Hive SQL：如何将单个字段拆分为具有定义长度的多个列？

Question

For example: string = 'ABCDEFGHIJ'

Now, need to split the string to multiple columns with length of 4

Desired Output:

Col1   Col2   Col3
'ABCD' 'EFGH' 'IJ'

Answer 1

You can use substr() :

select substr(col, 1, 4) as col1, substr(col, 5, 4) as col2, substr(col, 9, 4) as col3