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Equijoin
A type of join where there is an equality condition on the columns being compared.
Non-Equijoin
A join that compares columns using a comparator other than equality, such as greater than or less than.
Self Join
A join in which a table is joined to itself to combine rows based on a related column.
Foreign Key
A key in one table that links to the primary key of another table.
Primary Key
A unique identifier for a record in a table.
Aliases
Temporary names given to tables or columns to avoid ambiguity in queries.
Cross Join
A type of join that returns the Cartesian product of two tables, resulting in all possible combinations of rows.
On Clause
A clause used in SQL joins to specify the condition for joining tables.