OracleÖУ¬ÓÃÒ»ÌõSqlʵÏÖÈÎÒâµÄÐÐתÁÐÆ´½Ó ¶àÐÐÆ´½Ó
±í½á¹¹ºÍÊý¾ÝÈçÏ£¨±íÃûTest£©£º
NO VALUE NAME
1 a ²âÊÔ1
1 b ²âÊÔ2
1 c ²âÊÔ3
1 d ²âÊÔ4
2 e ²âÊÔ5
4 f ²âÊÔ6
4 g ²âÊÔ7
SqlÓï¾ä£º
select No,
ltrim(max(sys_connect_by_path(Value, ';')), ';') as Value,
ltrim(max(sys_connect_by_path(Name, ';')), ';') as Name
from (select No,
Value,
Name,
rnFirst,
lead(rnFirst) over(partition by No order by rnFirst) rnNext
from (select a.No,
a.Value,
a.Name,
row_number() over(order by a.No, a.Value desc) rnFirst
from Test a) tmpTable1) tmpTable2
&n
Ïà¹ØÎĵµ£º
OracleÊý¾Ý¿âÌṩÁ˼¸ÖÖ²»Í¬µÄÊý¾Ý¿âÆô¶¯ºÍ¹Ø±Õ·½Ê½£¬±¾ÎĽ«Ïêϸ½éÉÜÕâЩÆô¶¯ºÍ¹Ø±Õ·½Ê½Ö®¼äµÄÇø±ðÒÔ¼°ËüÃǸ÷×Ô²»Í¬µÄ¹¦ÄÜ¡£
Ò»¡¢Æô¶¯ºÍ¹Ø±ÕOracleÊý¾Ý¿â
¡¡¡¡¶ÔÓÚ´ó¶àÊýOracle DBAÀ´Ëµ£¬Æô¶¯ºÍ¹Ø±ÕOracleÊý¾Ý¿â×î³£Óõķ½Ê½¾ÍÊÇÔÚÃüÁîÐз½Ê½ÏµÄServer Manager¡£´ÓOracle 8iÒÔºó£¬ÏµÍ³½«Server ManagerµÄËùÓй¦Äܶ¼¼¯Öе ......
ÓÐÈË×ܽáÁËÊý¾Ý¿âÖÐNullÖµµÄ¸ÅÄ±È½Ï¾«Á¶£¬ÕªÂ¼ÈçÏ£º
NullÊÇÊý¾Ý¿âÖÐÌØÓеÄÊý¾ÝÀàÐÍ£¬µ±Ò»Ìõ¼Ç¼µÄij¸öÁÐΪNull£¬Ôò±íʾÕâ¸öÁеÄÖµÊÇδ֪µÄ¡¢ÊDz»È·¶¨µÄ¡£¼ÈÈ»ÊÇδ֪µÄ£¬¾ÍÓÐÎÞÊýÖֵĿÉÄÜÐÔ¡£Òò´Ë£¬Null²¢²»ÊÇÒ»¸öÈ·¶¨µÄÖµ¡£
ÕâÊÇNullµÄÓÉÀ´¡¢Ò²ÊÇNullµÄ»ù´¡£¬ËùÓк ......
Ò» ÒýÑÔ
Êý¾Ý²Ö¿â¼¼ÊõÊÇĿǰÒÑÖªµÄ±È½Ï³ÉÊìºÍ±»¹ã·º²ÉÓõĽâ¾ö·½°¸£¬ÓÃÓÚÕûºÍµçÐÅÔËÓªÆóÒµÄÚ²¿ËùÓзÖÉ¢µÄÔʼҵÎñÊý¾Ý£¬²¢Í¨¹ý±ã½ÝÓÐЧµÄÊý¾Ý·ÃÎÊÊֶΣ¬¿ÉÒÔÖ§³ÖÆóÒµÄÚ²¿²»Í¬²¿ÃÅ£¬²»Í¬ÐèÇ󣬲»Í¬²ã´ÎµÄÓû§ËæÊ±»ñµÃ×Ô¼ºËùÐèµÄÐÅÏ¢¡£Êý¾Ý²Ö¿âϵͳÐèÒªÄܹ»¼°Ê±µØ×·×ٺͷÖÎö´óÁ¿µÄÀúÊ·Êý¾Ý£¬²¢Äܹ»¼°Ê±×ö³ö·ÖÎöºÍÔ¤²â£¬Òò´ËÊ ......
¡¡¡¡1´´½¨Ð±í
¡¡¡¡1.1´Ó²éѯµ½µÄ±í´´½¨±í
¡¡¡¡create table temp as select stuName,stuNo,stuSex from stuInfo where stuAge>25;
¡¡¡¡1.2´´½¨Ð±í
¡¡¡¡/*ѧÉúÐÅÏ¢±í*/
¡¡¡¡create table stuInfo(
¡¡¡¡stuName varchar2(10) ,
¡¡¡¡stuNo varchar2(10),
¡¡¡¡stuSex varchar2(4),
¡¡¡¡stuAge number(2),
¡¡¡¡st ......
Navicat for xxx ÊÇÒ»¸öÓÅÐãµÄÊý¾Ý¿â¹ÜÀí¿Í»§¶Ë£¬ÓÐ MySQL¡¢Oracle µÈ°æ±¾¡£½¨Òé´ó¼Ò×îºÃÓà Enterprise °æ±¾£¬¹¦ÄÜÈ«ÃæÒ»Ð©£¬µ«½ÏÖ®ÓÚÃâ·ÑµÄ Lite °æ£¬ÆóÒµ°æ¿ÉÊÇÒª»¨Òø×ÓÂòµÄ¡£
°²×° Navicat for Oracle ºó£¬Ê×ÏÈÐèÒª½¨Ò»¸ö“Á¬½Ó”£¬×÷Ϊij¸ö¹ÜÀíÈÎÎñµÄ±êʶ£¬ÒòΪ×÷Ϊ¿ ......