Select command for cloudera impala to convert hexadecimal to ip address

Question

I need select statement format for cloudera impala to convert hexadecimal to ip address.

Suppose a hexadecimal number is given (as shown below). How to convert it into impala with select statement like:-

A.59.FC.6

Answer 1

您可以在Hive中使用split分割字符串，conv从基数16转换为基数10;不幸的是，尽管Impala确实支持conv，但似乎Impala内置了split UDF，所以如果您遇到Impala，您可能需要编写自己的:(

Hive代码：

 select concat(
           cast(conv(split(ipcolumn,'[.]')[0],16,10) as string), '.',
           cast(conv(split(ipcolumn,'[.]')[1],16,10) as string), '.',
           cast(conv(split(ipcolumn,'[.]')[2],16,10) as string), '.',
           cast(conv(split(ipcolumn,'[.]')[3],16,10) as string)
          )      
 from mytable;