Hello , I hope you could help me. I have a small difference in te result of this query QUERY SELECT `an0300_polizas_desgloce`.cuenta, `an0200_polizas`.fecha, sum(`an0300_polizas_desgloce`.debito), sum(`an0300_polizas_desgloce`.credito), (sum(`an0300_polizas_desgloce`.debito)-sum(`an0300_polizas_desgloce`.credito)), an0100_cuentas.nombre FROM `an0100_cuentas` INNER JOIN `an0300_polizas_desgloce` ON (`an0100_cuentas`.cuenta = `an0300_polizas_desgloce`.cuenta) INNER JOIN `an0200_polizas` ON (`an0300_polizas_desgloce`.id_poliza = `an0200_polizas`.id_poliza) WHERE ( (`an0300_polizas_desgloce`.cuenta = '110201000') and (`an0200_polizas`.fecha like '2004-01-%') ) GROUP BY `an0300_polizas_desgloce`.cuenta ORDER BY `an0300_polizas_desgloce`.id_poliza
RESULT cuenta |fecha |sum_debito | sum_credito |total | nombre 110201000 |04/01/23 |410336.6 | 413758.07 |-3421.46 | HSBC As you could see, if you substract 410336.6 to 413758.07 the result is -3421.47 Why the result that mysql show me in the total column is different? --------------------------------- Do You Yahoo!? Yahoo! Net: La mejor conexión a internet y 25MB extra a tu correo por $100 al mes.