Question

如何在查询中插入单引号？

示例

select *, 'INSERT INTO San_Endereco (Endereco_Id, Logradouro_Id, Bairro_Id, CEP, Logradouro, Livre) VALUES 
(' + CAST(Endereco_Id as varchar) + ','
+ CAST(Logradouro_Id as varchar) + ','
+ CAST(Bairro_Id as varchar) + ','
+ CAST (CEP as varchar) + ','
+ CAST(Logradouro as varchar) + ','
+ CAST(Livre as varchar) + ')'  as teste
FROM San_Endereco

在每个CAST之前我需要把单引号。我怎么能这样做？

Answer 1

使用两个单引号：''

select *, 'INSERT INTO San_Endereco (Endereco_Id, Logradouro_Id, Bairro_Id, CEP, Logradouro, Livre) VALUES  
(''' + CAST(Endereco_Id as varchar) + ''',''' 
+ CAST(Logradouro_Id as varchar) + ''',''' 
+ CAST(Bairro_Id as varchar) + ''',''' 
+ CAST (CEP as varchar) + ''',''' 
+ CAST(Logradouro as varchar) + ''',''' 
+ CAST(Livre as varchar) + ''')'''  as teste 
FROM San_Endereco

Answer 2

使用双引号''

如果要插入的实际数据中包含单引号，则该命令通常会损坏。要解决这个问题，只需用两个引号替换任何单引号（不是双引号字符，而是两个单引号字符）。

Answer 3

declare @var varchar(100)
select @var = 'txt'        
select char(39)+@var+char(39) -- with single quote

Answer 4

select *, 'INSERT INTO San_Endereco (Endereco_Id, Logradouro_Id, Bairro_Id, CEP, Logradouro, Livre) VALUES 
        (''' + CAST(Endereco_Id as varchar) + ''','
    + ....

Answer 5

你必须在字符串中使用'两次：

declare @var varchar(100)
select @var = 'txt'        
select ' '+@var+' ' -- without single quote
select ''''+@var+'''' -- with single quote

查询中的单引号

5 个答案: