To query data from both tracks and albums tables, you use the following statement: SELECT And in the albums table, the AlbumId is the primary key. In the tracks table, the AlbumId column is a foreign key. The tracks table links to the albums table via AlbumId column. Let’s take a look at the tracks and albums tables in the sample database. The following diagram illustrates the INNER JOIN clause: SQLite INNER JOIN examples Only the rows in the A table: (a1,1), (a3,3) have the corresponding rows in the B table (b1,1), (b2,3) are included in the result set. This logic is applied if you join more than 2 tables. In other words, the INNER JOIN clause returns rows from the A table that has the corresponding row in B table. If the value of the f column in the A table equals the value of the f column in the B table, it combines data from a1, a2, b1, b2, columns and includes this row in the result set. INNER JOIN B on B.f = A.f Code language: SQL (Structured Query Language) ( sql )įor each row in the A table, the INNER JOIN clause compares the value of the f column with the value of the f column in the B table. The following illustrates the syntax of the inner join clause: SELECT a1, a2, b1, b2 The A table links to the B table using a foreign key column named f.
The INNER JOIN clause combines columns from correlated tables.Ī has a1, a2, and f columns. To query data from multiple tables, you use INNER JOIN clause. A table is associated with another table using foreign keys. In relational databases, data is often distributed in many related tables.
Sqlite inner join on cast as integer how to#
Summary: this tutorial shows you how to use SQLite inner join clause to query data from multiple tables.
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