怎样才能修改此select语句

我怎么能修改下面工会SELECT语句中的任意连接select语句的方法，其从表1和表2总结的价格，我想还有，怎样才能修改此select语句

select CODE, SUM(PRICE) as PRICE 
from (SELECT CODE, SUM(PRICE) as PRICE 
     FROM TABLE1 
     where ID='IBK' and cast(TMSTAMP_UPDATE as DATE)='2014-03-31' 
     GROUP BY CODE 
     union 
     SELECT CODE, SUM(PRICE) as PRICE 
     FROM TABLE2 
     where ID='IBK' and cast(TMSTAMP_UPDATE as DATE)='2014-03-31' 
     GROUP BY CODE) GROUP BY CODE;

谢谢提前

来源

2014-03-31 Apache

我不明白你的问题在所有。你可以尝试改写它吗？ –

你能否解释一下为什么一个连接会成为一个问题，还有一个商业目的是从一个连接改变它 – skv

尝试像这样

select CODE, SUM(PRICE) as PRICE 
from (SELECT CODE, SUM(PRICE) as PRICE 
     FROM TABLE1 t1 INNER JOIN TABLE2 t2 ON 
     t1.ID=t2.ID and 
     t1. cast(TMSTAMP_UPDATE as DATE)='2014-03-31' 
     = t2.cast(TMSTAMP_UPDATE as DATE)='2014-03-31' and 
     t1.ID='IBK' and t1.cast(TMSTAMP_UPDATE as DATE)='2014-03-31' 
GROUP BY CODE) GROUP BY CODE;

来源

2014-03-31 04:02:13 Sathish

怎样才能修改此select语句

回答

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