C# 使用oracle绑定变量后,查询效率变慢如何解决?满意可加分 oralce 绑定变量 C# 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 代码如下:public System.Data.DataSet Query(string SQLString, List<DBParameter> dbParam) { using (OracleConnection connection = new OracleConnection(connectionString)) { DataSet ds = new DataSet(); try { connection.Open(); OracleCommand cmd = GetCommand(SQLString, connection, dbParam); OracleDataAdapter command = new OracleDataAdapter(cmd); command.Fill(ds, "ds"); } catch (System.Data.OracleClient.OracleException ex) { throw new Exception(ex.Message); } connection.Close(); connection.Dispose(); return ds; } }public OracleCommand GetCommand(string SQLString, OracleConnection conn, List<DBParameter> dbParamers) { SQLString = DBBindFunction.GetFormatSQL(SQLString, "ORACLE"); OracleCommand oraCommand = new OracleCommand(SQLString, conn); if (dbParamers.Count > 0) { foreach (DBParameter dbParam in dbParamers) { OracleParameter oraParam = new OracleParameter(); oraParam.DbType = dbParam.ParameterType; oraParam.ParameterName = dbParam.ParameterName; oraParam.Value = dbParam.ParameterValue; oraCommand.Parameters.Add(oraParam); } } return oraCommand; } C#关于多条件查询的问题,后面总是多出一个and,怎么去掉 速求高手,字节压缩的算法问题 菜鸟问题,请求帮助!!! 动态生成的label如何分开,并且加一序列号? 查找所有匹配的字符串,然后都替换,高难度的 关于ado.net2.0得我问题 有没有好一点的方法把这样的字符串变成二给数组? 用正则取字符串 请问怎么判断combobox.txt的值是属于listbox中的值中的一个如果不是就删除怎么做? Silverlight 报表打印参数设置怎么弄 Wpf应用程序关闭时弹出Appcrash 4.5.1之后出现的HtmlDocument.Write问题,急问在线等。
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
DataSet ds = new DataSet();
try
{
connection.Open(); OracleCommand cmd = GetCommand(SQLString, connection, dbParam); OracleDataAdapter command = new OracleDataAdapter(cmd);
command.Fill(ds, "ds");
}
catch (System.Data.OracleClient.OracleException ex)
{
throw new Exception(ex.Message);
}
connection.Close();
connection.Dispose();
return ds;
}
}public OracleCommand GetCommand(string SQLString, OracleConnection conn, List<DBParameter> dbParamers)
{
SQLString = DBBindFunction.GetFormatSQL(SQLString, "ORACLE");
OracleCommand oraCommand = new OracleCommand(SQLString, conn); if (dbParamers.Count > 0)
{
foreach (DBParameter dbParam in dbParamers)
{
OracleParameter oraParam = new OracleParameter();
oraParam.DbType = dbParam.ParameterType;
oraParam.ParameterName = dbParam.ParameterName;
oraParam.Value = dbParam.ParameterValue;
oraCommand.Parameters.Add(oraParam);
}
}
return oraCommand;
}