An exception with the type CX_SY_OPEN_SQL_DB occurred,plz solve this

Hi ,

i want 2 display the fields from crmd_order_index table.

i written the code in ON INTIALIZATION IS LIKE THIS

select guid

header

item

object_type

partner_no from crmd_order_index INTO

table index

WHERE object_type eq 'bus2000140' and partner_no eq partner_no.

BUT I M GETTING THE

An exception with the type CX_SY_OPEN_SQL_DB occurred,An exception with the type CX_SY_OPEN_SQL_DB occurred,

The data that was read could not be written to the specified target field during a SELECT access. Either the conversion is not supported for the type of the target field, or the target field is too short to accept the value, or the data is not in the appropriateformat for the target field.

PLEASE SOLVE THIS PROBLEM.

THANKS,

Usha