[성현모] TRA Extract

CPXV2 TRA JSON/SystemX.Product.CP.TRA.Extract/DBService.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Collections.Generic;
+using System.Data.SqlClient;
+using System.IO;
+using System.IO.Compression;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SystemX.Product.CP.TRA.Extract
+{
+
+    public class DBService
+    {
+        private string connectionString = "Server=192.168.0.69;Database=CPXV2ShortTermLogJson;User Id=Alis;Password=Kefico!@34;";
+
+        public void GetLargeData()
+        {
+            // 1. 연결 생성
+            using (SqlConnection conn = new SqlConnection(connectionString))
+            {
+                try
+                {
+                    // 2. 실행할 쿼리 작성 (JOIN 포함)
+                    string sql = @"SELECT [TestListFileNo]
+                                  ,[StepID]
+                                  ,[StepVersion]
+                                  ,[StepDesc]
+                                  ,[SpecMin]
+                                  ,[SpecMax]
+                                  ,[Dim]
+                              FROM [CPXV2].[dbo].[VRFY_TestListFileRelease] where StepDesc like 'an10_off' order by testlistfileno";
+
+                    SqlCommand cmd = new SqlCommand(sql, conn);
+                    // 타임아웃 설정 (600만 건은 시간이 걸릴 수 있으므로 0(무제한) 또는 넉넉하게 설정)
+                    cmd.CommandTimeout = 300;
+                    conn.Open();
+
+                    // 3. DataReader로 데이터 읽기
+                    using (SqlDataReader reader = cmd.ExecuteReader())
+                    {
+                        while (reader.Read())
+                        {
+                            // 예: 데이터 처리 로직
+                            var val = Decompression(reader["LogData"].ToString());
+                        }
+                    }
+
+                    //sql = @"SELECT * FROM HIST_LogSummary_2025 as Summary with(nolock) JOIN HIST_TestResult_2025 as Result with(nolock) ON Summary.No = Result.No";
+                }
+                catch (SqlException ex)
+                {
+                    Console.WriteLine("DB 오류 발생: " + ex.Message);
+                }
+            }
+        }
+
+        public static string Decompression(string compressedDataStr)
+        {
+            string result = null;
+            byte[] buffer = Convert.FromBase64String(compressedDataStr);
+            using (MemoryStream stream = new MemoryStream(buffer))
+            {
+                using (GZipStream stream2 = new GZipStream(stream, CompressionMode.Decompress))
+                {
+                    using (StreamReader streamReader = new StreamReader(stream2))
+                    {
+                        result = streamReader.ReadToEnd();
+                    }
+                }                    
+            }
+
+            return result;
+        }
+    }
+}