Error in module RSQL of the database interface

Hi

I get this error "Error in module RSQL of the database interface." when the below ABAP statement executed,  do you know the root cuase? Thanks.

ABAP Code:

This is first select

SELECT QMNUM QMTXT QMDAT AUFNR OBJNR QMNAM QMART BTPLN IWERK BEBER INGRP  EQUNR SERIALNR MATNR
        INTOTABLE GT_VIQMEL
        FROM VIQMEL
        WHERE AUFNR IN S_AUFNR .

Note:

when i run this run with 25000 record .

Please help me ASAP

Thanks

Eman Elgammal.