-------------------获取当前数据库所有表的外键创建脚本、获取指定表的创建脚本,包括表和字段的属性、外键-----------------------

以下脚本会在Master数据库中创建2个扩展存储过程，用法如下：

EXEC sp_HelpForeign
EXEC sp_HelpTable 'dbo.AtableName'

本脚本仅适用于SQL2005，未严格测试，如有问题请提出或mail:xthmpro_cn AT sina.com.cn(把" AT "替换为"@")
转载请注明，并保持脚本完整。

USE [master]
GO

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*|<PRE>
****************************************************************************
 软件名称: May Flower Erp
 版权所有: (C) 2005-2006 May Flower ERP 开发组
 对象名称: sp_HelpForeign
 对象作者: lvqy
 创建日期: 2005-12-04
 修改记录:
 功能描述: 获取当前数据库所有表的外键创建脚本
----------------------------------------------------------------------------
 参数列表: 无参数
****************************************************************************
|</PRE>*/
CREATE PROCEDURE [dbo].[sp_HelpForeign]
AS
  SET NOCOUNT ON
  DECLARE @ConstID int, @i tinyint, @keyCnt tinyint, @TempletSQL nvarchar(400), @SQLScript nvarchar(500),
          @FColName sysname, @RColName sysname,
          @ForeignLine nvarchar(4000), @ReferencesLine nvarchar(4000), @ReferencesAction nvarchar(4000)
  DECLARE @ForeignkeyScript table(ScriptLine nvarchar(4000))
  DECLARE @ConstIDTable table(ConstID int)
  SELECT
    @FColName = '',
    @RColName = '',
    @TempletSQL =
      N'SELECT @eFColName = ''['' + col_name(FkeyID, Fkey%d) + '']'', @eRColName = ''['' + col_name(RkeyID, Rkey%d) + '']'' FROM sys.sysreferences WHERE ConstID = @ConstID'

  INSERT INTO @ConstIDTable
    SELECT ConstID FROM sys.sysreferences ORDER BY FKeyID

  WHILE EXISTS(SELECT * FROM @ConstIDTable)
  BEGIN
    SELECT TOP 1 @ConstID = ConstID FROM @ConstIDTable
    DELETE FROM @ConstIDTable WHERE ConstID = @ConstID

    INSERT INTO @ForeignkeyScript
      SELECT 'ALTER TABLE [dbo].[' + object_name(FKeyID) + '] WITH CHECK'
        FROM sys.sysreferences
      WHERE ConstID = @ConstID
    INSERT INTO @ForeignkeyScript(ScriptLine) VALUES('  ADD' + CHAR(13) + CHAR(10))

    SELECT @ForeignLine = '    CONSTRAINT [' + object_name(a.ConstID) + '] FOREIGN KEY(',
           @ReferencesLine = 'REFERENCES [dbo].[' + object_name(a.RKeyID) + '] (',
           @ReferencesAction = CASE b.Delete_Referential_Action WHEN 0 THEN N''
                                                                WHEN 1 THEN N'ON DELETE Cascade'
                                                                WHEN 2 THEN N'ON DELETE SET NULL'
                                                                WHEN 3 THEN N'ON DELETE SET DEFAULT'
                               END + ' ' +
                               CASE b.Delete_Referential_Action WHEN 0 THEN N''
                                                                WHEN 1 THEN N'ON UPDATE Cascade'
                                                                WHEN 2 THEN N'ON UPDATE SET NULL'
                                                                WHEN 3 THEN N'ON UPDATE SET DEFAULT'
                               END,
           @keyCnt = KeyCnt
      FROM sys.sysreferences a
        LEFT JOIN sys.foreign_keys b ON a.ConstID = b.Object_ID
    WHERE a.ConstID = @ConstID

    --取字段
    SET @i = 1
    WHILE @i <= @keyCnt
    BEGIN
      SET @SQLScript = REPLACE(@TempletSQL, '%d', CONVERT(varchar, @i))
      EXEC sp_executesql @stmt = @SQLScript, @params= N'@eFColName sysname output, @eRColName sysname output, @ConstID int',
                         @eFColName = @FColName output, @eRColName = @RColName output, @ConstID = @ConstID
      print @SQLScript
      SET @ForeignLine = @ForeignLine + CASE WHEN @i > 1 THEN ', ' ELSE '' END + @FColName
      SET @ReferencesLine = @ReferencesLine + CASE WHEN @i > 1 THEN ', ' ELSE '' END + @RColName
      SET @i = @i + 1
    END

    INSERT INTO @ForeignkeyScript(ScriptLine) VALUES(@ForeignLine + ') ' + @ReferencesLine + ')')
    IF @ReferencesAction <> ''
      INSERT INTO @ForeignkeyScript(ScriptLine) VALUES(@ReferencesAction)
    INSERT INTO @ForeignkeyScript(ScriptLine) VALUES('GO')
  END

  SELECT * FROM @ForeignkeyScript
  SET NOCOUNT OFF
GO

USE [master]
GO

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*|<PRE>
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*|<PRE>
****************************************************************************
 软件名称: May Flower Erp
 版权所有: (C) 2005-2006 May Flower ERP 开发组
 功能描述: 获取指定表的创建脚本,包括表和字段的属性、外键(注释掉的)
----------------------------------------------------------------------------
 参数列表:
        1: @TableName 需要创建脚本的表的名称
****************************************************************************
|</PRE>*/
CREATE PROCEDURE [dbo].[sp_HelpTable](@TableName sysname)
AS
  SET NOCOUNT ON
  DECLARE @ObjectID int
  DECLARE @TableScript table(Iden int IDENTITY(1, 1), ScriptLine nvarchar(4000))
  SET @ObjectID = object_id(@TableName)
  IF @ObjectID IS NULL OR OBJECTPROPERTY(@ObjectID, 'IsTable') = 0
  BEGIN
    RAISERROR('指定的对象不是表对象', 16, 1)
    RETURN
  END
  --获取表的创建脚本
  --插入表头
  INSERT INTO @TableScript(ScriptLine)
    SELECT N'CREATE TABLE [' + USER_NAME(OBJECTPROPERTY(@ObjectID, N'OwnerId')) + N'].[' + object_name(@ObjectID) + N']('

  --插入字段
  INSERT INTO @TableScript(ScriptLine)
    SELECT N'  [' + a.Name + N'] [' + b.name + N']' +
           CASE WHEN c.Object_id IS NOT NULL THEN N' IDENTITY(' + CONVERT(nvarchar, c.seed_value) + N', ' + CONVERT(nvarchar, c.increment_value) + N')'
                ELSE '' END +
           CASE WHEN b.xusertype IN (167, 175, 231, 239) THEN N'('+CONVERT(nvarchar, a.prec)  + N')'
                WHEN b.xusertype in (106, 108)           THEN N'('+CONVERT(nvarchar, a.xprec) + N', ' + CONVERT(nvarchar, a.xscale) + N')'
                ELSE '' END +
           CASE a.isnullable WHEN 1 THEN N'' ELSE N' NOT' END + N' NULL' +
           CASE WHEN d.Name IS NOT NULL THEN N' DEFAULT ' + d.Definition ELSE N'' END +
           N','
      FROM sys.syscolumns a
        LEFT JOIN sys.systypes b ON a.xusertype = b.xusertype
        LEFT JOIN sys.identity_columns c ON c.Object_id = a.ID AND c.Column_ID = a.ColID
        LEFT JOIN sys.default_constraints d ON d.Parent_Object_ID = a.ID AND d.Parent_column_ID = a.ColID
    WHERE a.[ID] = @ObjectID
    ORDER BY a.ColOrder

  --插入主键和索引
  DECLARE @IndexID int, @IndexScript nvarchar(4000)
  DECLARE IndexCursor CURSOR FOR
    SELECT b.Index_ID, N'  CONSTRAINT [' + a.Name + N'] ' +
           CASE a.Type WHEN 'PK' THEN N'PRIMARY KEY ' WHEN 'UQ' THEN N'UNIQUE ' END +
           CASE b.Type WHEN 1    THEN N'CLUSTERED'   WHEN 2     THEN N'NONCLUSTERED ' END + N'('
      FROM sys.key_constraints a
        LEFT JOIN sys.indexes b ON b.Object_ID = a.Parent_Object_ID AND b.index_id = a.unique_index_id
    WHERE a.Parent_Object_ID = @ObjectID
  OPEN IndexCursor
  FETCH NEXT FROM IndexCursor INTO @IndexID, @IndexScript
  WHILE @@FETCH_STATUS = 0
  BEGIN
    SELECT @IndexScript = @IndexScript + N'[' + INDEX_COL(object_name(@ObjectID), 2 , 1) + N'],'
      FROM sys.index_columns
    WHERE Object_ID = @ObjectID
      AND Index_ID = 2
   
    SET @IndexScript = LEFT(@IndexScript, LEN(@IndexScript) -1) + N'),'
    INSERT INTO @TableScript(ScriptLine) VALUES(@IndexScript)
    FETCH NEXT FROM IndexCursor INTO @IndexID, @IndexScript
  END
  Close IndexCursor
  DEALLOCATE IndexCursor

  insert into @TableScript(ScriptLine) VALUES(')')
  select * from @TableScript