select uat.* from user_all_tables uat;
select object_name, created,last_ddl_time from user_objects;
select uat.table_name as "表名",(select wmsys.wm_concat(to_char(last_ddl_time, 'yyyy-MM-dd HH24:mi')||'、') from user_objects where object_name = uat.table_name ) as "最后修改日期" from user_all_tables uat where uat.tablespace_name = 'ZHIYE';
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