Hi I'm doing a simple query using the function STD but I'm getting zeros as answer. I know that zero is a perfectly good answer for standart deviation but in this case I should get some positive values :-) Is there something wrong with this function ? My sql string is the folowing and I'm using version 3.22.32. SELECT ROUND(ESTACOES.LAT_I,1) AS LAT, ROUND(ESTACOES.LON_I,1) AS LON, ROUND(AVG(ESTACOES.PROF_I),1) AS PRF, ROUND(AVG(ESTACOES_REC.RECRUTAS),1) AS REC, STD(ESTACOES_REC.RECRUTAS) AS STDEV FROM ESTACOES, ESTACOES_REC WHERE ESTACOES.CRUZEIRO=ESTACOES_REC.CRUZEIRO AND ESTACOES.ESTACAO=ESTACOES_REC.ESTACAO AND ESTACOES.CRUZEIRO!='2420982' GROUP BY LAT,LON Thanks EJ --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
