom×Ó¾äÖеıíÃû£¬from×Ó¾äÖÐдÔÚ×îºóµÄ±í(»ù´¡±í driving table)½«±»×îÏÈ´¦Àí£¬ÔÚfrom× ......