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ʱ¼ä             ˫ɫÇò£¬  ʤ¸º²Ê¡£¡£¡£¡£¡£
200905     ÏúÁ¿       ÏúÁ¿
200906     ÏúÁ¿       ÏúÁ¿
200907     ÏúÁ¿       ÏúÁ¿
200908     ÏúÁ¿       ÏúÁ¿
Ò»¸öSQL Óï¾äµÃµ½½á¹ûÊÇ£º
f_yearmonth, lot_name,money
200905   ˫ɫÇò    50
200905   ʤ¸º²Ê   100
200906   ˫ɫÇò   60
200906   ʤ¸º²Ê    70
Select f_yearmonth,
Max(decode(f_lotname,'˫ɫÇò',f_money,0)) As "˫ɫÇò",
Max(decode(f_lotname,'¸£²Ê3D',f_money,0)) as "¸£²Ê3D",
Max(decode(f_lotname,'ʤ¸º²Ê',f_money,0)) as "ʤ¸º²Ê",
Max(decode(f_lotname,'ʱʱ²Ê',f_money,0)) as "ʱʱ²Ê",
Max(decode(f_lotname,'ʱʱÀÖ',f_money,0)) as "ʱʱÀÖ",
 from
 t_tmp_test_A
 Group By f_yearmonth
 Order By f_yearmonth
¹Ø¼üÓï¾ä£º
 Max(decode(f_lotname,'˫ɫÇò',f_money,0)) As "˫ɫÇò",
 Group By f_yearmonth
ӦΪ °´Ê±¼äÖØ×éÖ»ÓÐÒ»Ìõ£¬²¢ÇÒÖ»ÓÐÒ»ÌõÊý¾Ý£º  200905   ˫ɫÇò    50 
ÄÇô ÓÃMAXȡһÌõÊý¾Ý ¾ÍÊÇ50
decode Òâ˼˵ Èç¹ûÊǑ˫ɫÇò’ È¡¶ÔÓ¦µÄf_money  ²¢ÇÒ·ÅÔÚ ÃüÃûΪ "˫ɫÇò"µÄ ÁÐÉÏ¡£
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Oracle PL/SQL¿é½á¹¹ºÍ×é³ÉÔªËØÑ§Ï°±Ê¼Ç(Ò»)

Ò»£¬PL/SQL¿éµÄ½á¹¹ºÍ×é³ÉÔªËØ
PL/SQL³ÌÐòÓÉÉùÃ÷²¿·Ö£¬Ö´Ðв¿·Ö£¬Òì³£´¦Àí²¿·ÖÈý¸ö²¿·Ö×é³É¡£½á¹¹ÈçÏ£º
DECLARE
/*ÉùÃ÷²¿·Ö£ºÔÚ´ËÉùÃ÷PL/SQL±äÁ¿£¬ÀàÐͼ°Óα꣬ÒÔ¼°¾Ö²¿µÄ´æ´¢¹ý³ÌºÍº¯Êý*/
BEGIN
/*Ö´Ðв¿·Ö£º¹ý³Ì¼°sqlÓï¾ä£¬³ÌÐòÖ÷Òª²¿·Ö£¬ÊDZØÐëµÄ*/
EXCEPTION
/*Òì³£´¦Àí²¿·Ö£º´íÎó´¦Àí*/
END
 
PL/SQL¿ ......

Oracle ѧϰ±Ê¼Ç: RMAN³£ÓÃÃüÁî

1 . set database to archivelog mode
Sql´úÂë
SQL> shutdown immediate;   
Database closed.   
Database dismounted.   
ORACLE instance shut down.   
  
SQL> startup mount;   
ORACLE&n ......

ROLLUPºÍCUBEÓï¾ä¡£ ORACLE·Ö×éͳ¼Æ


ROLLUPºÍCUBEÓï¾ä¡£
OracleµÄGROUP
BYÓï¾ä³ýÁË×î»ù±¾µÄÓï·¨Í⣬»¹Ö§³ÖROLLUPºÍCUBEÓï¾ä¡£Èç¹ûÊÇROLLUP(A, B, C)µÄ»°£¬Ê×ÏÈ»á¶Ô(A¡¢B¡¢C)½øÐÐGROUP
BY£¬È»ºó¶Ô(A¡¢B)½øÐÐGROUP BY£¬È»ºóÊÇ(A)½øÐÐGROUP BY£¬×îºó¶ÔÈ«±í½øÐÐGROUP BY²Ù×÷¡£Èç¹ûÊÇGROUP BY
CUBE(A, B, C)£¬ÔòÊ×ÏÈ»á¶Ô(A¡¢B¡¢C)½øÐÐGROUP
BY£¬È»ºóÒÀ´ÎÊÇ( ......

OracleÓÃÓαê·Ö½âºÅÂë´ÎÊý

drop table tb_wjf_xh_dg100_50_tmp4 purge; 
create table tb_wjf_xh_dg100_50_tmp4
 (
 servnumber varchar(11)
 )
;
  
declare
      vv_cusor_servnumber  varchar2(32);
      vv_cusor_lost_cnt  & ......
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