I have two columns:
我有两个列:
job_start job_end
2011-11-02 12:20:37.247 2011-11-02 13:35:14.613
job_start I have two columns:
我有两个列:
job_start job_end
2011-11-02 12:20:37.247 2011-11-02 13:35:14.613
job_start