刚才执行带参数据的SQL语句时报“ORA-01036: 非法的变量名/编号“错误。

错误代码如下:

    public static void ExecuteParameterSQL(string asName)
    {
        sConnectionString 
= ConfigurationManager.AppSettings.Get("UserConnection");
        OracleConnection ocConnection 
= new OracleConnection(sConnectionString);
        ocConnection.Open();

        OracleCommand ocCommand 
= ocConnection.CreateCommand();
        ocCommand.CommandType 
= CommandType.Text;
        ocCommand.CommandText 
= @"select EMPLOYEEID,EMPLOYEENAME from ORGANIZATION_EMPLOYEE where EMPLOYEENAME=@loginName";

        OracleParameter opName 
= new OracleParameter();
        opName.ParameterName 
= "loginName";
        opName.OracleType 
= OracleType.VarChar;
        opName.Value 
= asName;
        ocCommand.Parameters.Add(opName);

        
int i = (int)ocCommand.ExecuteNonQuery();
        ocConnection.Close();
    }

去网上查了一下,原来问题出在SQL语句中参数定义不对。SQL server中用“@”定义参数,而Oracle中用“:”。
将SQL语句修改如下,运行没有问题。注意代码中红色部分。
 /// <summary>
    
/// 执行参数
    
/// </summary>
    
/// <param name="asName"></param>
    public static void ExecuteParameterSQL(string asName)
    {
        sConnectionString 
= ConfigurationManager.AppSettings.Get("UserConnection");
        OracleConnection ocConnection 
= new OracleConnection(sConnectionString);
        ocConnection.Open();

        OracleCommand ocCommand 
= ocConnection.CreateCommand();
        ocCommand.CommandType 
= CommandType.Text;
        ocCommand.CommandText 
= @"select EMPLOYEEID,EMPLOYEENAME from ORGANIZATION_EMPLOYEE where EMPLOYEENAME=:loginName";

        OracleParameter opName 
= new OracleParameter();
        opName.ParameterName 
= "loginName";
        opName.OracleType 
= OracleType.VarChar;
        opName.Value 
= asName;
        ocCommand.Parameters.Add(opName);

        
int i = (int)ocCommand.ExecuteNonQuery();
        ocConnection.Close();
    }:

 

 

参考:http://topic.csdn.net/t/20051125/10/4417369.html

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