Question

我已提到先前的帖子将一列分成两列。看起来我所指的示例是sql，与Hive相比可能有所不同。如何将orig_data转换为结果数据？

            orig_data

name        location    code
Andrew M    NY          145-ABG
Paul C      NY          1787-ATG
Kate M      NY          3874-WV

            results

name        location    ID      per
Andrew M    NY          145     ABG
Paul C      NY          1787    ATG
Kate M      NY          3874    WV

select 
  name, location,
  left(code, charindex('-',code) as id, --not working
  right(code, charindex('-',code) as per, --not working
from 
  orig_table;

Answer 1

使用varFilepath+varFilename+varDate+”.csv” varDate = (dt_wstr,4)(datepart("yy",getdate()) ) + (dt_wstr,2)(datepart("mm",getdate())) + (dt_wstr,2)(datepart("dd",getdate()) )+ (dt_wstr,2(datepart("hh",getdate())) + (dt_wstr,2)(datepart("n",getdate()) )+(dt_wstr,2)(datepart("ss",getdate()))和substr

instr

Answer 2

这是一个例子：

INSERT INTO TABLE bdp.optrans_tbl
SELECT
CONCTNS.splitted_cnctns[0] AS con1,
CONCTNS.splitted_cnctns[1] AS con2,
CONCTNS.splitted_cnctns[2] AS con3
FROM
(SELECT
split(connections,',') AS splitted_cnctns FROM bdp.transact_tbl)CONCTNS;

如需了解详情，请参阅http://bigdataprogrammers.com/split-one-column-into-multiple-columns-in-hive/

蜂巢 - 将细胞分成多个柱

2 个答案: