回答：此问题是因为数据存在重复的表： 一般是2个表 EMM_MTL_DAT_RKTZ ESM_CLT_DAT_JHD

----删除即可
delete SYS_TABLES where tbl_id='EMM_CLT_DAT_RKTZ'
delete EMM_SYS_TABLES where tbl_id='EMM_CLT_DAT_RKTZ'
delete SYS_TABLES where tbl_id='EESM_CLT_DAT_JHD'
delete EMM_SYS_TABLES where tbl_id='ESM_CLT_DAT_JHD'

--------检查语句

SELECT Tbl_Id, Tbl_Name FROM SYS_TABLES WHERE sys_valid='1' AND tbl_type IN ('dat', 'dat1')  
 		UNION ALL  
 		SELECT Tbl_Id, Tbl_Name FROM EMM_SYS_TABLES WHERE sys_valid='1' AND tbl_type IN ('dat', 'dat1')