Hive tables meta details needed

Question

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?

Marguritemargy

Answer 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 .

Deneb

Answer 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"

Carboxylate

Thanks Bala. BUt actually I want to extract the data in this order dbname,table name, column name. – Marguritemargy

Hari,you know tablename.database name and column names can be get from above command,if you want only those details ,just grep them . – Carboxylate