如何在RODBC中的SQLquery中使用sum函数

时间:2015-12-31 14:10:53

标签: sql r hadoop impala rodbc

我有一个脚本在Hadoop Impala中作为SQL查询工作,但是当我尝试使用RODBC包在R中运行时,如果" sum"功能如下:

install.packages("RODBC")
library(RODBC)
conn <- odbcConnect("ODBC Impala")

example1 <- sqlQuery(conn, "
select
    column1 as Name, column2 as Date, sum(column3) as Balance
from 
    database1.table1
where 
    column2="20151130"")

但是,当我排除:

sum(column3) as Balance

脚本运行得很好。有人可以帮忙吗?

1 个答案:

答案 0 :(得分:3)

据推测,您需要group by

select column1 as Name, column2 as Date, sum(column3) as Balance
from  database1.table1
where column2 = '20151130'
group by column1, column2;