alter table 问题
<p>alter table EPM_F_APPLY<br/> add foreign key FK_EPM_F_AP_RELATIONS_D_DATE_M (MONTH_ID)<br/> references D_DATE_M (MONTH_ID)<br/> on delete restrict on update restrict</p><p>执行这句话,提示</p><p>Error: com.sybase.jdbc3.jdbc.SybSQLException: ASA Error -1000018: The object cannot be opened for DROP or ALTER. It is already open. <br/>-- (db_txnInfo.cxx 710) , SQL State: QDA18, Error Code: 21</p><p>这怎么解决?</p> <p>这个错误是可重复的么?</p><p>重新启动server看看</p> 我没重启数据库,不过过一段时间之后就能执行了,为什么呢?
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