CUBRID学习笔记 34 net参数化查询 cubrid教程示例

using CUBRID.Data.CUBRIDClient;

namespace ParameterExample
{
    class Program
    {
        static void Main(string[] args)
        {
            CUBRIDConnectionStringBuilder sb = new CUBRIDConnectionStringBuilder("localhost", "demodb", "public", "", "33000");
            using (CUBRIDConnection conn = new CUBRIDConnection(sb.GetConnectionString()))
            {
                conn.Open();
                using (CUBRIDCommand cmd = new CUBRIDCommand("create table t(a int, b varchar(20))", conn))
                {
                    cmd.ExecuteNonQuery();
                }

                using (CUBRIDCommand cmd = new CUBRIDCommand("insert into t values(?, ?)", conn))
                {
                    CUBRIDParameter p1 = new CUBRIDParameter("?p1", CUBRIDDataType.CCI_U_TYPE_INT);
                    p1.Value = 1;
                    cmd.Parameters.Add(p1);

                    CUBRIDParameter p2 = new CUBRIDParameter("?p2", CUBRIDDataType.CCI_U_TYPE_STRING);
                    p2.Value = "abc";
                    cmd.Parameters.Add(p2);

                    cmd.ExecuteNonQuery();
                }
                conn.Close();
            }
        }
    }
}

　　

和net差不多,区别是 CUBRID.Data.CUBRIDClient封装了

using System;

namespace System.Data
{
    // Summary:
    //     Specifies the type of a parameter within a query relative to the System.Data.DataSet.
    public enum ParameterDirection
    {
        // Summary:
        //     The parameter is an input parameter.
        Input = 1,
        //
        // Summary:
        //     The parameter is an output parameter.
        Output = 2,
        //
        // Summary:
        //     The parameter is capable of both input and output.
        InputOutput = 3,
        //
        // Summary:
        //     The parameter represents a return value from an operation such as a stored
        //     procedure, built-in function, or user-defined function.
        ReturnValue = 6,
    }
}