db2时间相减获取相隔年月日时分秒方法

SELECT
timestampdiff (256, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔年”,
timestampdiff (128, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔季度”,
timestampdiff (64, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔月”,
timestampdiff (32, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔周”,
timestampdiff (16, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔日”,
timestampdiff (8, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔时”,
timestampdiff (4, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔分”,
timestampdiff (2, char(timestamp(‘2013-12-30 20:30:30’) - timestamp(‘2001-09-26 15:24:23’))) AS “间隔秒”
FROM SYSIBM.SYSDUMMY1;

百度出来了，以此记录！