我已经阅读了许多类似的问题,但答案根本不起作用。在 sql 中运行此函数select * from HelloRow('o')
不返回任何行。运行HelloRow('one')
返回名称为“one”的行。fillrow 方法不做任何事情(只是读取字符串)。
[Microsoft.SqlServer.Server.SqlFunction(FillRowMethodName = "HelloFillRow", DataAccess = DataAccessKind.Read, TableDefinition="message nchar(20)")]
public static IEnumerable HelloQuery(SqlString like)
{
ArrayList resultCollection = new ArrayList();
using (SqlConnection connection = new SqlConnection("context connection=true"))
{
connection.Open();
using (SqlCommand select = new SqlCommand(
"select name from test where name like @par"
, connection))
{
select.Parameters.Add("par", SqlDbType.NChar, 10).Value = like + "%";
using (SqlDataReader selectReader = select.ExecuteReader())
{
while (selectReader.Read())
{
SqlString nextName = selectReader.GetString(0);
resultCollection.Add(nextName.ToString());
}
}
}
}
return resultCollection;
}