sql语句如何查日期字段的某天的数据?
1、创建测试表,
create table test_date(id varchar2(20), v_date date);
2、插入测试数据
insert into test_date values(1, to_date('2010-9-23 10:10:10','yyyy-mm-dd hh24:mi:ss'));
insert into test_date values(2, to_date('2010-9-24 10:10:10','yyyy-mm-dd hh24:mi:ss'));
insert into test_date values(3, to_date('2010-9-25 10:10:10','yyyy-mm-dd hh24:mi:ss'));
insert into test_date values(4, to_date('2010-9-26 10:10:10','yyyy-mm-dd hh24:mi:ss'));
insert into test_date values(5, to_date('2010-9-27 10:10:10','yyyy-mm-dd hh24:mi:ss'));
commit;
3、查询表中全量数据,select t.*, rowid from test_date t;
4、编写sql,查询日期为2010-9-23的数据;
select t.* from test_date t where to_char(v_date,'yyyymmdd') = 20100923;