Is there a function in Hiveql that is equivalent to Right() or Left() fuction form TSQL? For example, RIGHT(col1,10) to get the first 10 characters from col1.
thank you
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问题:
回答1:
There is no right or left function but you can implement same with substr like
left (column, nchar) = substr(column, 0, nchar) right (column, nchar) = substr (column, -nchar) 回答2:
This works for me for right function: substr (col, -nchar) = right(col, nchar).
hive> select substr('adbcefghij',-4); ghij Time taken: 40.839 seconds, Fetched: 1 row(s) Hope this helps.
回答3:
right(column, nchar) = substr(column, (length(column)-nchar+1), nchar)