如何将 SQL 查询中的返回值从西里尔文转换为拉丁文

Question

I have a table where I store cars registration numbers, but some registration numbers are in Cyrillic. If I search registration numbers "XX0000XX" where 'X' is in Latin and in table one or more 'X' is in Cyrillic finds nothing. Is there a way to write this query, for example:

Select from cars where reg_num = 'XX0000XX'

in such a way that it can also find the records that contain both Cyrillic and Latin alphabet? In where clause string is 100% Latin alphabet

Answer 1

If you use MS SQL. You can use the transliteration function

    GO
/****** Object:  UserDefinedFunction [dbo].[TransLit]    Script Date: 05.04.2017 10:25:38 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:  <Author,,Name>
-- Create date: <Create Date, ,>
-- Description: <Description, ,>
-- =============================================
ALTER FUNCTION [dbo].[TransLit]
(
 @@String VarChar(max)
)
RETURNS VarChar(max)
AS
BEGIN
DECLARE @TransTable TABLE(
   Rus Char 
  ,Lat VarChar(2)
 )INSERT @TransTable SELECT 'А','A'
  UNION ALL SELECT 'Б','B'
  UNION ALL SELECT 'В','V'
  UNION ALL SELECT 'Г','G'
  UNION ALL SELECT 'Д','D'
  UNION ALL SELECT 'Е','E'
  UNION ALL SELECT 'Ё','YO'
  UNION ALL SELECT 'Ж','ZH'
  UNION ALL SELECT 'З','Z'
  UNION ALL SELECT 'И','I'
  UNION ALL SELECT 'Й','Y'
  UNION ALL SELECT 'К','K'
  UNION ALL SELECT 'Л','L'
  UNION ALL SELECT 'М','M'
  UNION ALL SELECT 'Н','N'
  UNION ALL SELECT 'О','O'
  UNION ALL SELECT 'П','P'
  UNION ALL SELECT 'Р','R'
  UNION ALL SELECT 'С','S'
  UNION ALL SELECT 'Т','T'
  UNION ALL SELECT 'У','U'
  UNION ALL SELECT 'Ф','F'
  UNION ALL SELECT 'Х','H'
  UNION ALL SELECT 'Ц','C'
  UNION ALL SELECT 'Ч','CH'
  UNION ALL SELECT 'Ш','SH'
  UNION ALL SELECT 'Щ','SH'
  UNION ALL SELECT 'Ъ',''''
  UNION ALL SELECT 'Ы','Y'
  UNION ALL SELECT 'Ь',''''
  UNION ALL SELECT 'Э','E'
  UNION ALL SELECT 'Ю','YU'
  UNION ALL SELECT 'Я','YA'

 DECLARE @Result VarChar(max)
 SET @Result = @@String
 SELECT @Result = Replace(@Result,Upper(Rus) COLLATE Cyrillic_General_CS_AS,Upper(Lat)) FROM @TransTable WHERE @@String LIKE '%' + Rus + '%'
 SELECT @Result = Replace(@Result,Lower(Rus) COLLATE Cyrillic_General_CI_AS,Lower(Lat)) FROM @TransTable WHERE @@String LIKE '%' + Rus + '%'
 RETURN @Result
END

Then your script

Select * from cars where TransLit(reg_num) = 'XX0000XX'

In 'XX0000XX' use latin.

Answer 2

Here is s T-SQL solution of this problem. Main idea is that you have to replace all russian С, Х, Н and so on with latin C, X, H. Here are all similar char pairs which were used it this function. You can write your own function that replaces first char of each pair with second.

Ѐ -> E
Ё -> E
Ѕ -> S
І -> I
Ї -> I
Ј -> J
Њ -> H
Ќ -> K
А -> A
В -> B
Е -> E
К -> K
М -> M
Н -> H
О -> O
Р -> P
С -> C
Т -> T
У -> Y
Х -> X
Ь -> b
а -> a
е -> e
к -> k
м -> m
о -> o
р -> p
с -> c
т -> t
у -> y
х -> x
ь -> b
ѐ -> e
ё -> e
ѕ -> s
і -> i
ї -> i
ј -> j
ћ -> h
ќ -> k
ѡ -> w
Ҏ -> P
ҏ -> p
Қ -> K
қ -> k
Ҝ -> K
ҝ -> k
Ҟ -> K
ҟ -> k
Ҡ -> K
ҡ -> k
Ң -> H
Ҥ -> H
Ҫ -> C
ҫ -> c
Ҭ -> T
ҭ -> t
Ү -> Y
ү -> y
Ұ -> Y
ұ -> y
Ҳ -> X
ҳ -> x
Һ -> h
һ -> h
Ҽ -> E
ҽ -> e
Ҿ -> E
ҿ -> e
Ӏ -> I
Ӄ -> K
ӄ -> k
Ӈ -> H
ӈ -> H
Ӊ -> H
ӊ -> H
Ӎ -> M
ӎ -> m
ӏ -> I
Ӑ -> A
ӑ -> a
Ӓ -> A
ӓ -> a
Ӗ -> E
ӗ -> e
Ӧ -> O
ӧ -> o
Ӯ -> Y
ӯ -> y
Ӱ -> Y
ӱ -> y
Ӳ -> Y
ӳ -> y
Ӽ -> X
ӽ -> x

Answer 3

Here is a solution converting Cyrillic to Latin for SQL Server.

create function fn_Cyrillic2Latin (@string nvarchar(max)) 
returns nvarchar(max) as
begin

set @string = replace (@string, N'ый'       ,N'y')
set @string = replace (@string, N'ЫЙ'       ,N'Y')
set @string = replace (@string, N'а'        ,N'a')
set @string = replace (@string, N'б'        ,N'b')
set @string = replace (@string, N'в'        ,N'v')
set @string = replace (@string, N'г'        ,N'g')
set @string = replace (@string, N'д'        ,N'd')
set @string = replace (@string, N'е'        ,N'e')
set @string = replace (@string, N'ё'        ,N'yo')
set @string = replace (@string, N'ж'        ,N'zh')
set @string = replace (@string, N'з'        ,N'z')
set @string = replace (@string, N'и'        ,N'i')
set @string = replace (@string, N'й'        ,N'y')
set @string = replace (@string, N'к'        ,N'k')
set @string = replace (@string, N'л'        ,N'l')
set @string = replace (@string, N'м'        ,N'm')
set @string = replace (@string, N'н'        ,N'n')
set @string = replace (@string, N'о'        ,N'o')
set @string = replace (@string, N'п'        ,N'p')
set @string = replace (@string, N'р'        ,N'r')
set @string = replace (@string, N'с'        ,N's')
set @string = replace (@string, N'т'        ,N't')
set @string = replace (@string, N'у'        ,N'u')
set @string = replace (@string, N'ф'        ,N'f')
set @string = replace (@string, N'х'        ,N'kh')
set @string = replace (@string, N'ц'        ,N'c')
set @string = replace (@string, N'ч'        ,N'ch')
set @string = replace (@string, N'ш'        ,N'sh')
set @string = replace (@string, N'щ'        ,N'shch')
set @string = replace (@string, N'ъ'        ,N' ')
set @string = replace (@string, N'ы'        ,N'y')
set @string = replace (@string, N'ь'        ,N'')
set @string = replace (@string, N'э'        ,N'e')
set @string = replace (@string, N'ю'        ,N'yu')
set @string = replace (@string, N'я'        ,N'ya')
set @string = replace (@string, N'А'        ,N'A')
set @string = replace (@string, N'Б'        ,N'B')
set @string = replace (@string, N'В'        ,N'V')
set @string = replace (@string, N'Г'        ,N'G')
set @string = replace (@string, N'Д'        ,N'D')
set @string = replace (@string, N'Е'        ,N'E')
set @string = replace (@string, N'Ё'        ,N'YO')
set @string = replace (@string, N'Ж'        ,N'ZH')
set @string = replace (@string, N'З'        ,N'Z')
set @string = replace (@string, N'И'        ,N'I')
set @string = replace (@string, N'Й'        ,N'Y')
set @string = replace (@string, N'К'        ,N'K')
set @string = replace (@string, N'Л'        ,N'L')
set @string = replace (@string, N'М'        ,N'M')
set @string = replace (@string, N'Н'        ,N'N')
set @string = replace (@string, N'О'        ,N'O')
set @string = replace (@string, N'П'        ,N'P')
set @string = replace (@string, N'Р'        ,N'R')
set @string = replace (@string, N'С'        ,N'S')
set @string = replace (@string, N'Т'        ,N'T')
set @string = replace (@string, N'У'        ,N'U')
set @string = replace (@string, N'Ф'        ,N'F')
set @string = replace (@string, N'Х'        ,N'KH')
set @string = replace (@string, N'Ц'        ,N'C')
set @string = replace (@string, N'Ч'        ,N'CH')
set @string = replace (@string, N'Ш'        ,N'SH')
set @string = replace (@string, N'Щ'        ,N'SHCH')
set @string = replace (@string, N'Ъ'        ,N'')
set @string = replace (@string, N'Ы'        ,N'Y')
set @string = replace (@string, N'Ь'        ,N'')
set @string = replace (@string, N'Э'        ,N'E')
set @string = replace (@string, N'Ю'        ,N'YU')
set @string = replace (@string, N'Я'        ,N'YA')

return @String
end

Answer 4

Macedonian Cyrillic can be coverted to Latin using this function

CREATE FUNCTION dbo.MacedonianCyrillic2Latin (@String varchar(MAX))
RETURNS nvarchar(MAX)
AS 
BEGIN
    DECLARE @s nvarchar(MAX) = @String

    SET @s = REPLACE(@s, N'А', N'A')
    SET @s = REPLACE(@s, N'Б', N'B')
    SET @s = REPLACE(@s, N'В', N'V')
    SET @s = REPLACE(@s, N'Г', N'Đ')
    SET @s = REPLACE(@s, N'Д', N'D')
    SET @s = REPLACE(@s, N'Ѓ', N'G')
    SET @s = REPLACE(@s, N'Е', N'E')
    SET @s = REPLACE(@s, N'Ж', N'Ž')
    SET @s = REPLACE(@s, N'З', N'Z')
    SET @s = REPLACE(@s, N'Ѕ', N'Dz')
    SET @s = REPLACE(@s, N'И', N'I')
    SET @s = REPLACE(@s, N'Ј', N'J')
    SET @s = REPLACE(@s, N'К', N'K')
    SET @s = REPLACE(@s, N'Л', N'L')
    SET @s = REPLACE(@s, N'Љ', N'Lj')
    SET @s = REPLACE(@s, N'М', N'M')
    SET @s = REPLACE(@s, N'Н', N'N')
    SET @s = REPLACE(@s, N'Њ', N'Nj')
    SET @s = REPLACE(@s, N'О', N'O')
    SET @s = REPLACE(@s, N'П', N'P')
    SET @s = REPLACE(@s, N'Р', N'R')
    SET @s = REPLACE(@s, N'С', N'S')
    SET @s = REPLACE(@s, N'Т', N'T')
    SET @s = REPLACE(@s, N'Ќ', N'Kj')
    SET @s = REPLACE(@s, N'У', N'U')
    SET @s = REPLACE(@s, N'Ф', N'G')
    SET @s = REPLACE(@s, N'Х', N'H')
    SET @s = REPLACE(@s, N'Ц', N'C')
    SET @s = REPLACE(@s, N'Ч', N'Č')
    SET @s = REPLACE(@s, N'Џ', N'Dž')
    SET @s = REPLACE(@s, N'Ш', N'Š')
    SET @s = REPLACE(@s, N'а', N'a')
    SET @s = REPLACE(@s, N'б', N'b')
    SET @s = REPLACE(@s, N'в', N'v')
    SET @s = REPLACE(@s, N'г', N'đ')
    SET @s = REPLACE(@s, N'д', N'd')
    SET @s = REPLACE(@s, N'ѓ', N'g')
    SET @s = REPLACE(@s, N'е', N'e')
    SET @s = REPLACE(@s, N'ж', N'ž')
    SET @s = REPLACE(@s, N'з', N'z')
    SET @s = REPLACE(@s, N'ѕ', N'dz')
    SET @s = REPLACE(@s, N'и', N'i')
    SET @s = REPLACE(@s, N'ј', N'j')
    SET @s = REPLACE(@s, N'к', N'k')
    SET @s = REPLACE(@s, N'л', N'l')
    SET @s = REPLACE(@s, N'љ', N'lj')
    SET @s = REPLACE(@s, N'м', N'm')
    SET @s = REPLACE(@s, N'н', N'n')
    SET @s = REPLACE(@s, N'њ', N'nj')
    SET @s = REPLACE(@s, N'о', N'o')
    SET @s = REPLACE(@s, N'п', N'p')
    SET @s = REPLACE(@s, N'р', N'r')
    SET @s = REPLACE(@s, N'с', N's')
    SET @s = REPLACE(@s, N'т', N't')
    SET @s = REPLACE(@s, N'ќ', N'kj')
    SET @s = REPLACE(@s, N'у', N'u')
    SET @s = REPLACE(@s, N'ф', N'g')
    SET @s = REPLACE(@s, N'х', N'h')
    SET @s = REPLACE(@s, N'ц', N'c')
    SET @s = REPLACE(@s, N'ч', N'č')
    SET @s = REPLACE(@s, N'џ', N'dž')
    SET @s = REPLACE(@s, N'ш', N'š')

    RETURN @s 
END