■ 피벗 테이블을 생성하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Collections.Generic; using System.Data; using System.Data.SQLite; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region CREATE_SOURCE_TABLE_SQL /// <summary> /// CREATE_SOURCE_TABLE_SQL /// </summary> private const string CREATE_SOURCE_TABLE_SQL = @" CREATE TABLE SOURCE_TABLE ( MANAGER TEXT NOT NULL ,SALES_MONTH TEXT NOT NULL ,SALES_AMOUNT INTEGER NOT NULL ,PRIMARY KEY(MANAGER, SALES_MONTH) ); "; #endregion #region INSERT_SOURCE_TABLE_SQL /// <summary> /// INSERT_SOURCE_TABLE_SQL /// </summary> private const string INSERT_SOURCE_TABLE_SQL = @" INSERT INTO SOURCE_TABLE ( MANAGER ,SALES_MONTH ,SALES_AMOUNT ) VALUES ( @MANAGER ,@SALES_MONTH ,@SALES_AMOUNT ); "; #endregion #region SELECT_COLUMN_COLUMN_VALUE_SQL /// <summary> /// SELECT_COLUMN_COLUMN_VALUE_SQL /// </summary> private const string SELECT_COLUMN_COLUMN_VALUE_SQL = "SELECT DISTINCT SALES_MONTH FROM SOURCE_TABLE ORDER BY SALES_MONTH ASC"; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.Load += Form_Load; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { using(SQLiteConnection connection = SQLiteHelper.GetConnection("Data Source=:memory:")) { connection.Open(); // 소스 테이블을 생성한다. SQLiteHelper.Execute(connection, CREATE_SOURCE_TABLE_SQL); // 소스 테이블에 데이터를 추가한다. InsertSourceTableData(connection); // 행 컬럼명 리스트를 설정한다. List<string> rowColumnNameList = SQLiteHelper.GetStringList("MANAGER"); // 컬럼 컬럼 값 리스트를 설정한다. DataTable columnColumnValueTable = SQLiteHelper.GetDataTable(connection, SELECT_COLUMN_COLUMN_VALUE_SQL); List<string> columnColumnValueList = SQLiteHelper.GetStringList(columnColumnValueTable, "SALES_MONTH"); // 정렬 컬럼명 리스트를 설정한다. List<string> orderByColumnNameList = SQLiteHelper.GetStringList("MANAGER"); // 피벗 합계 테이블을 생성한다. string pivotSummarySQL = SQLiteHelper.GetPivotSummarySQL("SOURCE_TABLE", rowColumnNameList, "SALES_MONTH", columnColumnValueList, "SALES_AMOUNT", orderByColumnNameList); SQLiteHelper.Execute(connection, "CREATE TABLE PIVOT_TABLE AS " + pivotSummarySQL); // 소스 테이블을 출력한다. DataTable sourceTable = SQLiteHelper.GetDataTable(connection, "SELECT * FROM SOURCE_TABLE"); // 소스 데이터 그리드 뷰에 소스 테이블을 바인딩 한다. this.sourceDataGridView.DataSource = sourceTable; // 피벗 테이블을 출력한다. DataTable pivotTable = SQLiteHelper.GetDataTable(connection, "SELECT * FROM PIVOT_TABLE"); // 피벗 데이터 그리드 뷰에 피벗 테이블을 바인딩 한다. this.pivotDataGridView.DataSource = pivotTable; } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 소스 데이터 추가하기 - InsertSourceData(connection, lotWafer, tkinTime, stepSeq, subItemID, value) /// <summary> /// 소스 데이터 추가하기 /// </summary> /// <param name="connection">연결</param> /// <param name="lotWafer">LOT_WF</param> /// <param name="tkinTime">TKIN_TIME</param> /// <param name="stepSeq">STEP_SEQ</param> /// <param name="subItemID">SUB_ITEM_ID</param> /// <param name="value">VALUE</param> /// <returns>처리 행 수</returns> private int InsertSourceData(SQLiteConnection connection, string manager, string salesMonth, double salesAmount) { List<SQLiteParameter> parameterList = new List<SQLiteParameter>() { new SQLiteParameter { ParameterName = "@MANAGER" , DbType = DbType.String, Value = manager }, new SQLiteParameter { ParameterName = "@SALES_MONTH" , DbType = DbType.String, Value = salesMonth }, new SQLiteParameter { ParameterName = "@SALES_AMOUNT", DbType = DbType.Double, Value = salesAmount} }; int result = SQLiteHelper.Execute(connection, INSERT_SOURCE_TABLE_SQL, parameterList); return result; } #endregion #region 소스 테이블 데이터 추가하기 - InsertSourceTableData(connection) /// <summary> /// 소스 테이블 데이터 추가하기 /// </summary> /// <param name="connection">연결</param> private void InsertSourceTableData(SQLiteConnection connection) { DateTime currentTime = DateTime.Now; InsertSourceData(connection, "홍길동", "01", 1000000); InsertSourceData(connection, "홍길동", "02", 1500000); InsertSourceData(connection, "홍길동", "03", 1000000); InsertSourceData(connection, "홍길동", "04", 2000000); InsertSourceData(connection, "홍길동", "05", 3000000); InsertSourceData(connection, "홍길동", "06", 1500000); InsertSourceData(connection, "홍길동", "07", 1000000); InsertSourceData(connection, "홍길동", "08", 1000000); InsertSourceData(connection, "홍길동", "09", 3000000); InsertSourceData(connection, "홍길동", "10", 4000000); InsertSourceData(connection, "홍길동", "11", 1000000); InsertSourceData(connection, "홍길동", "12", 1500000); InsertSourceData(connection, "김철수", "01", 500000); InsertSourceData(connection, "김철수", "02", 1500000); InsertSourceData(connection, "김철수", "03", 2000000); InsertSourceData(connection, "김철수", "04", 2500000); InsertSourceData(connection, "김철수", "05", 1000000); InsertSourceData(connection, "김철수", "06", 2500000); InsertSourceData(connection, "김철수", "07", 1500000); InsertSourceData(connection, "김철수", "08", 500000); InsertSourceData(connection, "김철수", "09", 500000); InsertSourceData(connection, "김철수", "10", 2000000); InsertSourceData(connection, "김철수", "11", 1000000); InsertSourceData(connection, "김철수", "12", 2500000); InsertSourceData(connection, "이영희", "01", 2500000); InsertSourceData(connection, "이영희", "02", 3500000); InsertSourceData(connection, "이영희", "03", 1000000); InsertSourceData(connection, "이영희", "04", 1500000); InsertSourceData(connection, "이영희", "05", 5000000); InsertSourceData(connection, "이영희", "06", 1500000); InsertSourceData(connection, "이영희", "07", 500000); InsertSourceData(connection, "이영희", "08", 500000); InsertSourceData(connection, "이영희", "09", 500000); InsertSourceData(connection, "이영희", "10", 500000); InsertSourceData(connection, "이영희", "11", 1000000); InsertSourceData(connection, "이영희", "12", 2000000); } #endregion } } |
▶ SQLiteHelper.cs
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using System.Collections.Generic; using System.Data; using System.Data.SQLite; using System.Text; namespace TestProject { /// <summary> /// SQLITE 헬퍼 /// </summary> public static class SQLiteHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 연결 구하기 - GetConnection(connectionString) /// <summary> /// 연결 구하기 /// </summary> /// <param name="connectionString">연결 문자열</param> /// <returns>연결</returns> public static SQLiteConnection GetConnection(string connectionString) { SQLiteConnection connection = new SQLiteConnection(connectionString); return connection; } #endregion #region 명령 구하기 - GetCommand(connection) /// <summary> /// 명령 구하기 /// </summary> /// <param name="connection">연결</param> /// <returns>명령</returns> public static SQLiteCommand GetCommand(SQLiteConnection connection) { SQLiteCommand command = new SQLiteCommand(connection); return command; } #endregion #region 데이터 어댑터 구하기 - GetDataAdapter() /// <summary> /// 데이터 어댑터 구하기 /// </summary> /// <returns>데이터 어댑터</returns> public static SQLiteDataAdapter GetDataAdapter() { SQLiteDataAdapter dataAdapter = new SQLiteDataAdapter(); return dataAdapter; } #endregion #region 실행하기 - Execute(connection, commandText, parameterList) /// <summary> /// 실행하기 /// </summary> /// <param name="connection">연결</param> /// <param name="commandText">명령 텍스트</param> /// <param name="parameterList">매개 변수 리스트</param> /// <returns>처리 행 수</returns> public static int Execute(SQLiteConnection connection, string commandText, List<SQLiteParameter> parameterList = null) { using(SQLiteCommand command = GetCommand(connection)) { command.CommandText = commandText; if(parameterList != null) { foreach(SQLiteParameter parameter in parameterList) { command.Parameters.Add(parameter); } } int result = command.ExecuteNonQuery(); return result; } } #endregion #region 스칼라 실행하기 - ExecuteScalar(connection, commandText, parameterList) /// <summary> /// 스칼라 실행하기 /// </summary> /// <param name="connection">연결</param> /// <param name="commandText">명령 텍스트</param> /// <param name="parameterList">매개 변수 리스트</param> /// <returns>스칼라 값</returns> public static object ExecuteScalar(SQLiteConnection connection, string commandText, List<SQLiteParameter> parameterList = null) { using(SQLiteCommand command = GetCommand(connection)) { command.CommandText = commandText; if(parameterList != null) { foreach(SQLiteParameter parameter in parameterList) { command.Parameters.Add(parameter); } } object result = command.ExecuteScalar(); return result; } } #endregion #region 데이터 리더 실행하기 - ExecuteReader(connection, commandText, parameterList) /// <summary> /// 데이터 리더 실행하기 /// </summary> /// <param name="connection">연결</param> /// <param name="commandText">명령 텍스트</param> /// <param name="parameterList">매개 변수 리스트</param> /// <returns>데이터 리더</returns> public static SQLiteDataReader ExecuteDataReader(SQLiteConnection connection, string commandText, List<SQLiteParameter> parameterList = null) { using(SQLiteCommand command = GetCommand(connection)) { command.CommandText = commandText; if(parameterList != null) { foreach(SQLiteParameter parameter in parameterList) { command.Parameters.Add(parameter); } } SQLiteDataReader dataReader = command.ExecuteReader(); return dataReader; } } #endregion #region 데이터 테이블 구하기 - GetDataTable(connection, commandText, parameterList) /// <summary> /// 데이터 테이블 구하기 /// </summary> /// <param name="connection">연결</param> /// <param name="commandText">명령 텍스트</param> /// <param name="parameterList">매개 변수 리스트</param> /// <returns>데이터 테이블</returns> public static DataTable GetDataTable(SQLiteConnection connection, string commandText, List<SQLiteParameter> parameterList = null) { using(SQLiteCommand command = GetCommand(connection)) { command.CommandText = commandText; if(parameterList != null) { foreach(SQLiteParameter parameter in parameterList) { command.Parameters.Add(parameter); } } SQLiteDataAdapter dataAdapter = GetDataAdapter(); dataAdapter.SelectCommand = command; DataTable dataTable = new DataTable(); dataAdapter.Fill(dataTable); return dataTable; } } #endregion #region 문자열 리스트 구하기 - GetStringList(sourceArray) /// <summary> /// 문자열 리스트 구하기 /// </summary> /// <param name="sourceArray">소스 배열</param> /// <returns>문자열 리스트</returns> public static List<string> GetStringList(params string[] sourceArray) { List<string> list = new List<string>(); foreach(string source in sourceArray) { list.Add(source); } return list; } #endregion #region 문자열 리스트 구하기 - GetStringList(sourceTable, columnName) /// <summary> /// 리스트 구하기 /// </summary> /// <param name="sourceTable">소스 테이블</param> /// <param name="columnName">컬럼명</param> /// <returns>문자열 리스트</returns> public static List<string> GetStringList(DataTable sourceTable, string columnName) { List<string> list = new List<string>(); foreach(DataRow sourceRow in sourceTable.Rows) { list.Add(sourceRow[columnName].ToString()); } return list; } #endregion #region 피벗 합계 SQL 구하기 - GetPivotSummarySQL(tableName, rowColumnNameList, columnColumnName, columnColumnValueList, valueColumnName, orderByColumnNameList) /// <summary> /// 피벗 합계 SQL 구하기 /// </summary> /// <param name="tableName">테이블명</param> /// <param name="rowColumnNameList">행 컬럼명 리스트</param> /// <param name="columnColumnName">컬럼 컬럼명</param> /// <param name="columnColumnValueList">컬럼 컬럼 값 리스트</param> /// <param name="valueColumnName">값 컬럼명</param> /// <param name="orderByColumnNameList">정렬 컬럼명 리스트</param> /// <returns>피벗 SQL</returns> public static string GetPivotSummarySQL(string tableName, List<string> rowColumnNameList, string columnColumnName, List<string> columnColumnValueList, string valueColumnName, List<string> orderByColumnNameList) { string sql = @" SELECT [ROW_COLUMN_NAME_LIST] [COLUMN_COLUMN_VALUE_LIST] FROM [TABLE_NAME] GROUP BY [ROW_COLUMN_NAME_LIST] ORDER BY [ORDER_BY_COLUMN_NAME_LIST]; "; #region 행 컬럼명 문자열 빌더를 설정한다. StringBuilder rowColumnNameStringBuilder = new StringBuilder(); foreach(string column in rowColumnNameList) { rowColumnNameStringBuilder.AppendFormat("{0},", column); } #endregion #region 컬럼 컬럼 값 문자열 빌더를 설정한다. StringBuilder columnColumnValueStringBuilder = new StringBuilder(); foreach(string columnColumnValue in columnColumnValueList) { columnColumnValueStringBuilder.AppendFormat ( ",SUM(CASE WHEN [{0}] = '{1}' THEN {2} ELSE 0 END) AS [{1}]", columnColumnName, columnColumnValue, valueColumnName ); columnColumnValueStringBuilder.AppendLine(); } #endregion #region 정렬 컬럼명 문자열 빌더를 설정한다. StringBuilder orderByColumnNameStringBuilder = new StringBuilder(); foreach(string orderByColumnName in orderByColumnNameList) { orderByColumnNameStringBuilder.AppendFormat("{0},", orderByColumnName); } #endregion sql = sql.Replace("[ROW_COLUMN_NAME_LIST]" , rowColumnNameStringBuilder.ToString().TrimEnd(',') ); sql = sql.Replace("[COLUMN_COLUMN_VALUE_LIST]" , columnColumnValueStringBuilder.ToString() ); sql = sql.Replace("[TABLE_NAME]" , tableName ); sql = sql.Replace("[ORDER_BY_COLUMN_NAME_LIST]", orderByColumnNameStringBuilder.ToString().TrimEnd(',')); return sql; } #endregion #region 피벗 카운트 SQL 구하기 - GetPivotCountSQL(tableName, rowColumnNameList, columnColumnName, columnColumnValueList, orderByColumnNameList) /// <summary> /// 피벗 카운트 SQL 구하기 /// </summary> /// <param name="tableName">테이블명</param> /// <param name="rowColumnNameList">행 컬럼명 리스트</param> /// <param name="columnColumnName">컬럼 컬럼명</param> /// <param name="columnColumnValueTable">컬럼 컬럼 값 리스트</param> /// <param name="valueColumnName">값 컬럼명</param> /// <param name="valueFunctionName">값 함수명</param> /// <param name="orderByColumnNameList">정렬 컬럼명 리스트</param> /// <returns>피벗 SQL</returns> public static string GetPivotCountSQL(string tableName, List<string> rowColumnNameList, string columnColumnName, List<string> columnColumnValueList, List<string> orderByColumnNameList) { string sql = @" SELECT [ROW_COLUMN_NAME_LIST] [COLUMN_COLUMN_VALUE_LIST] FROM [TABLE_NAME] GROUP BY [ROW_COLUMN_NAME_LIST] ORDER BY [ORDER_BY_COLUMN_NAME_LIST]; "; #region 행 컬럼명 문자열 빌더를 설정한다. StringBuilder rowColumnNameStringBuilder = new StringBuilder(); foreach(string rowColumnName in rowColumnNameList) { rowColumnNameStringBuilder.AppendFormat("{0},", rowColumnName); } #endregion #region 컬럼 컬럼 값 문자열 빌더를 설정한다. StringBuilder columnColumnValueStringBuilder = new StringBuilder(); foreach(string columnColumnValue in columnColumnValueList) { columnColumnValueStringBuilder.AppendFormat(",SUM(CASE WHEN [{0}] = '{1}' THEN 1 ELSE 0 END) AS [{1}]", columnColumnName, columnColumnValue); columnColumnValueStringBuilder.AppendLine(); } #endregion #region 정렬 컬럼명 문자열 빌더를 설정한다. StringBuilder orderByColumnNameStringBuilder = new StringBuilder(); foreach(string orderByColumnName in orderByColumnNameList) { orderByColumnNameStringBuilder.AppendFormat("{0},", orderByColumnName); } #endregion sql = sql.Replace("[ROW_COLUMN_NAME_LIST]" , rowColumnNameStringBuilder.ToString().TrimEnd(',') ); sql = sql.Replace("[COLUMN_COLUMN_VALUE_LIST]" , columnColumnValueStringBuilder.ToString() ); sql = sql.Replace("[TABLE_NAME]" , tableName ); sql = sql.Replace("[ORDER_BY_COLUMN_NAME_LIST]", orderByColumnNameStringBuilder.ToString().TrimEnd(',')); return sql; } #endregion #region 피벗 평균 SQL 구하기 - GetPivotAverageSQL(summaryTableName, countTableName, rowColumnNameList, columnColumnValueList, orderByColumnNameList) /// <summary> /// 피벗 평균 SQL 구하기 /// </summary> /// <param name="summaryTableName">합계 테이블명</param> /// <param name="countTableName">카운트 테이블명</param> /// <param name="rowColumnNameList">행 컬럼명 리스트</param> /// <param name="columnColumnValueList">컬럼 컬럼 값 리스트</param> /// <param name="orderByColumnNameList">정렬 컬럼명 리스트</param> /// <returns>피벗 평균 SQL</returns> public static string GetPivotAverageSQL(string summaryTableName, string countTableName, List<string> rowColumnNameList, List<string> columnColumnValueList, List<string> orderByColumnNameList) { string sql = @" SELECT [ROW_COLUMN_NAME_LIST] [COLUMN_COLUMN_VALUE_LIST] FROM [SUMMARY_TABLE_NAME] A INNER JOIN [COUNT_TABLE_NAME] B ON [JOIN_CONDITION] ORDER BY [ORDER_BY_COLUMN_NAME_LIST]; "; #region 행 컬럼명 문자열 빌더를 설정한다. StringBuilder rowColumnNameStringBuilder = new StringBuilder(); foreach(string rowColumnName in rowColumnNameList) { rowColumnNameStringBuilder.AppendFormat("A.{0},", rowColumnName); } #endregion #region 컬럼 컬럼 값 문자열 빌더를 설정한다. StringBuilder columnColumnValueStringBuilder = new StringBuilder(); foreach(string columnColumnValue in columnColumnValueList) { columnColumnValueStringBuilder.AppendFormat(",CASE WHEN B.[{0}] <> 0 THEN A.[{0}] / B.[{0}] ELSE 0 END AS [{0}]", columnColumnValue); columnColumnValueStringBuilder.AppendLine(); } #endregion #region 조인 조건 문자열 빌더를 설정한다. StringBuilder joinConditionStringBuilder = new StringBuilder(); foreach(string rowColumnName in rowColumnNameList) { if(joinConditionStringBuilder.Length > 0) { joinConditionStringBuilder.Append(" AND "); } joinConditionStringBuilder.AppendFormat("B.{0} = A.{0}", rowColumnName); } #endregion #region 정렬 컬럼명 문자열 빌더를 설정한다. StringBuilder orderByColumnNameStringBuilder = new StringBuilder(); foreach(string orderByColumnName in orderByColumnNameList) { orderByColumnNameStringBuilder.AppendFormat("A.{0},", orderByColumnName); } #endregion sql = sql.Replace("[ROW_COLUMN_NAME_LIST]" , rowColumnNameStringBuilder.ToString().TrimEnd(',') ); sql = sql.Replace("[COLUMN_COLUMN_VALUE_LIST]" , columnColumnValueStringBuilder.ToString() ); sql = sql.Replace("[SUMMARY_TABLE_NAME]" , summaryTableName ); sql = sql.Replace("[COUNT_TABLE_NAME]" , countTableName ); sql = sql.Replace("[JOIN_CONDITION]" , joinConditionStringBuilder.ToString() ); sql = sql.Replace("[ORDER_BY_COLUMN_NAME_LIST]", orderByColumnNameStringBuilder.ToString().TrimEnd(',')); return sql; } #endregion } } |
