为什么我不能读非英文字符? [英] Why i cant read non English characters?
问题描述
创建表格temp2(
a varchar(10),
b nvarchar(10)
);
插入temp2(a,b)
值('גג','דד');
create table temp2 (
a varchar(10),
b nvarchar(10)
);
insert into temp2 (a, b)
values ('גג','דד');
从temp2中选择*;将显示'??'非英语字符应该在哪里。
select * from temp2; will show '??" where the non English characters were supposed to be.
为什么?
推荐答案
创建表格temp2(
a varchar(10),
  ; b nvarchar(10)
);
插入temp2(a,b)
值('גג','דד');
create table temp2 (
a varchar(10),
b nvarchar(10)
);
insert into temp2 (a, b)
values ('גג','דד');
从temp2中选择*;将显示'??'非英语字符应该在哪里。
select * from temp2; will show '??" where the non English characters were supposed to be.
为什么?
在包含Unicode字符的字符串文字之前指定前缀N.否则,文字被解释为varchar而不是nvarchar,并且排序规则中不可用的字符被转换为'?'。
Specify the prefix N before string literals that contain Unicode characters. Otherwise, the literal is interpreted as varchar instead of nvarchar and characters not available in the collation are translated to '?'.
INSERT INTO temp2 (a, b)
VALUES (N'גג'N,'דד');
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