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If you are joining two tables and want the result set to include unmatched rows from only one table, use a LEFT OUTER JOIN clause or a RIGHT OUTER JOIN clause. The matching is based on the join condition.
- Db2 12 - Introduction - Ways to join data from more than one table - IBM
Inner and outer joins. Db2 supports inner joins, outer...
- Db2 for i SQL: Joining data from more than one table - IBM
Several different types of joins are supported by Db2 for i:...
- Db2 12 - Introduction - Ways to join data from more than one table - IBM
The LEFT JOIN clause selects data starting from the left table (T1). It compares each row in the left table with every row in the right table. If two rows match, the LEFT JOIN combines columns of these two rows into a row and includes this row in the final result set.
This tutorial shows you how to use Db2 joins including inner join, left outer join, right outer join, and full outer join to combine rows from two tables.
Inner and outer joins. Db2 supports inner joins, outer joins, which include left outer joins, right outer joins, and full outer joins, and cross joins. Inner join. An inner join result is the cross product of the tables, but it keeps only the rows where the join condition is true.
25 Αυγ 2020 · DB2 - SQL LEFT OUTER JOIN. The LEFT JOIN keyword returns all records from the left table (table1), and the matched records from the right table (table2). The result is NULL from the right side, if there is no match.
Several different types of joins are supported by Db2 for i: inner join, left outer join, right outer join, left exception join, right exception join, and cross join.
1 Οκτ 2017 · select a.a1, a.a2, b.b1, b.b2, c.c1, c.c2 from table1 a left outer join table2 b on a.a1 = b.b1 left outer join table3 c on a.a1 = c.c1 where a.c3 = 'y' and (b.b1 is null or c.b1 is null)
