/* -------------------- List All Unicode Code Points ------------------- Created By: Solomon Rutzky / Sql Quantum Leap ( https://SqlQuantumLeap.com/ ) Created On: 2019-03-25 Updated On: 2019-04-09 Updated On: 2020-01-13 ~ Add UTF-8 support for all SQL Server versions (does not require "_UTF8" collation!!) ~ Clarify that HTML escape sequences are also used in XML ~ Add more app languages: F#, JavaScript, and Julia ~ Correct "\x" to be "\u" for C#, F#, Java, etc app languages ~ Split "\u" and "\u\u" into 2 columns to be more accurate for app languages ~ Add "\U" column to be more accurate for app languages ~ Fix "Location" URL in header comment Location: https://pastebin.com/0JvkHu2D Related blog post: https://sqlquantumleap.com/2019/03/25/ssms-tip-3-easily-access-research-all-unicode-characters-yes-including-emojis-%f0%9f%98%b8/ Escape Sequences: For more details and/or additional languages, please see the following post: https://sqlquantumleap.com/2019/06/26/unicode-escape-sequences-across-various-languages-and-platforms-including-supplementary-characters/ ---------------------------------------------------------------------- */ USE [tempdb]; IF (OBJECT_ID(N'dbo.ListAllUnicodeCodePoints') IS NULL) BEGIN RAISERROR(N'Creating placeholder function...', 10, 1) WITH NOWAIT; EXEC(N'CREATE FUNCTION dbo.ListAllUnicodeCodePoints() RETURNS TABLE AS RETURN SELECT 1 AS [a];'); END; ------------------------------------------------------------------------------- --===========================================================================-- ------------------------------------------------------------------------------- GO ALTER FUNCTION dbo.ListAllUnicodeCodePoints(@EncodeSurrogateCodePointsInUTF8 BIT = 0) RETURNS TABLE AS RETURN WITH nums AS ( SELECT TOP (1114111) (ROW_NUMBER() OVER (ORDER BY @@MICROSOFTVERSION) - 1) AS [num] FROM [master].[sys].[all_columns] ac1 CROSS JOIN [master].[sys].[all_columns] ac2 ), chars AS ( SELECT CONVERT(INT, n.[num]) AS [num], -- pass-through RIGHT(CONVERT(CHAR(6), CONVERT(BINARY(3), n.[num]), 2), CASE WHEN n.[num] > 65535 THEN 5 ELSE 4 END) AS [CodePointHex], CONVERT(INT, CASE WHEN n.[num] > 65535 THEN 55232 + (n.[num] / 1024) END) AS [HighSurrogateINT], CONVERT(INT, CASE WHEN n.[num] > 65535 THEN 56320 + (n.[num] % 1024) END) AS [LowSurrogateINT] FROM nums n WHERE n.[num] BETWEEN 0x000000 AND 0x014700 -- filter out 925,455 OR n.[num] BETWEEN 0x016800 AND 0x030000 -- unmapped code OR n.[num] BETWEEN 0x0E0001 AND 0x0E01EF -- points ) SELECT 'U+' + c.[CodePointHex] AS [CodePoint], c.[num] AS [CdPntINT], '0x' + c.[CodePointHex] AS [CdPntBIN], CASE WHEN c.[num] > 65535 THEN NCHAR(c.[HighSurrogateINT]) + NCHAR(c.[LowSurrogateINT]) ELSE NCHAR(c.[num]) END AS [Char], CASE WHEN c.[num] > 65535 THEN CONVERT(CHAR(10), CONVERT(BINARY(4), NCHAR(c.[HighSurrogateINT]) + NCHAR(c.[LowSurrogateINT])), 1) ELSE CONVERT(CHAR(6), CONVERT(BINARY(2), NCHAR(c.[num])), 1) END AS [UTF-16LE ], '0x' + CASE -- https://rosettacode.org/wiki/UTF-8_encode_and_decode#VBA WHEN c.[num] < 128 THEN CONVERT(CHAR(4), CONVERT(BINARY(1), c.[num]), 2) WHEN c.[num] BETWEEN 128 AND 2047 THEN CONVERT(CHAR(2), CONVERT(BINARY(1), ((c.[num] / 64) + 192)), 2) + CONVERT(CHAR(2), CONVERT(BINARY(1), ((c.[num] % 64) + 128)), 2) WHEN (@EncodeSurrogateCodePointsInUTF8 = 0) AND (c.[num] BETWEEN 55296 AND 57343) THEN 'EFBFBD' -- Replacement (U+FFFD) Surrogate Code Points are invalid in UTF-8 WHEN c.[num] BETWEEN 2048 AND 65535 THEN CONVERT(CHAR(2), CONVERT(BINARY(1), (((c.[num] / 64) / 64) + 224)), 2) + CONVERT(CHAR(2), CONVERT(BINARY(1), (((c.[num] / 64) % 64) + 128)), 2) + CONVERT(CHAR(2), CONVERT(BINARY(1), ((c.[num] % 64) + 128)), 2) WHEN c.[num] BETWEEN 65536 AND 1114111 THEN CONVERT(CHAR(2), CONVERT(BINARY(1), ((((c.[num] / 64) / 64) / 64) + 240)), 2) + CONVERT(CHAR(2), CONVERT(BINARY(1), ((((c.[num] / 64) / 64) % 64) + 128)), 2) + CONVERT(CHAR(2), CONVERT(BINARY(1), (((c.[num] / 64) % 64) + 128)), 2) + CONVERT(CHAR(2), CONVERT(BINARY(1), ((c.[num] % 64) + 128)), 2) ELSE CONVERT(VARCHAR(15), NULL) END AS [UTF-8 ], c.[HighSurrogateINT] AS [HighSrgtINT], c.[LowSurrogateINT] AS [LowSrgtINT], CONVERT(BINARY(2), c.[HighSurrogateINT]) AS [HighSrgtBIN], CONVERT(BINARY(2), c.[LowSurrogateINT]) AS [LowSrgtBIN], 'NCHAR(' + CASE WHEN c.[num] > 65535 THEN CONVERT(CHAR(6), CONVERT(BINARY(2), c.[HighSurrogateINT]), 1) + ') + NCHAR(' + CONVERT(CHAR(6), CONVERT(BINARY(2), c.[LowSurrogateINT]), 1) ELSE CONVERT(CHAR(6), CONVERT(BINARY(2), c.[num]), 1) END + ')' AS [T-SQL ], '&#x' + c.[CodePointHex] + ';' AS [HTML/XML ], CASE WHEN c.[num] < 65536 THEN '\u' + CONVERT(CHAR(4), CONVERT(BINARY(2), c.[num]), 2) ELSE CONVERT(VARCHAR(10), NULL) END AS [C#/F#/C++/Java[Script]]/Julia/?], CASE WHEN c.[num] > 65535 THEN '\u' + CONVERT(CHAR(4), CONVERT(BINARY(2), c.[HighSurrogateINT]), 2) + '\u' + CONVERT(CHAR(4), CONVERT(BINARY(2), c.[LowSurrogateINT]), 2) ELSE CONVERT(VARCHAR(15), NULL) END AS [C#/F#/Java[Script]]/?], '\U' + CONVERT(CHAR(8), CONVERT(BINARY(4), c.[num]), 2) AS [C#/F#/C/C++/Julia/?] FROM chars c; GO ------------------------------------------------------------------------------- --===========================================================================-- ------------------------------------------------------------------------------- -------- TEST --------- -- List all 188,657 code points: SELECT cp.* FROM dbo.ListAllUnicodeCodePoints(DEFAULT) cp; -- DEFAULT is same as 0 -- List surrogate code points to show difference in UTF-8 encoding options: -- (Surrogate code points are invalid in UTF-8 and ideally should not be encoded) SELECT enc.[CodePoint], enc.[CdPntINT], enc.[CdPntBIN], enc.[Char], no_enc.[UTF-8 ] AS [UTF-8 conforming], enc.[UTF-8 ] AS [UTF-8 encoded] FROM dbo.ListAllUnicodeCodePoints(0) no_enc -- 0 is same as DEFAULT INNER JOIN dbo.ListAllUnicodeCodePoints(1) enc ON enc.[CdPntINT] = no_enc.[CdPntINT] WHERE no_enc.[CdPntINT] BETWEEN 0xD800 AND 0xDFFF; -- List some emoji: SELECT cp.* FROM dbo.ListAllUnicodeCodePoints(0) cp WHERE cp.[CdPntINT] BETWEEN 0x1F000 AND 0x1F9FF; -- List the Tibetan characters, sorted naturally for that language: SELECT cp.* FROM dbo.ListAllUnicodeCodePoints(0) cp WHERE cp.[CdPntINT] BETWEEN 0x0F00 AND 0x0FFF -- Tibetan ORDER BY cp.[Char] COLLATE Nepali_100_CS_AS; -- List characters that are considered the same as "E" -- (when using Latin1_General_100_CI_AI): SELECT cp.* FROM dbo.ListAllUnicodeCodePoints(0) cp WHERE cp.[Char] = N'E' COLLATE Latin1_General_100_CI_AI ORDER BY cp.[CdPntINT]; -- 94 rows!! -- List characters that have a numeric value between 0 and 10,000 -- (for pre-SQL Server 2017, use Latin1_General_100_CI_AI): SELECT cp.* FROM dbo.ListAllUnicodeCodePoints(0) cp WHERE cp.[Char] LIKE N'%[0-' + NCHAR(0x2182) + N']%' COLLATE Japanese_XJIS_140_CI_AI--Latin1_General_100_CI_AI ORDER BY cp.[Char] COLLATE Japanese_XJIS_140_CI_AI--Latin1_General_100_CI_AI -- 752 rows!! (for Japanese_XJIS_140_CI_AI) -- 550 rows!! (for Latin1_General_100_CI_AI) -- Can be used in SSMS a as a keyboard Query Shortcut (only a single line is allowed): SELECT cp.* FROM dbo.ListAllUnicodeCodePoints(0) cp; RETURN; -- See blog post (linked in the header comment bloc) for details. -- DROP FUNCTION dbo.ListAllUnicodeCodePoints;