how many tables can sql server join
SQL Joins SQL JOIN. A JOIN clause is used to combine rows from two or more tables, based on a related column between them. Let's look at a selection from the Orders table: Then, look at a selection from the Customers table: Notice that the CustomerID column in the Orders table refers to the CustomerID in the Customers table. The relationship between the two tables above is the CustomerID column. Then, we can create the following SQL statement (that contains an INNER JOIN), that selects records that have matching values in both tables: Example SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate