ORA-00972: identifier is too long

Hi EveryOne,
when i try to execute the below code it says,
ORA-00972: identifier is too long
at the lineadapter1.Fill(Ora_Dataset)

CODE:
Sub BindGrid()
sSql=Select * from Audit_Exceptions where Audit_ID=+ sauditid + and TO_CHAR(Audit_Date,MM/DD/YYYY)= +sauditdate + and Exception_Status=+ exceptionStatus+

adapter1=New OracleDataAdapter(sSql,Ora_Conn)
adapter1.Fill(Ora_DataSet )
grid.DataSource=Ora_DataSet
grid.DataBind()
EndSub

I checked the name of the table and Columns , but all are less than 30 characters
When i selected the values in dropdownlist and click a button(which is that page below the dropdownlists) it shows me this error!

where auditdate has a DATE datatype
Auditid has Number datatype
Exceptionstatus has varchar datatype

When i keep break points on this code and whenevr the SQL stmt shows values in watch window i just copied the statement and executed in SQL Plus
it gave me the result rows.
I tried every possibility,by creating a new table again and changing the column names.But still it didn't wrk!!!