sql-server – SQL Server：set character set(not collat??ion)

CREATE TABLE tableName (
    name VARCHAR(128) CHARACTER SET utf8
) DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;

请注意,我在这里设置了两个字符集.这是多余的,我添加了两种方式只是为了演示.

我也设置了整理,以证明整理是不同的.我不是要求整理整理. Most questions询问SQL Server中的字符集和编码是否使用归类回答,这是不一样的.

解决方法

Each SQL Server collation specifies three properties:

• The sort order to use for Unicode data types (nchar,nvarchar,and ntext). A sort order defines the sequence in which characters are
  sorted,and the way characters are evaluated in comparison operations.
• The sort order to use for non-Unicode character data types (char,varchar,and text).
• The code page used to store non-Unicode character data.

上面的报价来自2000年的docs.下面也说明了这一点.

DECLARE @T TABLE 
(
     code TINYINT PRIMARY KEY,Arabic_CS_AS CHAR(1) COLLATE Arabic_CS_AS NULL,Cyrillic_General_CS_AS CHAR(1) COLLATE Cyrillic_General_CS_AS NULL,Latin1_General_CS_AS CHAR(1) COLLATE Latin1_General_CS_AS NULL
);

INSERT INTO @T(code) VALUES (200),(201),(202),(203),(204),(205)

UPDATE @T 
  SET Arabic_CS_AS=CAST(code AS BINARY(1)),Cyrillic_General_CS_AS=CAST(code AS BINARY(1)),Latin1_General_CS_AS=CAST(code AS BINARY(1))

SELECT * 
FROM @T

结果

code Arabic_CS_AS Cyrillic_General_CS_AS Latin1_General_CS_AS
---- ------------ ---------------------- --------------------
200  ?            И                      è
201  ?            Й                      é
202  ?            К                      ê
203  ?            Л                      ?
204  ?            М                      ì
205  ?            Н                      í

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!