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,色噜噜综合亚洲av中文无码,亚洲日本一线产区和二线产区对比http://m.tkk7.com/xiekai-blog/category/18491.html鍖楀啣鏈夐奔錛屽叾鍚嶄負椴層傞膊涔嬪ぇ錛屼笉鐭ュ叾鍑犲崈閲屼篃銆傚寲鑰屼負楦燂紝鍏跺悕涓洪箯銆傞箯涔嬭儗錛屼笉鐭ュ叾鍑犲崈閲屼篃銆傛掕岄錛屽叾緲艱嫢鍨傚ぉ涔嬩簯銆傛槸楦熶篃錛屾搗榪愬垯灝嗗緳浜庡崡鍐ャ傚崡鍐ヨ咃紝澶╂睜涔熴?
zh-cnTue, 31 Aug 2010 21:54:15 GMTTue, 31 Aug 2010 21:54:15 GMT60Oracle 鐨勫皬鎶宸?/title>http://m.tkk7.com/xiekai-blog/archive/2010/08/31/330430.html灝忚█韜灝忚█韜Tue, 31 Aug 2010 07:58:00 GMThttp://m.tkk7.com/xiekai-blog/archive/2010/08/31/330430.htmlhttp://m.tkk7.com/xiekai-blog/comments/330430.htmlhttp://m.tkk7.com/xiekai-blog/archive/2010/08/31/330430.html#Feedback0http://m.tkk7.com/xiekai-blog/comments/commentRss/330430.htmlhttp://m.tkk7.com/xiekai-blog/services/trackbacks/330430.html
SELECT
table_name,
Count(*) As 鍒楁暟
FROM
user_tab_columns
GROUP BY
table_name
]]>ORACLE鐨処NSTANCE(瀹炰緥)鍜孲CHEMA錛堟柟妗堛佹ā寮忥級http://m.tkk7.com/xiekai-blog/archive/2010/07/17/326417.html灝忚█韜灝忚█韜Sat, 17 Jul 2010 11:57:00 GMThttp://m.tkk7.com/xiekai-blog/archive/2010/07/17/326417.htmlhttp://m.tkk7.com/xiekai-blog/comments/326417.htmlhttp://m.tkk7.com/xiekai-blog/archive/2010/07/17/326417.html#Feedback0http://m.tkk7.com/xiekai-blog/comments/commentRss/326417.htmlhttp://m.tkk7.com/xiekai-blog/services/trackbacks/326417.html姣忎竴涓繍琛岀殑ORACLE鏁版嵁搴撲笌涓涓狾RACLE瀹炰緥錛圛NSTANCE錛夌浉鑱旂郴銆?br />
涓涓狾RACLE瀹炰緥涓哄瓨鍙栧拰鎺у埗涓鏁版嵁搴撶殑杞歡鏈哄埗銆?/span>姣忎竴嬈″湪鏁版嵁搴撴湇鍔″櫒涓婂惎鍔ㄤ竴鏁版嵁搴撴椂錛岀О涓虹郴緇熷叏灞鍖猴紙SYSTEM
GLOBAL AREA錛夌殑涓鍐呭瓨鍖猴紙綆縐癝GA錛夎鍒嗛厤錛屾湁涓涓垨澶氫釜ORACLE榪涚▼琚惎鍔ㄣ傝SGA 鍜?
ORACLE榪涚▼鐨勭粨鍚堢О涓轟竴涓狾RACLE鏁版嵁搴撳疄渚嬨?/span>涓涓疄渚嬬殑SGA鍜岃繘紼嬩負綆$悊鏁版嵁搴撴暟鎹佷負璇ユ暟鎹簱涓涓垨澶氫釜鐢ㄦ埛鏈嶅姟鑰屽伐浣溿?
ORACLE鍦ㄥ唴瀛樺瓨鍌ㄤ笅鍒椾俊鎭細
l 鎵ц鐨勭▼搴忎唬鐮併?
l 榪炴帴鐨勪細璇濅俊鎭?
l 紼嬪簭鎵ц鏈熼棿鎵闇鏁版嵁鍜屽叡浜殑淇℃伅
l 瀛樺偍鍦ㄥ瀛樺偍涓婄殑緙撳啿淇℃伅銆?
ORACLE鍏鋒湁涓嬪垪鍩烘湰鐨勫唴瀛樼粨鏋勶細
l 杞歡浠g爜鍖?
l 緋葷粺鍏ㄥ眬鍖?鍖呮嫭鏁版嵁搴撶紦鍐插瓨鍌ㄥ尯銆佹棩蹇楃紦鍐插尯鍜屽叡浜睜.
l 紼嬪簭鍏ㄥ眬鍖?鍖呮嫭鏍堝尯鍜屾暟鎹尯.
l 鎺掑簭鍖?
select T.騫村害, T.鐝駭鍙? T.縐戠洰鍙? T.鎴愮嘩錛孴.瀛︾敓瀛﹀彿錛?br />
dense_rank() over (partition by T.騫村害, T.鐝駭鍙? T.縐戠洰鍙?order by T.鎴愮嘩 desc) T.鎺掑悕
from T_QMKSCJ T
where T.鎺掑悕 = '1'
select T.騫村害, T.鐝駭鍚? T.縐戠洰鍚? T.鎴愮嘩錛孴.瀛︾敓瀛﹀彿錛孴.瀛︾敓濮撳悕錛?br />
dense_rank() over (partition by T.騫村害, T.鐝駭鍙? T.縐戠洰鍙?order by T.鎴愮嘩 desc) T.鎺掑悕
from
(select
A.騫村害, A.鐝駭鍙? A.縐戠洰鍙? A.鎴愮嘩錛孉.瀛︾敓瀛﹀彿錛孊.鐝駭鍚? C.瀛︾敓濮撳悕, D.縐戠洰鍚?br />
from
T_QMKSCJ A,
T_鐝駭 B,
T_瀛︾敓 C,
T_縐戠洰 D
where A.鐝駭鍙?= B.鐝駭鍙?br />
and A.瀛︾敓瀛﹀彿 = C.瀛︾敓瀛﹀彿
and A.縐戠洰鍙?= D.縐戠洰鍙?br />
) T
where T.鎺掑悕 = '1'
]]>杞繪澗瑙e喅CSE涓笉鏄劇ずTimeStamp鐨勯棶棰?/title>http://m.tkk7.com/xiekai-blog/archive/2007/10/25/155886.html灝忚█韜灝忚█韜Thu, 25 Oct 2007 08:09:00 GMThttp://m.tkk7.com/xiekai-blog/archive/2007/10/25/155886.htmlhttp://m.tkk7.com/xiekai-blog/comments/155886.htmlhttp://m.tkk7.com/xiekai-blog/archive/2007/10/25/155886.html#Feedback0http://m.tkk7.com/xiekai-blog/comments/commentRss/155886.htmlhttp://m.tkk7.com/xiekai-blog/services/trackbacks/155886.html
select timestamp from table
where ....
鍏跺疄鍙鍔犱笂to_char()鍛戒護錛屽氨鍙互璁╅殣钘忚搗鏉ョ殑鏁板間箹涔栨樉紺哄嚭鏉ャ?br />
select to_char(timestamp) from table
where ....
榪涗竴姝ワ紝榪樺彲浠ユ帶鍒舵樉紺虹殑鏍煎紡銆?br />
select
to_char(timestamp, 'yyyy/mm/dd hh:mi:ss')
from
table
where
rownum < 'n' --鍙樉紺鴻〃table涓墠n-1鏉¤褰曘?-
]]>Oracle涓璂ECODE鐨勪嬌鐢?/title>http://m.tkk7.com/xiekai-blog/archive/2007/01/22/95221.html灝忚█韜灝忚█韜Mon, 22 Jan 2007 01:57:00 GMThttp://m.tkk7.com/xiekai-blog/archive/2007/01/22/95221.htmlhttp://m.tkk7.com/xiekai-blog/comments/95221.htmlhttp://m.tkk7.com/xiekai-blog/archive/2007/01/22/95221.html#Feedback0http://m.tkk7.com/xiekai-blog/comments/commentRss/95221.htmlhttp://m.tkk7.com/xiekai-blog/services/trackbacks/95221.html 聽聽聽 DECODE(鏉′歡,鍊?,緲昏瘧鍊?,鍊?,緲昏瘧鍊?,...鍊糿,緲昏瘧鍊糿,緙虹渷鍊?
聽聽聽 璇ュ嚱鏁扮殑鍚箟濡備笅錛?br /> IF 鏉′歡=鍊? THEN 銆銆銆銆RETURN(緲昏瘧鍊?) ELSIF 鏉′歡=鍊? THEN 銆銆銆銆RETURN(緲昏瘧鍊?) 銆銆銆銆...... ELSIF 鏉′歡=鍊糿 THEN 銆銆銆銆RETURN(緲昏瘧鍊糿) ELSE 銆銆銆銆RETURN(緙虹渷鍊? END IF