摘要: sqlserver 中 select * from yonghuxx t where t.yonghuh= (case when :yonghuh='' then t.yonghuh else :yonghuh end); oracle 中 select * from yonghuxx t wher 阅读全文
posted @ 2021-01-21 17:07 BengBaLaHei 阅读(530) 评论(0) 推荐(0)
摘要: 首先得到年头年尾日期 select to_date('2020-01-01', 'yyyy-mm-dd') into v_start from dual; select to_date('2020-12-31', 'yyyy-mm-dd') into v_end from dual; 循环 WHIL 阅读全文
posted @ 2021-01-21 17:00 BengBaLaHei 阅读(109) 评论(0) 推荐(0)