Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

PL/SQL¿éÖÐÈçºÎµ÷ÓÃDDLÓï¾ä

ÔÚPL/SQL¿éÖв»ÄÜÖ±½Óµ÷ÓÃDDLÓï¾ä£¬¿ÉÒÔÀûÓÃÏÂÃæµÄ·½·¨½øÐе÷ÓÃ
·½·¨Ò»£º¶¯Ì¬SQL
execute immediate 'CREATE TABLE newtable AS
                                                                 SELECT *
                                                                    from table_my
                                                                  WHERE 1 = 2; ';
·½·¨¶þ£º
¿ÉÒÔÀûÓÃORACLEÄÚÖðüDBMS_UTILITYÖеÄEXEC_DDL_STATEMENT¹ý³Ì£¬ÓÉËüÖ´ÐÐDDLÓï¾ä¡£
BEGIN
       -- ´´½¨ÓÃÓڼǼʼþÈÕÖ¾µÄÊý¾Ý±í
       DBMS_UTILITY.EXEC_DDL_STATEMENT('
              CREATE TABLE eventlog(
                     Eventname VARCHAR2(20) NOT NULL,
                     Eventdate date default sysdate,
 


Ïà¹ØÎĵµ£º

SQL Server×Ö·û´®·Ö¸î

 Ò»¡¢°´Ö¸¶¨·ûºÅ·Ö¸î×Ö·û´®£¬·µ»Ø·Ö¸îºóµÄÔªËظöÊý£¬·½·¨ºÜ¼òµ¥£¬¾ÍÊÇ¿´×Ö·û´®ÖдæÔÚ¶àÉÙ¸ö·Ö¸ô·ûºÅ£¬È»ºóÔÙ¼ÓÒ»£¬¾ÍÊÇÒªÇóµÄ½á¹û¡£
CREATE function Get_StrArrayLength
(
  @str varchar(1024),  --Òª·Ö¸îµÄ×Ö·û´®
  @split varchar(10)  --·Ö¸ô·û ......

50Ìõ³£ÓÃsqlÓï¾ä£¨ÒÔѧÉú±íΪÀý£©


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“”¿Î³Ì±È“”¿Î³Ì³É¼¨¸ßµÄËùÓÐѧÉúµÄѧºÅ£»
  SELECT a.S# from (SELECT s#,score from SC WHERE C#='001') a,
  (SELECT s#,score  ......

ÈçºÎÈÃÄãµÄSQLÔËÐеøü¿ì

 ----   ÈËÃÇÔÚʹÓÃSQLʱÍùÍù»áÏÝÈëÒ»¸öÎóÇø£¬¼´Ì«¹Ø×¢ÓÚËùµÃµÄ½á¹ûÊÇ·ñÕýÈ·£¬¶øºöÂÔ  
  Á˲»Í¬µÄʵÏÖ·½·¨Ö®¼ä¿ÉÄÜ´æÔÚµÄÐÔÄܲîÒ죬ÕâÖÖÐÔÄܲîÒìÔÚ´óÐ͵ĻòÊǸ´ÔÓµÄÊý¾Ý¿â  
  »·¾³ÖУ¨ÈçÁª»úÊÂÎñ´¦ÀíOLTP»ò¾ö²ßÖ§³ÖϵͳDSS£©ÖбíÏÖµÃÓÈΪÃ÷ÏÔ¡£±ÊÕßÔÚ¹¤×÷ʵ¼ù  
  Öз¢ÏÖ£ ......

²ËÄñѧϰSQL×¢Éä

 Ò»°ã¹úÄÚµÄСһµãµÄÐÂÎÅÕ¾µã³ÌÐò ¶¼ÓÐ ""&request ÕâÖÖ©¶´£¬ÏÂÃæÎÒ½²½â¹¥»÷·½·¨
ÔÚµØÖ·À¸£º
and 1=1
²é¿´Â©¶´ÊÇ·ñ´æÔÚ,Èç¹û´æÔÚ¾ÍÕý³£·µ»Ø¸ÃÒ³,Èç¹ûûÓÐ,ÔòÏÔʾ´íÎ󣬼ÌÐø¼ÙÉèÕâ¸öÕ¾µÄÊý¾Ý¿â´æÔÚÒ»¸öadmin±í
ÔÚµØÖ·À¸£º
and 0<>(select count(*) from admin)
·µ»ØÒ³Õý³£,¼ÙÉè³ÉÁ¢ÁË¡£
ÏÂÃæÀ´²Â²Â¿´ ......

ÈçºÎ·ÀÖ¹SQL×¢Èë¹¥»÷

BSϵͳÖУ¬´«Í³µÄ×¢Èë¹¥»÷ÊÖ¶ÎÓкܶࡣ
×î»ù±¾µÄ£¬ÀûÓõ¥ÒýºÅ¹¥»÷µÄ£¬ºÜÈÝÒ×½â¾ö£¬ÓÃÀàËÆÓÚQuotedStr()£¨Êµ¼Ê¿ª·¢ÊÇÆäËûÓïÑÔ£¬ÕâÀïÓÃDELPHIÖеĺ¯Êý´úÌ棩µÄº¯Êý´¦Àí²ÎÊý¼´¿É¡£
µ«Êµ¼ÊÓ¦ÓÃÖУ¬²»¿É±ÜÃâ»áÓÐһЩӦÓÃÐèÒªÖ±½Ó´«µÝ²ÎÊý£¬ÀýÈç±íÃû¡¢²éѯÌõ¼þ¡¢ÅÅÐòÌõ¼þµÈµÈ
¶ÔÕâЩӦÓõÄ×¢Èë¹¥»÷·À²»Ê¤·À¡£
ÎÒ¿¼ÂÇÁËÒ»¸ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ