我在 C# 中遇到查询问题。
我有这部分代码:
string query1 = @"
SELECT TOP @howManyRows * FROM
(
SELECT
PRODUCTCODE_.ID_ AS PRODUCTCODE_ID_,
PRODUCTCODE_.CATEGORY_ AS CATEGORY_,
PRODUCTCODE_.DESCRIPTION_ AS DESCRIPTION_,
PRODUCTCODE_.MANUFACTURER_ AS MANUFACTURER_,
PRODUCTLINE_.CREATION_DATE_ AS CREATION_DATE_,
ROW_NUMBER() OVER (ORDER BY PRODUCTCODE_.CATEGORY_) AS ROWNUMBER_,
TOTALROWS_ = COUNT(*) OVER()
FROM
PRODUCTCODE_
INNER JOIN
PRODUCTLINE_ ON PRODUCTLINE_.ID_ = PRODUCTCODE_.PRODUCTLINE_ID_
) _tmpList
WHERE
ROWNUMBER_ >= @startingWith
ORDER BY CATEGORY_
";
SqlParameter param1 = new SqlParameter();
param1.ParameterName = "@howManyRows";
param1.Value = resultPerPage; //`resultPerPage` is an integer function parameter
SqlParameter param2 = new SqlParameter();
param2.ParameterName = "@startingWith";
param2.Value = startsWith; //`startWith` is an integer function parameter
SqlCommand cmd = new SqlCommand( query1, connect );
cmd.Parameters.Add( param1 );
cmd.Parameters.Add( param2 );
当调试到达 SqlDataReader reader = cmd.ExecuteReader();
时抛出异常:
Incorrect syntax near @howManyRows ...
为什么?我使用 Parameters
属性定义并添加了 howManyRows
。
我的错误在哪里?
最佳答案
更改您的顶级查询语法
SELECT TOP @howManyRows * FROM
到
SELECT TOP (@howManyRows) * FROM
关于c# - 在 C# 中使用参数查询(使用 SQL Server),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8910659/