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动态创建SQL Server数据库、表、存储过程-ASP教程,数据库相关
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下面是利用sql语句创建数据库、表、存储过程、视图、索引、规则、修改表、查看数据等的方法。所要增加的控件如下:

imports system.data
imports system.data.sqlclient

public class form1
  inherits system.windows.forms.form
  private connectionstring as string = "data source=.;initial catalog=;user id=sa;password=;"
  private reader as sqldatareader = nothing
  private conn as sqlconnection = nothing
  private cmd as sqlcommand = nothing
  private altertablebtn as system.windows.forms.button
  private sql as string = nothing
  private createothersbtn as system.windows.forms.button

#region " windows 窗体设计器生成的代码 "
  窗体重写处置以清理组件列表。
  protected overloads overrides sub dispose(byval disposing as boolean)
    if disposing then
      if not (components is nothing) then
        components.dispose()
      end if
    end if
    mybase.dispose(disposing)
  end sub
  public sub new()
    mybase.new()
    initializecomponent()
  end sub
  private components as system.componentmodel.icontainer
  friend withevents datagrid1 as system.windows.forms.datagrid
  friend withevents createdbbtn as system.windows.forms.button
  friend withevents createtablebtn as system.windows.forms.button
  friend withevents createspbtn as system.windows.forms.button
  friend withevents createviewbtn as system.windows.forms.button
  friend withevents btnaltertable as system.windows.forms.button
  friend withevents btncreateothers as system.windows.forms.button
  friend withevents btndroptable as system.windows.forms.button
  friend withevents btnviewdata as system.windows.forms.button
  friend withevents btnviewsp as system.windows.forms.button
  friend withevents btnviewview as system.windows.forms.button
  <system.diagnostics.debuggerstepthrough()> private sub initializecomponent()
    me.createdbbtn = new system.windows.forms.button()
    me.createtablebtn = new system.windows.forms.button()
    me.createspbtn = new system.windows.forms.button()
    me.createviewbtn = new system.windows.forms.button()
    me.btnaltertable = new system.windows.forms.button()
    me.btncreateothers = new system.windows.forms.button()
    me.btndroptable = new system.windows.forms.button()
    me.btnviewdata = new system.windows.forms.button()
    me.btnviewsp = new system.windows.forms.button()
    me.btnviewview = new system.windows.forms.button()
    me.datagrid1 = new system.windows.forms.datagrid()
    ctype(me.datagrid1, system.componentmodel.isupportinitialize).begininit()
    me.suspendlayout()
   
    createdbbtn
   
    me.createdbbtn.location = new system.drawing.point(19, 9)
    me.createdbbtn.name = "createdbbtn"
    me.createdbbtn.size = new system.drawing.size(104, 23)
    me.createdbbtn.tabindex = 0
    me.createdbbtn.text = "创建数据库"
   
    createtablebtn
   
    me.createtablebtn.location = new system.drawing.point(139, 9)
    me.createtablebtn.name = "createtablebtn"
    me.createtablebtn.tabindex = 1
    me.createtablebtn.text = "创建表"
   
    createspbtn
   
    me.createspbtn.location = new system.drawing.point(230, 9)
    me.createspbtn.name = "createspbtn"
    me.createspbtn.size = new system.drawing.size(104, 23)
    me.createspbtn.tabindex = 2
    me.createspbtn.text = "创建存储过程"
   
    createviewbtn
   
    me.createviewbtn.location = new system.drawing.point(350, 9)
    me.createviewbtn.name = "createviewbtn"
    me.createviewbtn.tabindex = 3
    me.createviewbtn.text = "创建视图"
   
    btnaltertable
   
    me.btnaltertable.location = new system.drawing.point(441, 9)
    me.btnaltertable.name = "btnaltertable"
    me.btnaltertable.tabindex = 4
    me.btnaltertable.text = "修改表"
   
    btncreateothers
   
    me.btncreateothers.location = new system.drawing.point(17, 43)
    me.btncreateothers.name = "btncreateothers"
    me.btncreateothers.size = new system.drawing.size(104, 23)
    me.btncreateothers.tabindex = 5
    me.btncreateothers.text = "创建规则和索引"
   
    btndroptable
   
    me.btndroptable.location = new system.drawing.point(138, 43)
    me.btndroptable.name = "btndroptable"
    me.btndroptable.tabindex = 6
    me.btndroptable.text = "删除表"
   
    btnviewdata
   
    me.btnviewdata.location = new system.drawing.point(351, 43)
    me.btnviewdata.name = "btnviewdata"
    me.btnviewdata.tabindex = 7
    me.btnviewdata.text = "查看数据"
   
    btnviewsp
   
    me.btnviewsp.location = new system.drawing.point(230, 43)
    me.btnviewsp.name = "btnviewsp"
    me.btnviewsp.size = new system.drawing.size(104, 23)
    me.btnviewsp.tabindex = 8
    me.btnviewsp.text = "查看存储过程"
   
    btnviewview
   
    me.btnviewview.location = new system.drawing.point(443, 43)
    me.btnviewview.name = "btnviewview"
    me.btnviewview.tabindex = 9
    me.btnviewview.text = "查看视图"
   
    datagrid1
   
    me.datagrid1.datamember = ""
    me.datagrid1.headerforecolor = system.drawing.systemcolors.controltext
    me.datagrid1.location = new system.drawing.point(20, 76)
    me.datagrid1.name = "datagrid1"
    me.datagrid1.size = new system.drawing.size(500, 183)
    me.datagrid1.tabindex = 10
   
    form1
   
    me.autoscalebasesize = new system.drawing.size(5, 13)
    me.clientsize = new system.drawing.size(538, 281)
    me.controls.addrange(new system.windows.forms.control() {me.datagrid1, me.btnviewview, _
              me.btnviewsp, me.btnviewdata, me.btndroptable, me.btncreateothers, me.btnaltertable, _
              me.createviewbtn, me.createspbtn, me.createtablebtn, me.createdbbtn})
    me.name = "form1"
    me.text = "动态创建sql server数据库、表、存储过程等架构信息"
    ctype(me.datagrid1, system.componentmodel.isupportinitialize).endinit()
    me.resumelayout(false)

  end sub

#end region

  创建数据库
  private sub createdbbtn_click(byval sender as system.object, byval e as system.eventargs) _
    handles createdbbtn.click
    conn = new sqlconnection(connectionstring)
    打开连接
    if conn.state <> connectionstate.open then
      conn.open()
    end if
    mydatabase为数据库名称
    dim sql as string = "create database mydatabase on primary (name=mydatabase_data, filename = " + _
        "d:\mydatabase.mdf, size=3," + "maxsize=5, filegrowth=10%) log on" + "(name=mydatabase_log, " + _
        "filename=d:\mydatabase.ldf,size=3," + "maxsize=20,filegrowth=1)"
    cmd = new sqlcommand(sql, conn)
    try
      cmd.executenonquery()
    catch ae as sqlexception
      messagebox.show(ae.message.tostring())
    end try
  end sub
  创建表
  private sub createtablebtn_click(byval sender as system.object, byval e as system.eventargs) _
    handles createtablebtn.click
    conn = new sqlconnection(connectionstring)
    打开连接
    if conn.state = connectionstate.open then
      conn.close()
    end if
    connectionstring = "data source=.;initial catalog=mydatabase;user id=sa;password=;"
    conn.connectionstring = connectionstring
    conn.open()
    sql = "create table mytable" + "(myid integer constraint pkeymyid primary key," + _
      "myname char(50) not null, myaddress char(255), myvalues float)"
    cmd = new sqlcommand(sql, conn)
    try
      cmd.executenonquery()
      添加纪录
      sql = "insert into mytable(myid, myname, myaddress, myvalues) " + _
        "values (1001, _【孟宪会之精彩世界】之一, http://xml.sz.luohuedu.net/, 100 ) "
      cmd = new sqlcommand(sql, conn)
      cmd.executenonquery()
      sql = "insert into mytable(myid, myname, myaddress, myvalues) " + _
        "values (1002, 【孟宪会之精彩世界】之二, http://www.erp800.com/net_lover/, 99) "
      cmd = new sqlcommand(sql, conn)
      cmd.executenonquery()
      sql = "insert into mytable(myid, myname, myaddress, myvalues) " + _
        "values (1003, 【孟宪会之精彩世界】之三, http://xml.sz.luohuedu.net/, 99) "
      cmd = new sqlcommand(sql, conn)
      cmd.executenonquery()
      sql = "insert into mytable(myid, myname, myaddress, myvalues) " + _
        "values (1004, 【孟宪会之精彩世界】之四, http://www.erp800.com/net_lover/, 100) "
      cmd = new sqlcommand(sql, conn)
      cmd.executenonquery()
    catch ae as sqlexception
      messagebox.show(ae.message.tostring())
    end try

  end sub
  创建存储过程
  private sub createspbtn_click(byval sender as system.object, byval e as system.eventargs) _
    handles createspbtn.click
    sql = "create procedure myproc as" + " select myname, myaddress from mytable go"
    executesqlstmt(sql)
  end sub
  创建视图
  private sub createviewbtn_click(byval sender as system.object, byval e as system.eventargs) _
    handles createviewbtn.click
    sql = "create view myview as select myname from mytable"
    executesqlstmt(sql)

  end sub
  修改表
  private sub btnaltertable_click(byval sender as system.object, byval e as system.eventargs) _
    handles btnaltertable.click
    sql = "alter table mytable add newcol datetime not null default (getdate())"
    executesqlstmt(sql)
  end sub
  创建规则和索引
  private sub btncreateothers_click(byval sender as system.object, byval e as system.eventargs) _
    handles btncreateothers.click
    sql = "create unique index " + "myidx on mytable(myname)"
    executesqlstmt(sql)

    sql = "create rule myrule " + "as @myvalues >= 90 and @myvalues < 9999"
    executesqlstmt(sql)
  end sub

  删除表
  private sub btndroptable_click(byval sender as system.object, byval e as system.eventargs) _
    handles btndroptable.click
    dim sql as string = "drop table mytable"
    executesqlstmt(sql)
  end sub
  浏览表数据
  private sub btnviewdata_click(byval sender as system.object, byval e as system.eventargs) _
    handles btnviewdata.click
    conn = new sqlconnection(connectionstring)
    if conn.state = connectionstate.open then
      conn.close()
    end if
    connectionstring = "data source=.;initial catalog=mydatabase;user id=sa;password=;"
    conn.connectionstring = connectionstring
    conn.open()
    dim da as new sqldataadapter("select * from mytable", conn)
    dim ds as new dataset("mytable")
    da.fill(ds, "mytable")
    datagrid1.datasource = ds.tables("mytable").defaultview
  end sub
  浏览存储过程
  private sub btnviewsp_click(byval sender as system.object, byval e as system.eventargs) _
    handles btnviewsp.click
    conn = new sqlconnection(connectionstring)
    if conn.state = connectionstate.open then
      conn.close()
    end if
    connectionstring = "data source=.;initial catalog=mydatabase;user id=sa;password=;"
    conn.connectionstring = connectionstring
    conn.open()
    dim da as new sqldataadapter("myproc", conn)
    dim ds as new dataset("sp")
    da.fill(ds, "sp")
    datagrid1.datasource = ds.defaultviewmanager
  end sub
  浏览视图
  private sub btnviewview_click(byval sender as system.object, byval e as system.eventargs) _
    handles btnviewview.click
    conn = new sqlconnection(connectionstring)
    if conn.state = connectionstate.open then
      conn.close()
    end if
    connectionstring = "data source=.;initial catalog=mydatabase;user id=sa;password=;"
    conn.connectionstring = connectionstring
    conn.open()
    dim da as new sqldataadapter("select * from myview", conn)
    dim ds as new dataset()
    da.fill(ds)
    datagrid1.datasource = ds.defaultviewmanager
  end sub

  private sub executesqlstmt(byval sql as string)
    conn = new sqlconnection(connectionstring)
    打开连接
    if conn.state = connectionstate.open then
      conn.close()
    end if
    connectionstring = "data source=.;initial catalog=mydatabase;user id=sa;password=;"
    conn.connectionstring = connectionstring
    conn.open()
    cmd = new sqlcommand(sql, conn)
    try
      cmd.executenonquery()
    catch ae as sqlexception
      messagebox.show(ae.message.tostring())
    end try
  end sub
end class


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