I am connect from a Oracle 7.3.2 to Oracle 8.1.5 , and the 8.1.5 also connect to another oracle 8.0.5;
I execute some procedure on 7.3.2 , I can execute it with debug mode ; but when in working mode , I get the error 'ora-02068'; My Procedure write in 8.1.5,which between the 7.3.2 and 8.0.5. I use the dblink . The dblink had run normal five month , but now it can't work. Help Me!

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Since the database in the 8.0.5 rebuilt , I modified my dblink define ,I can access other object through the dblink ,even I can execute my procedure with SQL*Plus correctly . Now I found new msg: 'ora-02062',sometimes it appear. If I drop the dblink and restart the Oracle service in 8.1.5(the middle of 7.3.2 and 8.0.5), my procedure can work a short time then it return with others exception. Who can tell me why and how to do with this?