返回多个值存储过程

Posted 2021-02-25

######### SQL #########################################
 
CREATE PROCEDURE dbo.getTwoValues
(
	@param1 INT
)
 
AS
 
SELECT returnval1, returnval2 FROM tblWhatever WHERE param1 = @param1
 
########## C# #########################################
 
string connString = ConnectionManager.ConnectionString["ConnString"].ToString();
 
USING(SqlConnection conn = NEW SqlConnection(connString))
{
	SqlCommand getTwoValues = NEW SqlCommand("[getTwoValues]", conn);
	getTwoValues.CommandType = ...StoredProcedure;
	getTwoValues.Parameters.AddWithValue("@param1", 1);
 
	conn.Open();
	SqlDataReader reader = getTwoValues.ExecuteReader();
 
	// Repeat FOR ALL returned ROWS
	while(reader.Read())
	{
		string firstValue = reader.GetString(reader.GetOrdinal("returnval1"));
		INT secondValue = reader.GetInt32(readder.GetOrdinal("returnval2"));
 
		// Do stuff WITH VALUES
	}
}