oracle数据库里面的字符串转成数字类型,答:insert into a values (1,'aa');insert into a values (2,'bb');insert into a values (3,'cc');cimmit;取当前行的前一行数据 select id,name,lag(id,1)over(order by id),lag(name,1)over(order by id) from a where id in (2,3);取当前行的后一行数据 select id,name,lead...
sql 查询返回满足条件的行和下一行答:oracle里可以用ROWNUM伪列,写了一个例子用作参考:with t1 as (select rownum n,a,b,lead(rownum)over(order by rownum) ne from cc),t2 as (select n,a,b,ne from t1 where 5 in (a,b))select n,a,b from t2 union select n,a,b from t1 where n in (select ne from t2)把...
oracle-sql如何查出:一段时间内(输入时间区间),某数据,连续7天内出现...答:(select a.人名,a.日期,lead(a.日期,4,null)over(partition by 人名 order by q.日期) 五次后的日期 from (select 人名,trunc(时间,'dd')日期 from table geoup by 人名,trunc(时间,'dd')) a ) b where b. 五次后的日期-b.日期<=6 大概就是这么个意思。第二步select查出来的...