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"RIGHT OUTER JOIN ... ON" - Writing Queries with Right Outer Joins in SQL Server
How To Write a Query with a Right Outer Join in SQL Server?
✍: FYIcenter.com
If you want to query from two tables with a right outer join, you can use the RIGHT OUTER JOIN ... ON clause in the FROM clause. The following query returns output with a right outer join from two tables: fyi_links and fyi_rates. The join condition is that the id in the fyi_links table equals to the id in the fyi_rates table:
SELECT l.id, l.url, r.comment FROM fyi_links l RIGHT OUTER JOIN fyi_rates r ON l.id = r.id GO id url comment 101 dev.fyicenter.com The best 102 dba.fyicenter.com Well done 103 sqa.fyicenter.com Thumbs up NULL NULL Number 1 NULL NULL Not bad NULL NULL Good job NULL NULL Nice tool
Note that a right outer join may return extra rows from the second (right) table that do not satisfy the join condition. In those extra rows, columns from the first (left) table will be given null values.
The extra rows returned from the right outer join in this example represents rates that have no links in the above example.
⇒ "FULL OUTER JOIN ... ON" - Writing Queries with Full Outer Joins in SQL Server
⇐ "LEFT OUTER JOIN ... ON" - Writing Queries with Left Outer Joins in SQL Server
⇑ Using SELECT Statements with Joins and Subqueries in SQL Server
2016-10-30, 2119🔥, 0💬
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