Question

我有以下exec查询：

EXEC (
        'SELECT (SELECT Count(*) AS Count_Id FROM ns_customer WHERE external_id IN (
        ' RW00363075 ',' RW00336566 ',' RW00365438 ',' RW00343570 ')  ) AS Count_Id, 
        ACH_allowed, CC_allowed, DD_allowed FROM ns_customer 
        WHERE external_id IN (' RW00363075 ',' RW00336566 ',' RW00365438 ',
        ' RW00343570 ')'
        );

执行后我收到错误：

SQL语句：'RW00363075'附近的语法不正确。引起： 'RW00363075'附近的语法不正确。

我该如何解决这个问题？

由于

Answer 1

使用两个单引号转义单引号

EXEC('SELECT (SELECT Count(*) AS Count_Id FROM ns_customer WHERE external_id IN (''RW00363075'',''RW00336566'',''RW00365438'',''RW00343570'')  ) AS Count_Id, ACH_allowed, CC_allowed, DD_allowed FROM ns_customer 
    WHERE external_id IN (''RW00363075'',''RW00336566'',''RW00365438'',''RW00343570'')');

Answer 2

您的具体问题的答案是加倍单引号。但是，（假设您使用的是SQL Server），您的查询将更简单地写为：

SELECT COUNT(*) OVER () as Count_Id, ACH_allowed, CC_allowed, DD_allowed
FROM ns_customer 
WHERE external_id IN ('RW00363075', 'RW00336566', 'RW00365438', 'RW00343570')

或者，根据我的喜好，使用sp_executesql：

declare @sql nvarchar(max);
set @sql = '
SELECT COUNT(*) OVER () as Count_Id, ACH_allowed, CC_allowed, DD_allowed
FROM ns_customer 
WHERE external_id IN (''RW00363075'', ''RW00336566'', ''RW00365438'', ''RW00343570'')';

exec sp_executesql @sql;

如果您要学习如何做到这一点，您也可以学习正确的方法。 sp_executesql优于exec()，因为它允许您将参数传入和传出查询。首先学习使用它比以后学习更简单。

由于单引号内部执行SQL错误

2 个答案: