I got an exception
E:/TradingTools/CODE/ImportTrade.rb:20:in `execute'

The associated piece of code is
st= dbConn.prepare("insert into raw_data
 
(SYMBOL,ACTION,SIZE,PRICE,DATE_TIME_OF_TRADE ,EXECUTION,ACCOUNT_ID)
                VALUES(?,?,?,?,?,?,?)")
st.execute(dataArray[0],dataArray[1],dataArray[2],dataArray[3],tradeDate,dataArray[5],dataArray[6])
        st.close

How do i find out what the exception details were that was triggered
at st.execute   in this case.
any assistance will be appreciated