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Oracle 8.17
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Oracle 9i
鏁版嵁搴撲竴鍙幫紝涓よ呴棿寤烘湁涓涓?/span>
DBLink
灝嗙浉鍏崇殑
shema
榪炴帴璧鋒潵銆傚湪
Oracle 9i
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Table A,
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Field Name |
Field Type |
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鈥?. |
||
confirm_time |
Timestamp |
|
creation_time |
Date |
|
鈥︹?/span> |
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鏈変竴涓?/span> Java 紼嬪簭閫氳繃 JDBC 榪炴帴鍒?/span> Oracle 8 閭d竴绔紝鐜板湪榪欎釜搴旂敤紼嬪簭闇瑕侀氳繃 DBLink 璁塊棶 Oracle 9i 涓殑 Table A. 鍐欎笅濡備笅鐨勬煡璇㈣鍙ワ細
select nvl(confirm_time, creation_time) from A@.....
璇ヨ鍙ュ湪 SQL Plus 錛?/span> PL/SQL Developer 錛変腑鎵ц鑳藉瀹屾垚騫惰繑鍥炴紜殑緇撴灉錛屼絾灝嗚璇彞鏀懼叆 PreparedStatement 鎵ц鏄紝鍗村緱鍒伴敊璇細鈥?/span> ORA-03115: unsupported network datatype or representation 鈥?/span>
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Oracle 8 涓繕涓嶅瓨鍦?/span> Timestamp 榪欐牱鐨勬暟鎹被鍨嬶紝鑰屾棤璁烘槸瀛楁 confirm_time, 榪樻槸琛ㄨ揪寮?/span> nvl(confirm_time, creation_time) 榪斿洖鐨勯兘鏄?/span> Timestamp 綾誨瀷錛屾晠浼氬緱鍒?/span> ORA-03115 鐨勯敊璇傦紙鍦?/span> PL/SQL Developer 涓負浣曚笉鍑洪敊灝變笉鐭ラ亾浜嗭紝鍛靛懙 鈥? 瑙佺瑧瑙佺瑧鍟︼級
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鍦?/span> SQL 璇彞涓皢 Timestamp 杞寲涓?/span> Date 綾誨瀷錛屽錛?/span>
select nvl(to_date(to_char(confirm_time, 鈥測yyy-mm-dd hh24:mi:ss鈥?, 鈥測yyy-mm-dd hh24:mi:ss鈥?, creation_time) from A@........