oracle 转译(oracle转数值)

Exce表格网 2023-01-17 05:35 编辑:admin 249阅读

1. oracle 转译

wm_concat非标准函数,不保证以后会支持

标准写法:

with t as (select name,row_number() over(order by name) rn from 表)

select name, rn, sys_connect_by_path(name, ',') path

from t

start with rn=1 connect by prior rn+1=rn

2. oracle转数值

SELECT*FROM(SELECTkey,strFROMtablet)pivot(max(str)forkeyin('hyl','ls','ryhl','yqwd'))

3. oracle 转整型

oracle中有一个月份处理函数add_months(date,int) 返回一个date型add_months(to_date(MONTH,'yyyymm'),INTERVAL)如果需要返回MONTH一致的格式to_char(add_months(to_date(MONTH,'yyyymm'),INTERVAL),'yyyymm')

4. oracle数据转换函数

1.取整(大)

  select ceil(-1.001) value from dual

  2.取整(小)

  select floor(-1.001) value from dual

  3.取整(截取)

  select trunc(-1.002) value from dual

4.取整(舍入)

select round(-1.001) value from dual

5. oracle 转换

drop table ABC; create table ABC(id number,name varchar2(50),kcName varchar2(50),score number); insert into ABC valu

drop table ABC;

create table ABC(id number,name varchar2(50),kcName varchar2(50),score number);

insert into ABC values(1,'张三','语文',88);

insert into ABC values(2,'张三','数学',68);

insert into ABC values(3,'张三','英语',78);

insert into ABC values(4,'李四','英语',78);

insert into ABC values(5,'李四','语文',88);

insert into ABC values(6,'李四','数学',79);

insert into ABC values(7,'王五','英语',74);

insert into ABC values(8,'王五','语文',58);

insert into ABC values(9,'王五','数学',98);

select * from abc;

select abc.Name,sum(decode(kcName,'语文',SCORE,null)) 语文,

sum(decode(kcName,'数学',SCORE,null)) 数学,

sum(decode(kcName,'英语',SCORE,null)) 英语

from abc group by abc.name;

结果:

NAME 语文 数学 英语

1 王五 158 198 174

2 李四 188 179 178

3 张三 188 168 178

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