U+27D6 "⟖" Right Outer Join Unicode Character

U+27D6 "⟖" Right Outer Join is a mathematical symbol used primarily in relational algebra and database theory to represent the right outer join operation. This operation combines two relations or tables by returning all rows from the right table and the matching rows from the left table, with null values placed in the left table's columns where no match is found. The symbol visually resembles a rightward-pointing semicircle or a partial join, distinguishing it from related operators like the left outer join (⟕) and full outer join (⟗). Its inclusion in Unicode allows for precise notation in technical documentation, academic papers, and software development contexts where set theoretic or database join operations are described.