欢迎您访问我爱IT技术网,今天小编为你分享的编程技术是:【如何用C#来部署数据库】,下面是详细的分享!
如何用C#来部署数据库
现在好多程序,都是与数据库相关的,因此在做安装的时候,部署数据库看似是一件很复杂的事情。其实就我个人而言,部署数据库是很简单,大致的思路如下:
1. 用本身的DBMS来产生数据库创建的SQL脚本;
2. 接下来就是写程序来执行SQL脚本,从而达到创建数据库的目的。
以下用一个举例来说明,数据库服务器用的是SQL Server。
首先要在数据库生成好的SQL脚本最前头,加入如下语句:
use master
GO
if exists (select * from sysdatabases where name='mytest')
drop database mytest
GO
create database mytest
GO
use mytest
GO
注:其中“mytest”是要创建的数据库名。
而程序的代码如下:
//---------------------------Create DB-------------------------------------
//-------------------------------------------------------------------------
//---File:frmCreateDB.cs
//---Description:The main form file to create database using specific SQL file
//---Author:Knight
//---Date:Mar.18, 2006
//-------------------------------------------------------------------------
//-------------------------{ Create DB }-----------------------------------
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
using System.IO;
namespace CreateDB
{
///<summary>
/// Summary description for frmCreateDB.
///</summary>
public class frmCreateDB : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox txtServerName;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox txtUserName;
private System.Windows.Forms.TextBox txtPassword;
private System.Windows.Forms.Button btnCreateDB;
///<summary>
/// Required designer variable.
///</summary>
private System.ComponentModel.Container components=null;
public frmCreateDB()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
///<summary>
/// Clean up any resources being used.
///</summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components !=null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
///<summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///</summary>
private void InitializeComponent()
{
this.label1=new System.Windows.Forms.Label();
this.txtServerName=new System.Windows.Forms.TextBox();
this.txtUserName=new System.Windows.Forms.TextBox();
this.label2=new System.Windows.Forms.Label();
this.txtPassword=new System.Windows.Forms.TextBox();
this.label3=new System.Windows.Forms.Label();
this.btnCreateDB=new System.Windows.Forms.Button();
this.SuspendLayout();
//
// label1
//
this.label1.AutoSize=true;
this.label1.Location=new System.Drawing.Point(32, 32);
this.label1.Name="label1";
this.label1.Size=new System.Drawing.Size(74, 16);
this.label1.TabIndex=0;
this.label1.Text="Server Name:";
//
// txtServerName
//
this.txtServerName.Location=new System.Drawing.Point(120, 32);
this.txtServerName.Name="txtServerName";
this.txtServerName.Size=new System.Drawing.Size(152, 20);
this.txtServerName.TabIndex=1;
this.txtServerName.Text="";
//
// txtUserName
//
this.txtUserName.Location=new System.Drawing.Point(120, 64);
this.txtUserName.Name="txtUserName";
this.txtUserName.Size=new System.Drawing.Size(152, 20);
this.txtUserName.TabIndex=3;
this.txtUserName.Text="";
//
// label2
//
this.label2.AutoSize=true;
this.label2.Location=new System.Drawing.Point(40, 64);
this.label2.Name="label2";
this.label2.Size=new System.Drawing.Size(64, 16);
this.label2.TabIndex=2;
this.label2.Text="User Name:";
//
// txtPassword
//
this.txtPassword.Location=new System.Drawing.Point(120, 96);
this.txtPassword.Name="txtPassword";
this.txtPassword.PasswordChar='*';
this.txtPassword.Size=new System.Drawing.Size(152, 20);
this.txtPassword.TabIndex=5;
this.txtPassword.Text="";
//
// label3
//
this.label3.AutoSize=true;
this.label3.Location=new System.Drawing.Point(48, 96);
this.label3.Name="label3";
this.label3.Size=new System.Drawing.Size(57, 16);
this.label3.TabIndex=4;
this.label3.Text="Password:";
//
// btnCreateDB
//
this.btnCreateDB.Location=new System.Drawing.Point(168, 136);
this.btnCreateDB.Name="btnCreateDB";
this.btnCreateDB.Size=new System.Drawing.Size(104, 23);
this.btnCreateDB.TabIndex=6;
this.btnCreateDB.Text="&Create DB";
this.btnCreateDB.Click +=new System.EventHandler(this.btnCreateDB_Click);
//
// frmCreateDB
//
this.AutoScaleBaseSize=new System.Drawing.Size(5, 13);
this.ClientSize=new System.Drawing.Size(306, 175);
this.Controls.Add(this.btnCreateDB);
this.Controls.Add(this.txtPassword);
this.Controls.Add(this.label3);
this.Controls.Add(this.txtUserName);
this.Controls.Add(this.label2);
this.Controls.Add(this.txtServerName);
this.Controls.Add(this.label1);
this.FormBorderStyle=System.Windows.Forms.FormBorderStyle.FixedSingle;
this.MaximizeBox=false;
this.Name="frmCreateDB";
this.StartPosition=System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text="Create DB";
this.ResumeLayout(false);
}
#endregion
///<summary>
/// The main entry point for the application.
///</summary>
[STAThread]
static void Main()
{
Application.Run(new frmCreateDB());
}
private void btnCreateDB_Click(object sender, System.EventArgs e)
{
SqlConnection sqlConn=new SqlConnection();
try
{
sqlComm.ExecuteNonQuery();
return true;
}
catch( SqlException sqlErr )
{
MessageBox.Show( sqlErr.Message );
}
catch
{
}
sqlComm.Dispose();
}
return true;
}
}
}
要注意的是在SQL脚本中的“\r\n”,在SQLCommand中是无法识别,因此要替换为空格;其次“GO” 在SQLCommand中也是无法识别,但为了使每条语句都执行,因此我在这里,用“;”来替换。
注:程序的位置和SQL脚本文件的位置为同一目录下,如果觉得不方便的话,可以在我的基础上再延伸。
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