Hi
I 'd try to query on mysql database like this
" SELECT COUNT(distinct obj_id)
FROM mytable "
I just need only a count of unique obj_id .
I saw this method in mysql manual but It don't work ,so what's wrong ??
Mysql 3.22.29 on SunOs 5.6
Thank for all of you help
Tongdee S.
I 'd try to query on mysql database like this
" SELECT COUNT(distinct obj_id)
FROM mytable "
I just need only a count of unique obj_id .
I saw this method in mysql manual but It don't work ,so what's wrong ??
Mysql 3.22.29 on SunOs 5.6
Thank for all of you help
Tongdee S.