我有一个表格,它是全部大写导入的,我想把它转换成 Proper Case(每个单词首字母大写)。你们中有谁使用过哪些脚本来完成这个操作?
我有一个表格,它是全部大写导入的,我想把它转换成 Proper Case(每个单词首字母大写)。你们中有谁使用过哪些脚本来完成这个操作?
这个函数:
CREATE FUNCTION ToProperCase(@string VARCHAR(255)) RETURNS VARCHAR(255)
AS
BEGIN
DECLARE @i INT -- index
DECLARE @l INT -- input length
DECLARE @c NCHAR(1) -- current char
DECLARE @f INT -- first letter flag (1/0)
DECLARE @o VARCHAR(255) -- output string
DECLARE @w VARCHAR(10) -- characters considered as white space
SET @w = '[' + CHAR(13) + CHAR(10) + CHAR(9) + CHAR(160) + ' ' + ']'
SET @i = 1
SET @l = LEN(@string)
SET @f = 1
SET @o = ''
WHILE @i <= @l
BEGIN
SET @c = SUBSTRING(@string, @i, 1)
IF @f = 1
BEGIN
SET @o = @o + @c
SET @f = 0
END
ELSE
BEGIN
SET @o = @o + LOWER(@c)
END
IF @c LIKE @w SET @f = 1
SET @i = @i + 1
END
RETURN @o
END
结果:
dbo.ToProperCase('ALL UPPER CASE and SOME lower ÄÄ ÖÖ ÜÜ ÉÉ ØØ ĈĈ ÆÆ')
-----------------------------------------------------------------
All Upper Case and Some lower Ää Öö Üü Éé Øø Cc Ææ
O'DONNELL
这样的名称就不会变成O'donnell
。 - JustinStolleSET @o = @o + @c
为 SET @o = @o + UPPER(@c)
即可。=) - NateJ这里有一个可以解决问题的UDF...
create function ProperCase(@Text as varchar(8000))
returns varchar(8000)
as
begin
declare @Reset bit;
declare @Ret varchar(8000);
declare @i int;
declare @c char(1);
if @Text is null
return null;
select @Reset = 1, @i = 1, @Ret = '';
while (@i <= len(@Text))
select @c = substring(@Text, @i, 1),
@Ret = @Ret + case when @Reset = 1 then UPPER(@c) else LOWER(@c) end,
@Reset = case when @c like '[a-zA-Z]' then 0 else 1 end,
@i = @i + 1
return @Ret
end
虽然如此,您仍需使用它来更新您的数据。
UPDATE titles
SET title =
UPPER(LEFT(title, 1)) +
LOWER(RIGHT(title, LEN(title) - 1))
WHERE title IS NOT NULL
来解决 @Serg 的问题。 - user1945782SUBSTRING
代替RIGHT
,以便在长度为零的字符串上不会出现错误。 - robotikdbo.fn_SentenceCase
,而不是ProperCase,因为它只将整个字符串的第一个字母大写。 - alejandrob我知道这是在这个帖子中发布得很晚,但是很值得一看。这个函数每次对我都有用,所以想分享它。
CREATE FUNCTION [dbo].[fnConvert_TitleCase] (@InputString VARCHAR(4000) )
RETURNS VARCHAR(4000)
AS
BEGIN
DECLARE @Index INT
DECLARE @Char CHAR(1)
DECLARE @OutputString VARCHAR(255)
SET @OutputString = LOWER(@InputString)
SET @Index = 2
SET @OutputString = STUFF(@OutputString, 1, 1,UPPER(SUBSTRING(@InputString,1,1)))
WHILE @Index <= LEN(@InputString)
BEGIN
SET @Char = SUBSTRING(@InputString, @Index, 1)
IF @Char IN (' ', ';', ':', '!', '?', ',', '.', '_', '-', '/', '&','''','(')
IF @Index + 1 <= LEN(@InputString)
BEGIN
IF @Char != ''''
OR
UPPER(SUBSTRING(@InputString, @Index + 1, 1)) != 'S'
SET @OutputString =
STUFF(@OutputString, @Index + 1, 1,UPPER(SUBSTRING(@InputString, @Index + 1, 1)))
END
SET @Index = @Index + 1
END
RETURN ISNULL(@OutputString,'')
END
测试调用:
select dbo.fnConvert_TitleCase(Upper('ÄÄ ÖÖ ÜÜ ÉÉ ØØ ĈĈ ÆÆ')) as test
select dbo.fnConvert_TitleCase(upper('Whatever the mind of man can conceive and believe, it can achieve. – Napoleon hill')) as test
结果:
if (patindex('[A-Za-z]', @Char) = 0)
代替你的IF @Char IN (...)
这行代码。 - Andrew Jens我可能有些晚到,但我认为这种方法更实用,并且适用于任何语言,包括俄语、德语、泰语、越南语等等。 它将会大写任何在引号、连字符、句点、括号或空格(显然:)后面的内容。
CREATE FUNCTION [dbo].[fnToProperCase]( @name nvarchar(500) )
RETURNS nvarchar(500)
AS
BEGIN
declare @pos int = 1
, @pos2 int
if (@name <> '')--or @name = lower(@name) collate SQL_Latin1_General_CP1_CS_AS or @name = upper(@name) collate SQL_Latin1_General_CP1_CS_AS)
begin
set @name = lower(rtrim(@name))
while (1 = 1)
begin
set @name = stuff(@name, @pos, 1, upper(substring(@name, @pos, 1)))
set @pos2 = patindex('%[- ''.)(]%', substring(@name, @pos, 500))
set @pos += @pos2
if (isnull(@pos2, 0) = 0 or @pos > len(@name))
break
end
end
return @name
END
GO
如果你在使用SSIS导入数据时遇到大小写混合的情况,并且需要在一个有正确大小写的列上进行查找,你会发现当源是混合的而查找源是正确的时查找失败。你还会注意到,在SQL Server 2008r2中,不能在派生列中使用right和left函数。以下是我的解决方案:
UPPER(substring(input_column_name,1,1)) + LOWER(substring(input_column_name, 2, len(input_column_name)-1))
在Server 2016及更新版本中,您可以使用STRING_SPLIT函数。
with t as (
select 'GOOFYEAR Tire and Rubber Company' as n
union all
select 'THE HAPPY BEAR' as n
union all
select 'MONK HOUSE SALES' as n
union all
select 'FORUM COMMUNICATIONS' as n
)
select
n,
(
select ' ' + (
upper(left(value, 1))
+ lower(substring(value, 2, 999))
)
from (
select value
from string_split(t.n, ' ')
) as sq
for xml path ('')
) as title_cased
from t
'[^a-z]'
' 替换为 ''[' + Char(32) + Char(9) + Char(13) + Char(10) + ']'
'。CREATE FUNCTION String.InitCap( @string nvarchar(4000) ) RETURNS nvarchar(4000) AS
BEGIN
-- 1. Convert all letters to lower case
DECLARE @InitCap nvarchar(4000); SET @InitCap = Lower(@string);
-- 2. Using a Sequence, replace the letters that should be upper case with their upper case version
SELECT @InitCap = Stuff( @InitCap, n, 1, Upper( SubString( @InitCap, n, 1 ) ) )
FROM (
SELECT (1 + n1.n + n10.n + n100.n + n1000.n) AS n
FROM (SELECT 0 AS n UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 UNION SELECT 7 UNION SELECT 8 UNION SELECT 9) AS n1
CROSS JOIN (SELECT 0 AS n UNION SELECT 10 UNION SELECT 20 UNION SELECT 30 UNION SELECT 40 UNION SELECT 50 UNION SELECT 60 UNION SELECT 70 UNION SELECT 80 UNION SELECT 90) AS n10
CROSS JOIN (SELECT 0 AS n UNION SELECT 100 UNION SELECT 200 UNION SELECT 300 UNION SELECT 400 UNION SELECT 500 UNION SELECT 600 UNION SELECT 700 UNION SELECT 800 UNION SELECT 900) AS n100
CROSS JOIN (SELECT 0 AS n UNION SELECT 1000 UNION SELECT 2000 UNION SELECT 3000) AS n1000
) AS Sequence
WHERE
n BETWEEN 1 AND Len( @InitCap )
AND SubString( @InitCap, n, 1 ) LIKE '[a-z]' /* this character is a letter */
AND (
n = 1 /* this character is the first `character` */
OR SubString( @InitCap, n-1, 1 ) LIKE '[^a-z]' /* the previous character is NOT a letter */
)
AND (
n < 3 /* only test the 3rd or greater characters for this exception */
OR SubString( @InitCap, n-2, 3 ) NOT LIKE '[a-z]''[a-z]' /* exception: The pattern <letter>'<letter> should not capatolize the letter following the apostrophy */
)
-- 3. Return the modified version of the input
RETURN @InitCap
END
SELECT INITCAP(title) FROM data;
在SQL Server中,首先按照以下方式定义函数,然后:
SELECT dbo.InitCap(title) FROM data;
定义dbo.InitCap()函数:
-- Drop the function if it already exists
IF OBJECT_ID('dbo.InitCap') IS NOT NULL
DROP FUNCTION dbo.InitCap;
GO
-- Implementing Oracle INITCAP function
CREATE FUNCTION dbo.InitCap (@inStr VARCHAR(8000))
RETURNS VARCHAR(8000)
AS
BEGIN
DECLARE @outStr VARCHAR(8000) = LOWER(@inStr),
@char CHAR(1),
@alphanum BIT = 0,
@len INT = LEN(@inStr),
@pos INT = 1;
-- Iterate through all characters in the input string
WHILE @pos <= @len BEGIN
-- Get the next character
SET @char = SUBSTRING(@inStr, @pos, 1);
-- If the position is first, or the previous characater is not alphanumeric
-- convert the current character to upper case
IF @pos = 1 OR @alphanum = 0
SET @outStr = STUFF(@outStr, @pos, 1, UPPER(@char));
SET @pos = @pos + 1;
-- Define if the current character is non-alphanumeric
IF ASCII(@char) <= 47 OR (ASCII(@char) BETWEEN 58 AND 64) OR
(ASCII(@char) BETWEEN 91 AND 96) OR (ASCII(@char) BETWEEN 123 AND 126)
SET @alphanum = 0;
ELSE
SET @alphanum = 1;
END
RETURN @outStr;
END
GO