22问答网
所有问题
当前搜索:
with tmp as用法
with
as 用法
答:
with
as 用法
–针对一个别名 with
tmp
as (select * from tb_name)–针对多个别名 with tmp as (select * from tb_name),tmp2 as (select * from tb_name2),tmp3 as (select * from tb_name3),…–相当于建了个e临时表 with e as (select * from scott.emp e where e.empno...
sql 从日期中提取年份,按年份求和
答:
思路:先准备好整个时间段的月份,然后关联统计就行了;--mssql:
WITH
TMP
AS
(SELECT '1994-1-1' AS BEGAN_DATE, '1994-12-1' AS END_DATE, 100.00 AS JS, 1200.00 AS ZJS UNION ALL SELECT '1995-1-1', '1995-5-1', 100.00, 500.00 UNION ALL SELECT '1995-6-1'...
【oracle】查询表中每天的余额,如果当天没有就返回之前最近的一天的余...
答:
with
v_
tmp
as
-- 建一个临时视图 (select '2012.11.11' date1, 111.2 balance from dual union all select '2012.11.12' date1, 91.2 balance from dual order by date1)select to_char(b.date1, 'yyyy.mm.dd'), NVL(a.balance, b.balance)from v_tmp a,(select to_date('2...
SQL更新最小值所在行的数据
答:
with
tmp
as
(select pn,price,date ,row_number() over (partition by price order by date asc) bz from (select pn,price,min(date) date from tbname group by pn,price) a)update a set a.check=bz from tbname a join tmp b on a.PN=b.PN and a.price=b.price and a.date...
oracle中如何用正则表达式按照顺序替换某个固定的表达式?
答:
with
tmp
as
(select 'ZB0001+ZB0202-ZB0103*ZB2004/ZB0095' as str from dual)select listagg(str) within group(order by 1) from (select regexp_replace(regexp_substr(str, 'ZB[0-9]{4}.{0,1}', 1, level), ...
sql查询结果怎么按指定列数依次排列?
答:
with
tmp
as
(select row_number() over(order by FENTRYID) rn,FENTRYID from 表 )select t1.FENTRYID as FENTRYID1,t2.FENTRYID as FENTRYID2,t3.FENTRYID as FENTRYID3 from tmp t1 left join tmp t2 on t2.rn=t1.rn+1 left join tmp t3 on t3.rn=t1.rn+2 where t1....
删除字段里小括号括起来的内容.sql语句怎么写
答:
with
t_
tmp
as
( select 'abcdefg(123456)xyz' as f1) select f1,SUBSTRING(f1,1,CHARINDEX('(',f1)-1) + SUBSTRING(f1,len(f1)-CHARINDEX(')',reverse(f1))+2,100) as f2 from t_tmp 对应的UPDATE为下,顺便加了过滤条件避免不是此类数据也被处理了 update 表名 set 字段名 = ...
oracle 中 如何将年周(例如1502)转换为年月日(20150105)?
答:
with
tmp
as
(select '1502' as a from dual union all select '1503' as a from dual union all select '1402' as a from dual union all select '0701' as a from dual)select a, to_char(years - w + (weeks - 1) * 7,'yyyymmdd') as begin_week from...
db2分页技术优化问题:
答:
1、 如果一定要使用fetch first 20 rows only 的方式,可以使用
WITH
AS 方式实现:--- WITH
TMP
AS
(select * from (select *,rownumber() over(order by id asc )
as
row_id from table_name ) where row_id > (pagenumber-1)*pagesize )SELECT TMP.* FROM TMP WHERE fetch ...
如何利用sql查询一段时间内每天、没人的销售总额?我要详细的sql语句...
答:
总SQL应该为: select a.*,nvl(zs,0) zs from (select time.time,name.name from time,name)a,(select time,name sum(sale)
as
zs from test group by time,name ) b where a.time=b.time(+) and a.name=b.name(+) order by a.time ...
1
2
3
4
涓嬩竴椤
其他人还搜
with temp as用法
数据库with as用法
with temp as
with as 用法
that和which的用法区别
with as区别和用法
as with的用法总结
start with
with用法