问题
What is the syntax for writing a while loop in Impala? Is it even possible to write a loop? I cant seem to declare variables and it doesn't recognize "while" as a keyword.
回答1:
Impala doesn't support WHILE loops in it's syntax.
References:
Impala Reserved Words
来源：https://stackoverflow.com/questions/49523380/write-a-while-loop-in-impala-sql