Problem in accessing data from Database

Problem in accessing data from Database

hi..... i'm making a project on servlet and jsp with ms access 2007 at the backend. One field in my database is text and all others are of currency data type. If i enter 0 or null value in currency column and then try to retrieve data using my servlet coding the result is not displayed.......the error states......"The message log is Null".

Can someone plz help me out with this problem......................

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