hive inner join

Hive inner join is a type of join operation in Hive query language (HQL) that combines rows from two or more tables based on a matching condition. It selects only the records that have matching values in both tables being joined.

The syntax for performing an inner join in Hive is as follows:

SELECT column1, column2, ...
FROM table1
INNER JOIN table2
ON table1.column_name = table2.column_name;

In this syntax, `table1` and `table2` are the names of the tables to be joined, and `column_name` is the common column between the tables on which the join is performed. The result of the inner join will contain columns specified in the `SELECT` clause from both tables where the join condition is met.

It's important to note that Hive supports different types of joins such as inner join, left join, right join, and full outer join, allowing you to choose the appropriate join type based on your requirements.