Enterjoin

Enterjoin is a term that describes a specific type of database join operation. It is often used in the context of relational databases and SQL. When you perform an enterjoin, you combine rows from two or more tables based on a related column between them. The key characteristic of an enterjoin is that it returns all rows from the "left" table and the matched rows from the "right" table. If there is no match in the right table for a row in the left table, the columns from the right table will contain NULL values. This is in contrast to an inner join, which would only return rows where a match exists in both tables. The enterjoin effectively preserves all records from the first table, irrespective of whether they have corresponding entries in the second table. This makes it useful when you need to see all data from one primary source and supplement it with related information where available. The syntax for performing an enterjoin typically involves the keywords "LEFT JOIN" or "LEFT OUTER JOIN" in SQL.