net embedded database

MySQL Database tool class--datatable batch join database (NET version), Mysqldbhelper General class want to be useful to everyone, the code is as follows:usingMySql.Data.MySqlClient;usingSystem;usingSystem.Collections.Generic;usingSystem.Configuration;usingSystem.Data;usingSystem.Linq;usingsystem.web;usingSystem.Text; Public classmysqldbhelper{#regionPrivate vari

; Sqlbulkcopy.bulkcopytimeout=bulkcopytimeout; for(inti =0; i ) {sqlbulkCopy.ColumnMappings.Add (dt. Columns[i]. ColumnName, dt. Columns[i]. ColumnName); } sqlbulkcopy.writetoserver (DT); Sqlbulkcopy.close ();//Close Connection return true; } } Catch(System.Exception ex) {Throwex; } } /// ///BULK INSERT Data/// /// Connection Database String

as an example) protected voidBtlogin_click (Objectsender, EventArgs e) {db db=NewDB (); stringstrUserName = This. Textusername. Text.trim ();//Gets the user name and password enteredstringstrpassword = This. Textpassword. Text.trim (); SqlDataReader Dr=db.redr ("SELECT * from UserInfo where username= '"+strusername+"' and password= '"+strpassword+"'");//Select Dr in the database. Read ();Dr Object read Data setif(Dr. HasRows) {session["usernam

, ODBC and DB2-CLI Template Library, a template library that manipulates relational databases in C + + compilation, where direct Oracle operations are performed primarily through the OCI interface provided by Oracle, Operation DB2 database is done via CLI interface, as for MS Database and some other databases, OTL only provides the way ODBC is operated. Of course, Oracle and DB2 can also be manipulated by O

, ODBC and DB2-CLI Template Library, a template library that manipulates relational databases in C + + compilation, where direct Oracle operations are performed primarily through the OCI interface provided by Oracle, Operation DB2 database is done via CLI interface, as for MS Database and some other databases, OTL only provides the way ODBC is operated. Of course, Oracle and DB2 can also be manipulated by O

Because of its competitive prices and ease of use, MySQL has gradually increased its market share. The open source code community has developed a database connector that can be used in. Net Framework (. NETFramework) to expand the scope of use of MySQL. Let's learn how to use MySQL in. Net applications. MySQL community has developed My Because of its competitive

Because of its competitive prices and ease of use, MySQL has gradually increased its market share. The open source code community has developed a database connector that can be used in. Net Framework (. NET Framework) to extend the scope of use of MySQL. Let's learn how to use MySQL in. Net applications.MySQL gradually

suitable for dynamic development of test data. It allows you to quickly evolve the model and database table structure. However, the disadvantage is that the existing data in the current database will be lost-so you do not want to use this method on the production database. It is usually an efficient way to develop applications to automatically generate databases

: To create a SqlDataReader, you must call the ExecuteReader method of the SqlCommand object instead of using the constructor directly. String str = "Data source=.;i Nitial Catalog=gridview; User Id=sa; password=111111 "; String sql = "SELECT * from UserName"; SqlConnection conn = new SqlConnection (str); Conn. Open (); SqlCommand comm = new SqlCommand (SQL, conn); DataSet ds = new DataSet (); SqlDataReader dr = Comm. ExecuteReader (); if (Dr. Read ()) { //The following two kinds of d

Preface:ASP. NET 2.0 is attracted by its powerful functions and ultra-high efficiency. The originally complicated process is simplified to untrustworthy and easy, according to Microsoft, the official version of VS2005 in December will bring us a stronger Storm. After gradually deepening ASP. NET 2.0, I wanted to share my learning problems and experiences with you. Disclaimer: All the demo examples in this a

SQL ServerOdbc Standard Security:"Driver={sql Server}; Server=aron1;database=pubs; Uid=sa; PWD=ASDASD; " Trusted Connection:"Driver={sql Server}; Server=aron1;database=pubs; Trusted_connection=yes; " Prompt for username and password:Oconn.properties ("Prompt") = adPromptAlwaysoConn.Open "Driver={sql Server}; Server=aron1;database=pubs; " OLE DB, OleDbConnection (

Zookeeper When learning VB. NET videos, several of them talk about the database design and connection of. NET. We are no stranger to database connection. We have been in touch with the redbooks and data center charging systems. However, in my impression, these knowledge about datab