欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  数据库

MyGeneration获取所有ORACLE数据库的数据库名数据表命列名称

程序员文章站 2022-05-31 17:25:44
...

使用MyGeneration自动生成代码工具获取所有ORACLE数据库的数据库名数据表命列名称的具体操作步骤如下: 一、设置MyGeration的Default Settings中的数据库链接字符串Provider=OraOLEDB.Oracle.1;Password=myPassword;Persist Security Info=True;User ID=myID

使用MyGeneration自动生成代码工具获取所有ORACLE数据库的数据库名数据表命列名称的具体操作步骤如下:
一、设置MyGeration的Default Settings中的数据库链接字符串Provider=OraOLEDB.Oracle.1;Password=myPassword;Persist Security Info=True;User ID=myID;Data Source=myDataSource
二、复制下面代码到Interface Code选项卡的窗体中

public class GeneratedGui : DotNetScriptGui
{
public GeneratedGui(ZeusContext context) : base(context) {}

//-----------------------------------------
// The User Interface Entry Point
//-----------------------------------------
public override void Setup()
{
// ** UNCOMMENT CODE BELOW TO SEE UI **

//ui.Width = 100;
//ui.Height = 100;
//GuiLabel lblDemo = ui.AddLabel("lblDemo", "Demo", "Demo Tooltip");
//ui.ShowGui = true;

//GuiLabel lblPath;
//GuiTextBox txtNamespace;
GuiComboBox cmbDatabase;
GuiComboBox cmbTable;
GuiComboBox cmbColumn;

ui.Title = "读取所有数据表";
ui.Width = 450;
ui.Height = 500;
ui.BackColor = "wheat";
ui.ShowGui = true;
//添加窗体控件
ui.AddLabel("lblPath","输出路径: ","Select the output path.");
string sOutputPath = "";
if( input.Contains("defaultOutputPath"))
{
sOutputPath = input["defaultOutputPath"].ToString();
}
//输出文件保存路径
ui.AddTextBox("txtPath", sOutputPath, "Select the Output Path.");
ui.AddFilePicker("btnPath", "选择路径", "Select the Output Path.", "txtPath", true);
//程序命名空间
ui.AddLabel("lblNamespace", "命名空间: ", "Provide your objects namespace.");
ui.AddTextBox("txtNamespace", "ZTE.TMobileUpdate", "Provide your objects namespace.");
//数据库下拉框
ui.AddLabel("lblDatabases", "数据库选择:", "Select a database in the dropdown below.");
cmbDatabase=ui.AddComboBox("cmbDatabase", "Select a database.");
setupDatabaseDropdown(cmbDatabase);
cmbDatabase.AttachEvent("onchange","cmbDatabase_onchange");
//数据表选择
ui.AddLabel("lblTables", "数据表选择:", "Select tables from the listbox below.");
cmbTable = ui.AddComboBox("cmbTable", "Select tables:");
setupTablesDropdown(cmbDatabase,cmbTable);
cmbTable.AttachEvent("onchange","cmbTable_onchange");
//视图选择
ui.AddLabel("lblColumns", "字段选择:", "Select columns from the listbox below.");
cmbColumn = ui.AddComboBox("cmbColumn", "Select columns:");

}

public void setupDatabaseDropdown( GuiComboBox Databases )
{
try
{
if( MyMeta.IsConnected )
{
Databases.BindData( MyMeta.Databases );
//判断数据库列表是否为空
if( MyMeta.DefaultDatabase != null )
{
Databases.SelectedValue = MyMeta.DefaultDatabase.Alias;
bindTables( Databases.SelectedValue );
}
}
}
catch
{
}
}
public void setupTablesDropdown(GuiComboBox Databases,GuiComboBox Tables)
{
try
{
if( MyMeta.IsConnected )
{
//判断数据表列表是否为空
if((Databases.SelectedValue != null)&&(Tables.SelectedValue != null))
{
bindColumns(Databases.SelectedValue,Tables.SelectedValue);
}
}
}
catch
{
}
}

//数据库切换事件
public void cmbDatabase_onchange( GuiComboBox control )
{
GuiComboBox cmbDatabases = ui["cmbDatabase"] as GuiComboBox;
bindTables( cmbDatabases.SelectedText );
}
//数据表切换事件
public void cmbTable_onchange( GuiComboBox control )
{
GuiComboBox cmbDatabases = ui["cmbDatabase"] as GuiComboBox;
GuiComboBox cmbTable = ui["cmbTable"] as GuiComboBox;
bindColumns(cmbDatabases.SelectedText, cmbTable.SelectedText);
}

public void bindTables( string sDatabase )
{
try
{
IDatabase db = MyMeta.Databases[sDatabase];
GuiComboBox cmbTable = ui["cmbTable"] as GuiComboBox;
cmbTable.BindData( db.Tables );
}
catch
{
}
}

public void bindColumns( string sDatabase,string sTable )
{
try
{
IDatabase db = MyMeta.Databases[sDatabase];
ITable objTable=db.Tables[sTable];
GuiComboBox cmbColumn = ui["cmbColumn"] as GuiComboBox;
cmbColumn.BindData( objTable.Columns );
}
catch
{
}
}
}
三、复制下面代码到Template Code选项卡的窗体中
public class GeneratedTemplate : DotNetScriptTemplate
{
public GeneratedTemplate(ZeusContext context) : base(context) {}

//---------------------------------------------------
// Render() is where you want to write your logic
//---------------------------------------------------
public override void Render()
{
if(context.Objects.ContainsKey("DnpUtils"))
{
DnpUtils.SaveInputToCache(context);
}
string strFilenameBase = input["txtPath"].ToString();
string strNamespace = input["txtNamespace"].ToString();
string strDatabaseName = input["cmbDatabase"].ToString();
string strTableName = input["cmbTable"].ToString();
string strColumnName = input["cmbColumn"].ToString();

output.writeln("输出文件路径:"+strFilenameBase);
output.writeln("命名空间名称:"+strNamespace);
output.writeln("当前数据库名称:"+strDatabaseName);
output.writeln("当前数据表名称:"+strTableName);
output.writeln("当前选择列名称:"+strColumnName);
GetAllDataBaseName();
}
//输出所有的数据库名称
private void GetAllDataBaseName()
{
foreach( IDatabase d in MyMeta.Databases )
{
GetAllTablesName(d.Alias);
}
}
//输出所有的数据表名称
private void GetAllTablesName(string sDatabase)
{
IDatabase objDatabase = MyMeta.Databases[sDatabase];
output.writeln("当前数据库:"+sDatabase+"共有数据表总数:"+objDatabase.Tables.Count);
foreach( ITable t in objDatabase.Tables )
{
GetAllColumnsName(sDatabase,t.Alias);
}
}
private void GetAllColumnsName(string sDatabase,string sTable)
{
IDatabase objDatabase = MyMeta.Databases[sDatabase];
ITable objTable=objDatabase.Tables[sTable];
output.writeln("当前数据表:"+sTable+"共有数据列总数:"+objTable.Columns.Count);
foreach( IColumn c in objTable.Columns )
{
if( c.IsInPrimaryKey )
{
output.writeln("主键名称:"+c.Alias);
}
else
{
output.writeln("普通列名:"+c.Alias);
}
}
}

}
%>
四、点菜单上的运行箭头按钮,在Output选项卡的窗体中显示所有结果