public static DataSet GetDataSet(string sql)
{}{
SqlDataAdapter sda = new SqlDataAdapter(sql, ConnectionString);
DataSet ds = new DataSet();
sda.Fill(ds);
if (ds != null)
return ds;
else
return null;
}
}
5.sql脚本
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Category]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Category]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Forms]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Forms]
GO
CREATE TABLE [dbo].[Category] (
[CategoryID] [int] IDENTITY (1, 1) NOT NULL ,
[CategoryName] [varchar] (20) COLLATE Chinese_PRC_CI_AS NULL ,
[FatherID] [int] NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[Forms] (
[FormID] [int] IDENTITY (1, 1) NOT NULL ,
[FormName] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[FormUrl] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[Form_category_id] [int] NULL ,
[target] [char] (10) COLLATE Chinese_PRC_CI_AS NULL
) ON [PRIMARY]
GO
CREATE FUNCTION IsLeaf (@cat_id int)
RETURNS int AS
BEGIN
declare @count int
select @count = (select count(*) from Category where FatherID=@cat_id)
if (@count=0)
return 1
return 0
END