问题
select * from information_schema.columns;
In MySQL gives me the dbname, table name and column details of a MySQL db.
Can I get the same details in hive from any tables?
回答1:
If you have configured your metastore in mysql .Then there are tables in the metastore database named DBS, COLUMNS_V2 which will have metadata of all hive DBs and tables .
回答2:
Describe will meet your requirement.
hive -e "desc formatted tablename"
On above output you can use grep like below
hive -e "desc formatted tablename" |grep -i database
only column names can be get with below command.
hive -e "show columns from tablename"
来源：https://stackoverflow.com/questions/19633000/hive-tables-meta-details-needed