Oracle入库速度测试(C#版)
测试环境：Intel Xeon 2.4G四核心 2.5G内存
Server 2003 Enterprise Edition Service Pack 2
Oracle9i Enterprise Edition 9.2.0.1.0
Microsoft Visual Studio 2008
组件Oracle提供的Oracle.DataAccess.dll
建立测试表：
CREATE TABLE TEST(TEST_ID NUMBER(10, 0),TEST_NAME VARCHAR2(50),TEST_TIME TIMESTAMP,TEST_VALUE NUMBER(10, 3));
连接Oracle过程略。
一个测试用的类：
class Util{ public static Random rand = new Random(); public static String atoz = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; public static String GenString(int length) { StringBuilder re = new StringBuilder(length); for (Int32 i = 0; i < length; i++) { re.Append(atoz); } return re.ToString(); } public static Double GenDouble() { Double d1 = 2500 * rand.NextDouble(); Double d2 = 500000 * rand.NextDouble(); return d1 + d2; } public static Int32[] Split(Int32 total) { Int32 splitSize = 51200; Int32[] result = new Int32[(total + splitSize - 1) / splitSize]; Int32 idx = 0; for (; idx < result.Length - 1; idx++) { total = total - splitSize; result = splitSize; } result = total; return result; }}
先来个拼sql入库：
public static void SimpleInsert(Int32 total){ Thread.Sleep(new TimeSpan(0, 0, 3)); DateTime current = DateTime.Now; String currentStr = current.ToString("yyyy-MM-dd HH:mm:ss"); using (OracleConnection oraConn = new OracleConnection(connStr)) { oraConn.Open(); DateTime begin = DateTime.Now; for (Int32 i = 1; i <= total; i++) { String sqlStr = String.Format("INSERT INTO TEST (TEST_ID, TEST_NAME, TEST_TIME, TEST_VALUE) VALUES ({0}, '{1}', to_date('{2}','yyyy-MM-dd HH24:mi:ss'), {3})", (Int32)i, Util.GenString(5), currentStr, new Decimal(Util.GenDouble())); OracleCommand oraCmd = new OracleCommand(sqlStr, oraConn); oraCmd.ExecuteNonQuery(); } DateTime end = DateTime.Now; Console.WriteLine("Count:{0} Time:{1}", total, (end - begin).TotalMilliseconds); oraConn.Close(); }}
测试结果：
Count:10240 Time:21828.125
Count:10240 Time:21890.625
Count:10240 Time:23234.375
Count:10240 Time:30468.75
Count:10240 Time:22734.375
Count:10240 Time:22484.375
Count:10240 Time:22593.75
Count:10240 Time:24203.125
Count:10240 Time:22546.875
Count:10240 Time:22375
总结：
平均入库速度每1万条22.89秒
绑定参数法入库：
public static void TraditionalInsert(Int32 total){ Thread.Sleep(new TimeSpan(0, 0, 3)); DateTime current = DateTime.Now; using (OracleConnection oraConn = new OracleConnection(connStr)) { oraConn.Open(); DateTime begin = DateTime.Now; OracleCommand oraCmd = new OracleCommand("INSERT INTO TEST (TEST_ID, TEST_NAME, TEST_TIME, TEST_VALUE) VALUES (:t_id, :t_name, :t_time, :t_value)", oraConn); OracleTransaction transaction = oraConn.BeginTransaction(IsolationLevel.ReadCommitted); OracleParameter tId = new OracleParameter("t_id", OracleDbType.Decimal);//, 4, "TEST_ID"); oraCmd.Parameters.Add(tId); OracleParameter tName = new OracleParameter("t_name", OracleDbType.Varchar2);//, 100, "TEST_NAME"); oraCmd.Parameters.Add(tName); OracleParameter tTime = new OracleParameter("t_time", OracleDbType.TimeStamp);//, 8, "TEST_TIME"); oraCmd.Parameters.Add(tTime); OracleParameter tValue = new OracleParameter("t_value", OracleDbType.Decimal);//, 9, "TEST_VALUE"); oraCmd.Parameters.Add(tValue); for (Int32 i = 1; i <= total; i++) { tId.Value = new Decimal(i); tName.Value = Util.GenString(5); tTime.Value = current; tValue.Value = new Decimal(Util.GenDouble()); oraCmd.ExecuteNonQuery(); } transaction.Commit(); DateTime end = DateTime.Now; Console.WriteLine("Count:{0} Time:{1}", total, (end - begin).TotalMilliseconds); oraConn.Close(); }}
测试结果：
Count:30720 Time:31609.375
Count:30720 Time:31875
Count:30720 Time:31687.5
Count:30720 Time:31187.5
Count:30720 Time:30906.25
Count:30720 Time:31078.125
Count:30720 Time:30781.25
Count:30720 Time:31062.5
Count:30720 Time:31375
Count:30720 Time:32125
总结：
平均入库速度每1万条10.21秒
数组绑定法入库：
public static void ArrayBindInsert(Int32 total){ Thread.Sleep(new TimeSpan(0, 0, 3)); DateTime current = DateTime.Now; Int32[] splitTotal = Util.Split(total); using (OracleConnection oraConn = new OracleConnection(connStr)) { oraConn.Open(); DateTime begin = DateTime.Now; foreach (Int32 smallCout in splitTotal) { Decimal[] tId = new Decimal; String[] tName = new String; DateTime[] tTime = new DateTime; Decimal[] tValue = new Decimal; for (Int32 i = 1; i <= smallCout; i++) { tId = new Decimal(i); tName = Util.GenString(5); tTime = current; tValue = new Decimal(Util.GenDouble()); } OracleCommand oraCmd = new OracleCommand("INSERT INTO TEST (TEST_ID, TEST_NAME, TEST_TIME, TEST_VALUE) VALUES (:t_id, :t_name, :t_time, :t_value)", oraConn); oraCmd.ArrayBindCount = smallCout; OracleParameter pId = new OracleParameter("t_id", OracleDbType.Decimal); pId.Direction = ParameterDirection.Input; pId.Value = tId; oraCmd.Parameters.Add(pId); OracleParameter pName = new OracleParameter("t_name", OracleDbType.Varchar2); pName.Direction = ParameterDirection.Input; pName.Value = tName; oraCmd.Parameters.Add(pName); OracleParameter pTime = new OracleParameter("t_time", OracleDbType.TimeStamp); pTime.Direction = ParameterDirection.Input; pTime.Value = tTime; oraCmd.Parameters.Add(pTime); OracleParameter pValue = new OracleParameter("t_value", OracleDbType.Decimal); pValue.Direction = ParameterDirection.Input; pValue.Value = tValue; oraCmd.Parameters.Add(pValue); oraCmd.ExecuteNonQuery(); } DateTime end = DateTime.Now; Console.WriteLine("Count:{0} Time:{1}", total, (end - begin).TotalMilliseconds); oraConn.Close(); }}
测试结果：
Count:1024000 Time:26781.25
Count:1024000 Time:24203.125
Count:1024000 Time:24375
Count:1024000 Time:26484.375
Count:1024000 Time:24250
Count:1024000 Time:29812.5
Count:1024000 Time:26640.625
Count:1024000 Time:28437.5
Count:1024000 Time:31156.25
Count:1024000 Time:28203.125
总结：
平均入库速度每100万条26.40秒
数组绑定法的注意事项：数组长度最好要小于65535，否则……
页:
[1]