Question

The ____ is: Give me the result of the inner join as well as all the rows of tableB that have not been included in the result of the inner join (even if there is no common field).

Answer 1

A LEFT JOIN or LEFT OUTER JOIN in SQL includes the result of an inner join as well as all the rows from the left table (TableB) that do not have a corresponding match in the right table (TableA).

Step-by-step explanation:

The term you are seeking to define is a LEFT JOIN or LEFT OUTER JOIN in SQL. When you perform a LEFT JOIN between two tables, say TableA and TableB, the result set includes all the records that match between the two tables – similar to an inner join – as well as all the records from TableB that do not have a corresponding match in TableA.

This type of join is particularly useful when you're interested in retaining all the rows from one table (TableB in your case) regardless of whether there's a match in the other table (TableA). This is used to ensure that all records from the 'left' table (TableB) are returned and to see how they line up with records in the 'right' table (TableA).