NoViableAltException([email protected][2389:1: columnNameTypeOrConstraint : ( ( tableConstraint ) | ( columnNameT

Source of problem ：

         The recent use hive Data warehouse tools , The installation and use are normal , start-up hive It's also very successful , Also by command show databases; Inquire about hive All database information , But when executing create table （ Whether it is an internal table or an external partition table ） I've been reporting mistakes all the time , Many online tutorials are useless , Finally, find the reason by yourself , I wish to record .

resolvent ：

                 First, the first reason , The most likely mistake is punctuation . The table creation statement I input locally is shown in the following figure ：

         Look at my error log output , Here's the picture ：

         You can see that the bottom line indicates that the error location is on the 3 Xing di 0 Column , Go back to the command line and find that the position is a single quotation mark , After consulting a large number of materials but still useless, I came to a great understanding ,sql Statements should use emphasis marks ` , Not single quotes ' . You can see the comparison of the following two screenshots （ The first is a single quotation mark , The result is wrong ; The second is the emphasis , Results successful ）.

        The second error is caused by improper variable names , For example, when your variable name is time when , The system still reports 3 initial error , The same goes for the prompt ,  At this time, you only need to avoid the conflict between your variable name and the system keyword .