excel macro database query

versions of the Hdr=yes represent the first line is the title, not the data;Const string Cmdtext = "Provider=microsoft.ace.oledb.12.0;data source={0};" Extended properties= ' Excel 12.0; Hdr=yes; Imex=1 ' "; System.Data.DataTable dt = null;Establish a connectionOleDbConnection conn = new OleDbConnection (string. Format (Cmdtext, FILEURL));Try{Open connectionIF (Conn. State = = Connectionstate.broken | | Conn. state = = connectionstate.closed){Conn.

The following code imports all excle data from the C:\cs\ folder into the SQL databaseDeclare @query VARCHAR (1000)DECLARE @max1 intDECLARE @count1 intDECLARE @filename varchar (100)Set @count1 =0CREATE TABLE #x (name varchar (200))Insert #x exec (' Master.dbo.xp_cmdshell ' dir c:\cs\*.xls/b ')Delete from #x where name is nullSelect IDENTITY (int,1,1) as ID, name into #y from #xdrop table #xSet @max1 = (select MAX (ID) from #y)While @count1 BeginSet @

Label:How to manipulate Excel. ――poi-apache. jxl-.First step: How to use POI to manipulate Excel@Test Public voidCreatexls () throws exception{//declaring a working bookHssfworkbook WB =NewHssfworkbook (); //Declaration TableHssfsheet sheet = Wb.createsheet ("first Table"); //declaration LinesHssfrow row = Sheet.createrow (7); //declaring ColumnsHssfcell cel = Row.createcell (3); //Write DataCel.setcellvalu

-The tools neededMySQL DatabaseConnection Database module MySQL Basic package: http://blog.csdn.net/zzwwjjdj1/article/details/51991348Auto-run module Node-schedule basic use: http://blog.csdn.net/zzwwjjdj1/article/details/51898257Generate Excel Table Node-xlsxSend mail Nodemailer basic use: http://blog.csdn.net/zzwwjjdj1/article/details/51878392Async Process Control Module Async BASIC use: http://blog.csdn.

/// ///query an Excel spreadsheet to add to a dataset/// /// Server Path /// Table name PublicDataSet Execleds (stringFilenameurl,stringtable) { stringstrconn ="provider=microsoft.jet.oledb.4.0;"+"Data source="+ Filenameurl +"; Extended properties= ' Excel 8.0; Hdr=yes; Imex=1 '"; OleDbConnection Conn=NewOleDbConnection (

1. Pre-standard Excel format for easy access to Excel data2. Avoid looping nesting as much as possible3. If there is a requirement to get the data back from the database and compare it with the data in Excel, you should get it back as much as possible and compare it with the comparison, rather than loop fetch, to estab

query statement can export data to an Excel file * */public class Resultsettoexcel {/** * Write Excel Operation * * @param filename * filename, but does not need To suffix * @param coloumitems * Field name, which is the name of each column in the table * @param SQL * Database quer