select epoch from val_1 where epoch='2007-12-23 23:12:01' select epoch from val_1 where epoch!='2007-12-23 23:12:01' select nObs from val_1 where nObs=159 select name from val_1 where name='popular' 1000 ]]> 2e1 ]]> select nObs from val_1 where nObs BETWEEN 0 and 1 select nObs from val_1 where nObs NOT BETWEEN 0 and 1 =159]]> 159]]> ='nullObject']]> select name from val_1 where name between 'south1' and 'south3' nObs]]> =nObs]]> select * from val_1 where nObs=0 [ ('2007-12-23 23:12:01', 'nullObject', NULL, NULL, NULL, NULL, NULL, 0) ]