[英]Calling an Oracle insert stored procedure from C#
存儲過程:
CREATE OR REPLACE PROCEDURE insertMovie(
p_m_id IN MOVIE.M_ID%TYPE,
p_movie_name IN MOVIE.MOVIE_NAME%TYPE,
p_year IN MOVIE.YEAR%TYPE,
p_category IN MOVIE.CATEGORY%TYPE)
IS
BEGIN
INSERT INTO MOVIE ("M_ID", "MOVIE_NAME", "YEAR", "CATEGORY")
VALUES (p_m_id, p_movie_name,p_year, p_category);
END;
/
這是我創建的將數據插入movie
表的過程。 現在,我試圖通過C#調用它。 我已經嘗試了以下代碼,但無法正常工作。
在這方面的一點幫助將不勝感激。 謝謝
private void button1_Click(object sender, EventArgs e)
{
dbConnection conObj = new dbConnection();
OracleConnection theConn = conObj.connFunc();
String p_m_id, p_movie_name, p_year, p_category;
p_m_id = movie_id.Text;
p_movie_name = movie_name.Text;
p_year = year.Text;
p_category = category.Text;
OracleParameter parChoiceIn = new OracleParameter();
OracleParameter parDataIn = new OracleParameter();
OracleParameter parOut = new OracleParameter();
parChoiceIn.ParameterName = "p_m_id";
parChoiceIn.OracleType = OracleType.Number;
parChoiceIn.Size = 32;
parChoiceIn.Direction = System.Data.ParameterDirection.Input;
parChoiceIn.Value = p_m_id;
parDataIn.ParameterName = "p_movie_name";
parDataIn.OracleType = OracleType.VarChar;
parDataIn.Size = 32;
parDataIn.Direction = System.Data.ParameterDirection.Input;
parDataIn.Value = p_movie_name;
parDataIn.ParameterName = "p_year";
parDataIn.OracleType = OracleType.Number;
parDataIn.Size = 32;
parDataIn.Direction = System.Data.ParameterDirection.Input;
parDataIn.Value = p_year;
parDataIn.ParameterName = "p_category";
parDataIn.OracleType = OracleType.VarChar;
parDataIn.Size = 32;
parDataIn.Direction = System.Data.ParameterDirection.Input;
parDataIn.Value = p_category;
OracleCommand cmd = theConn.CreateCommand();
cmd.CommandType = System.Data.CommandType.StoredProcedure;
cmd.CommandText = "insertMovie";
cmd.Parameters.Add(parChoiceIn);
cmd.Parameters.Add(parDataIn);
cmd.Parameters.Add(parOut);
theConn.Open();
OracleDataAdapter adapter = new OracleDataAdapter(cmd);
DataSet myset = new DataSet("theResCur");
adapter.Fill(myset);
theGrid.DataSource = myset;
theGrid.DataSource = myset.Tables[0];
theConn.Close();
}
}
您正在創建parOut
參數,但從未對其進行初始化。
另外,您將重新定義parDataIn
參數三次,這樣,您的OracleCommand
僅會收到最后定義的參數p_category
。
我不明白您在代碼的最后部分中打算做什么。 如果您只想調用存儲過程,也許您應該嘗試以下方法:
private void button1_Click(object sender, EventArgs e)
{
dbConnection conObj = new dbConnection();
OracleConnection theConn = conObj.connFunc();
String p_m_id, p_movie_name, p_year, p_category;
p_m_id = movie_id.Text;
p_movie_name = movie_name.Text;
p_year = year.Text;
p_category = category.Text;
theConn.Open();
OracleCommand cmd = theConn.CreateCommand();
cmd.CommandType = System.Data.CommandType.StoredProcedure;
cmd.CommandText = "insertMovie";
cmd.Connection = theConn;
OracleParameter parChoiceIn = new OracleParameter();
OracleParameter parDataIn = new OracleParameter();
parChoiceIn.ParameterName = "p_m_id";
parChoiceIn.OracleType = OracleType.Number;
parChoiceIn.Size = 32;
parChoiceIn.Direction = System.Data.ParameterDirection.Input;
parChoiceIn.Value = p_m_id;
cmd.Parameters.Add(parChoiceIn);
parDataIn.ParameterName = "p_movie_name";
parDataIn.OracleType = OracleType.VarChar;
parDataIn.Size = 32;
parDataIn.Direction = System.Data.ParameterDirection.Input;
parDataIn.Value = p_movie_name;
cmd.Parameters.Add(parDataIn);
parDataIn = new OracleParameter();
parDataIn.ParameterName = "p_year";
parDataIn.OracleType = OracleType.Number;
parDataIn.Size = 32;
parDataIn.Direction = System.Data.ParameterDirection.Input;
parDataIn.Value = p_year;
cmd.Parameters.Add(parDataIn);
parDataIn = new OracleParameter();
parDataIn.ParameterName = "p_category";
parDataIn.OracleType = OracleType.VarChar;
parDataIn.Size = 32;
parDataIn.Direction = System.Data.ParameterDirection.Input;
parDataIn.Value = p_category;
cmd.Parameters.Add(parDataIn);
cmd.ExecuteNonQuery();
theConn.Close();
}
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