FROM table1 JOIN table2 ON conditional_expression. When the join-predicate is satisfied, the column values for each matched pair of rows of A and B are combined into a result row.Īn INNER JOIN is the most common and default type of join. The query compares each row of table1 with each row of table2 to find all pairs of rows which satisfy the join-predicate. INNER JOIN creates a new result table by combining column values of two tables (table1 and table2) based upon the join-predicate. The above query will produce the following result − Sqlite> SELECT EMP_ID, NAME, DEPT FROM COMPANY CROSS JOIN DEPARTMENT īased on the above tables, you can write a CROSS JOIN as follows − Because CROSS JOINs have the potential to generate extremely large tables, care must be taken to only use them when appropriate. If the input tables have x and y row, respectively, the resulting table will have x*y row. INSERT INTO DEPARTMENT (ID, DEPT, EMP_ID)įinally, we have the following list of records available in DEPARTMENT table −ĬROSS JOIN matches every row of the first table with every row of the second table. Here is the list of INSERT statements to populate DEPARTMENT table − So just let's assume the list of records available in COMPANY table −Īnother table is DEPARTMENT with the following definition − We already have seen INSERT statements to populate COMPANY table. A JOIN is a means for combining fields from two tables by using values common to each.īefore we proceed, let's consider two tables COMPANY and DEPARTMENT. SQLite Joins clause is used to combine records from two or more tables in a database.
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