作者zusocfc (CFC)
看板Database
标题Re: [SQL ] 删除特定条件的语法问题
时间Wed Aug 20 20:20:54 2008
※ 引述《erho (ptt访客)》之铭言：
: 我的资料库是oracle
: 我要删掉满足下列语法的所有资料
: select he_code,eff_date from newmed
: minus
: select he_code,max(eff_date) from newmed group by he_code;
: 我用
: delete * from (select he_code,eff_date from newmed minus
: select he_code,max(eff_date) from newmed group by he_code);
: oracle 回应我错误讯息
: ERROR at line 1:ORA-00903: invalid table name
: 若把 * 号去掉则错误讯息为
: ERROR at line 1:
: ORA-01732: data manipulation operation not legal on this view
: 请问我要如何修正我的delete 语法
DELETE FROM newmed WHERE eff_date IN (SELECT eff_date FROM (SELECT he_code,
eff_date FROM newmed MINUS SELECT he_code, max(eff_date) FROM newmed GROUP BY
he_code));
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