发布网友 发布时间:2022-05-03 00:19
共2个回答
懂视网 时间:2022-05-03 04:41
select emp_no,dept_code,name from
(
select
b.emp_no,b.dept_code, b.name,
row_number() over(partition by name order by name desc)a from staff_dict b)
where a>=2
select vsize(‘汉‘) from dual;
select userenv(‘language‘) from dual;
oracle无主键去重方法
标签:taf user ber use name order by partition art lan
热心网友 时间:2022-05-03 01:49
select distinct 字段名 from 表名;