原创 csharp: DataTable Rename ColumnName and remove Column

enum ChangeNume { /// <summary> /// 簡體 /// </summary> gbk=1, //

2020-06-29 00:59:50 2

原创 sql:SQL Server metadata queries

-- 2012 --https://technet.microsoft.com/zh-cn/library/ms186778(v=sql.110).aspx --對象目錄視圖 (Transact-SQL) select * from sy

2020-06-29 00:59:50 7

原创 csharp:asp.net Importing or Exporting Data from Worksheets using aspose cell

using System; using System.Data; using System.Configuration; using System.Collections; using System.Collections.Generic

2020-06-29 00:59:39

原创 csharp: Export DataSet into Excel and import all the Excel sheets to DataSet

/// <summary> /// Export DataSet into Excel /// </summary> /// <param name="sender"></param>

2020-02-23 10:10:07

原创 csharp:datagridview enter Half Width and Full Width characters

/// <summary> /// 全角 /// </summary> /// <param name="unicodeString"></param> /// <returns

2020-02-23 10:10:07

原创 csharp:SQLite and Access using C# code read data

SQLite sql script: CREATE TABLE BookKindList ( BookKindID INTEGER PRIMARY KEY AUTOINCREMENT, BookKindName varch

2020-02-23 10:10:07

原创 sql: Oracle 11g create table, function,trigger, sequence

--書藉位置Place目錄 drop table BookPlaceList; create table BookPlaceList ( BookPlaceID INT PRIMARY KEY, --NUMBER Book

2020-02-23 10:10:07

原创 Getting SQLite metadata with Csharp

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawin

2020-02-23 10:10:07

原创 sql: Oracle 11g create procedure

CREATE OR REPLACE PROCEDURE proc_Insert_BookKindList ( temTypeName nvarchar2, temParent int ) AS ncount number; begin

2020-02-23 10:10:07

原创 sql: postgreSQL sql script

--pg_catalog SELECT * from pg_class c,pg_attribute a,pg_type t where c.relname='BookKindList' and a.attnum>0 and a.attr

2020-02-23 10:10:07

原创 csharp: Oracle Metadata queries

數據類型表： TypeName ProviderDbType ColumnSize CreateFormat CreateParameters DataType BFILE 1 4294967296 BFILE

2020-02-23 10:10:07

原创 sql:MySql create FUNCTION,VIEW,PROCEDURE

use geovindu; #函數 DELIMITER $$ drop function if exists f_GetDepartmentName $$ CREATE function f_GetDepartmentName (

2020-02-23 10:10:07

原创 csharp: read excel using Aspose.Cells

/// <summary> /// /// </summary> /// <param name="strFileName"></param> /// <retur

2020-02-23 10:10:07

原创 sql:Mysql create view,function,procedure

use test; create database Liber; use Liber; #顯示數據庫 20150210 Geovin Du 塗聚文 SHOW DATABASES; drop table BookKindList;

2020-02-23 10:10:07

原创 csharp: Data binding in WPF DataGrid control

<Window x:Class="WpfProjectDemo.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

2020-02-23 10:10:07