It is similar to CASE, but only allows a single condition. You can use it to add conditional logic to SQL statements.Syntax IFF( <condition> , <expr1> , <expr2> ) Arguments condition The condition is an expression that should evaluate to a BOOLEAN value (TRUE, FALSE, or NULL). If ...
所以首先需要解决Anaconda2(Python2)和Anaconda3(Python3)的共存。