there is a project that need collecting periodically (2 months) data into one table and then exporting it as excel file. the table is a temporary table, the app do that delete from tb_name;insert into tb_name values........insert into tb_n
there is a project that need collecting periodically (2 months) data into one table and then exporting it as excel file. the table is a temporary table, the app do that
delete from tb_name;insert into tb_name values........insert into tb_name values.....
with that method, it would be causing more and more tablespace fragments, and make the performance decresing.in other to avoid this disadvantage influences, i suggest programer modify the app as
truncate table tb_name drop storage;insert into tb_name select * from ...
the delete operation will be causing tablespace fragments.