U+27D6 "⟖" Right Outer Join Unicode Character
Unicode Version 17.0
⟖
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.
General Properties
| Code Point | U+27D6 |
| Version Added | 3.2 |
| Name | Right Outer Join |
| Block | Miscellaneous Mathematical Symbols-A |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
| Mirrored Character | "⟕" U+27D5 Left Outer Join |
Encodings
| HTML Decimal Encoding | ⟖ |
| HTML Hex Encoding | ⟖ |
| UTF-8 Encoding | 0xE2 0x9F 0x96 |
| UTF-16 Encoding | 0x27D6 |
| UTF-32 Encoding | 0x000027D6 |
| C/C++/Java Escape | \u27d6 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Pattern Syntax | Yes |
| Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |