/* Database summary for: a_ex */
/* Number of blocks: 4 */
/*   0  n= 300   a_ex001.blk */    2018/10/02  16:53:59  to   2018/10/03  02:51:58
/*   1  n= 300   a_ex002.blk */    2018/10/03  02:53:58  to   2018/10/03  12:51:57
/*   2  n=  48   a_ex003.blk */    2018/10/03  12:53:57  to   2018/10/03  14:26:52
/*   3  n=  59   a_ex004.blk */    2018/10/04  09:28:23  to   2018/10/04  11:24:23