Method 4 – Combine the LOOKUP and COUNTIF Functions to Extract Data from a List in Excel In the following dataset, we duplicated some names, so we’ll extract the unique values. Steps: Select cell D5. Enter the following formula in the cell: =LOOKUP(2,1/((COUNTIF($D$4:D4,$B$5...
TheCHOOSEfunction will return the value from the range of the list according to the random number. Method 3 – Combining INDEX, RAND, and RANK Functions to Randomly Select Multiple Values Steps: Insert a helper column next to the list column. Insert the following formula to generate some random...
List rows present in a table. Parameters 展開資料表 NameKeyRequiredTypeDescription File file True string Select an Excel file through File Browse. Table table True string Select a table from the drop-down. Filter Query $filter string An ODATA filter query to restrict the entries returned. ...
推荐DataReader 多表格导出方式(建议使用 Dapper ExecuteReader )using (var cnn = Connection) { cnn.Open(); var sheets = new Dictionary<string,object>(); sheets.Add("sheet1", cnn.ExecuteReader("select 1 id")); sheets.Add("sheet2", cnn.ExecuteReader("select 2 id")); MiniExcel.SaveAs("...
Excel does not provide functionality to create an Access database from Excel data. When you open an Excel workbook in Access (in the File Open dialog box, change the Files of Type list box to Microsoft Office Excel Files and select the file you want), Access creates ...
IWorksheetDataConnection IWorksheetFunction IWorksheets IWorksheetView IXmlDataBinding IXmlMap IXmlMaps IXmlNamespace IXmlNamespaces IXmlSchema IXmlSchemas IXPath Label Labels LeaderLines Legend LegendEntries LegendEntry LegendKey Line LinearGradient LineFormat Lines LinkFormat ListBox ListBoxes ListColumn ...
pddata=pd.read_excel(filename,header=0,engine="openpyxl").fillna('-')datalist=pddata.values.tolist()fordataindatalist:c.execute(sql,tuple(data))conn.commit()c.close() 基于pandas写入数据库,一定要使用sqlalchemy,操作比较简单,但效率较低。
" + "Data Source=" + path + ";" + ";Extended Properties=\"Excel 12.0;HDR=YES;IMEX=1\""; //读取文件 string sql_select = " SELECT * FROM [Sheet1$]"; using (OleDbConnection conn = new OleDbConnection(connString)) using (OleDbDataAdapter cmd = new OleDbDataAdapter(sql_select, conn))...
Select the column you want to total, then select an option from the drop-down list. In this case, we applied the SUM function to each column: You'll see that Excel created the following formula: =SUBTOTAL(109,[Midwest]). This is a SUBTOTAL function for SUM, and it is also a ...
selectList) 增加下拉列表 ExcelWriter addSelect(int x, int y, String... selectList) 增加下拉列表 ExcelWriter addValidationData(org.apache.poi.ss.usermodel.DataValidation dataValidation) 增加单元格控制,比如下拉列表、日期验证、数字范围验证等 ExcelWriter autoSizeColumn(int columnIndex) 设置某列...