Anonymous Asked in Cars &Transportation · 2 weeks ago

How do I link data from one table to another in SQL?

To put it simply, the “Join” makes relational database systems “relational”. Joins allow you to link data from two or more tables together into a single query result–from one single SELECT statement. A “Join” can be recognized in a SQL SELECT statement if it has more than one table after the FROM keyword.


SQL JOIN. A JOIN clause is used to combine rows from two or more tables, based on a related column between them. 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.

To link to the data, open the destination database. On the External Data tab, in the Import & Link group, click ODBC Database. Click Link to the data source by creating a linked table, and then click OK. In the Select Data Source dialog box, click the .

Double-click the two tables that contain the data you want to include in your query and also the junction table that links them, and then click Close. All three tables appear in the query design workspace, joined on the appropriate fields. Double-click each of the fields that you want to use in your query results.

To join tables, you use the cross join, inner join, left join, or right join clause. The join clause is used in the SELECT statement appeared after the FROM clause. Note that MySQL hasn't supported the FULL OUTER JOIN yet.1Inner join.2Left join.3Right join.4Cross join.

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