sqlserver 存储过程,SQLServer编写存储过程小工具

SQLServer编写存储过程小工具 - 应用软件 - 电脑教程网

SQLServer编写存储过程小工具

日期:2006-07-02   荐:
  在开发数据库系统的过程中,经常要写很多的存储过程。为了统一格式和简化开发过程,我编写一些存储过程,用来自动生成存储过程。下面就为您简单介绍一下它们。其中一个用于生成Insert过程,另一个用于生成Update过程。       Sp_GenInsert     该过程运行后,它为给定的表生成一个完整的Insert过程。如果原来的表有标识列,您得将生成的过程中的SET IDNTITY_INSERT ON 语句手工删除。     语法如下     sp_GenInsert < Table Name >,< Stored Procedure Name >     以northwind 数据库为例     sp_GenInsert ’Employees’, ’INS_Employees’     最后会生成一个Insert存储过程。利用它,您可以作进一步的开发。       Sp_GenUpdate     它会为一个表生成update存储过程。语法如下:     sp_GenUpdate < Table Name >,< Primary Key >,< Stored Procedure Name >     以northwind 数据库为例     sp_GenUpdate ’Employees’,’EmployeeID’,’UPD_Employees’     运行后生成如下所示的存储过程:     Create Procedure UPD_Employees     @EmployeeID int     @LastName nvarchar(40) ,     @FirstName nvarchar(20) ,     @Title nvarchar(60) ,     @TitleofCourtesy nvarchar(50) ,     @BirthDate datetime ,     @HireDate datetime ,     @Address nvarchar(120) ,     @City nvarchar(30) ,     @Region nvarchar(30) ,     @PostalCode nvarchar(20) ,     @Country nvarchar(30) ,     @HomePhone nvarchar(48) ,     @Extension nvarchar(8) ,     @Phote image ,     @Notes ntext ,     @ReportsTo int ,     @PhotoPath nvarchar(510)     AS     UPDATE Employees     SET     LastName = @LastName,     FirstName = @FirstName,     Title = @Title,     TitleofCourtesy = @TitleofCourtesy,     BirthDate = @BirthDate,     HireDate = @HireDate,     Address = @Address,     City = @City,     Regin = @Regin,     PostalCode = @PostCode,     Country = @Country,     HomePhone = @HomePhone,     Extension = @Extension,     Photo = @Photo     Notes = @Notes,     ReportsTo = @ReportsTo,     PhotoPath = @PhotoPath     WHERE EmployeeID = @EmployeeID       使用以上的两个存储过程,节省了我不少时间。特别是在改变了表结构后,重新构造各个存储过程的过程中。您可以改写这两个程序,来自动生成别的存储过程。   以下是两个存储过程的源程序  /*==================================================================    语法: sp_GenInsert ,  以northwind 数据库为例  sp_GenInsert 'Employees', 'INS_Employees'    注释:如果您在Master系统数据库中创建该过程,那您就可以在您服务器上所有的数据库中使用该过程。    ==================================================================*/    CREATE procedure sp_GenInsert  @TableName varchar(130),  @ProcedureName varchar(130)  as  set nocount on    declare @maxcol int,  @TableID int    set @TableID = object_id(@TableName)    select @MaxCol = max(colorder)  from syscolumns  where id = @TableID    select 'Create Procedure ' rtrim(@ProcedureName) as type,0 as colorder into #TempProc  union  select convert(char(35),'@' syscolumns.name)   rtrim(systypes.name)   case when rtrim(systypes.name) in ('binary','char','nchar','nvarchar','varbinary','varchar') then '(' rtrim(convert(char(4),syscolumns.length)) ')'   when rtrim(systypes.name) not in ('binary','char','nchar','nvarchar','varbinary','varchar') then ' '  end   case when colorder < @maxcol then ','   when colorder = @maxcol then ' '  end  as type,  colorder  from syscolumns  join systypes on syscolumns.xtype = systypes.xtype  where id = @TableID and systypes.name 'sysname'  union  select 'AS',@maxcol 1 as colorder  union  select 'INSERT INTO ' @TableName,@maxcol 2 as colorder  union  select '(',@maxcol 3 as colorder  union  select syscolumns.name   case when colorder < @maxcol then ','   when colorder = @maxcol then ' '  end  as type,  colorder @maxcol 3 as colorder  from syscolumns  join systypes on syscolumns.xtype = systypes.xtype  where id = @TableID and systypes.name 'sysname'  union  select ')',(2 * @maxcol) 4 as colorder  union  select 'VALUES',(2 * @maxcol) 5 as colorder  union  select '(',(2 * @maxcol) 6 as colorder  union  select '@' syscolumns.name   case when colorder < @maxcol then ','   when colorder = @maxcol then ' '  end  as type,  colorder (2 * @maxcol 6) as colorder  from syscolumns  join systypes on syscolumns.xtype = systypes.xtype  where id = @TableID and systypes.name 'sysname'  union  select ')',(3 * @maxcol) 7 as colorder  order by colorder      select type from #tempproc order by colorder    drop table #tempproc   功能:为给定表创建Update存储过程  语法: sp_GenUpdate ,

,   以northwind 数据库为例  sp_GenUpdate 'Employees','EmployeeID','UPD_Employees'    注释:如果您在Master系统数据库中创建该过程,那您就可以在您服务器上所有的数据库中使用该过程。    ===========================================================*/  CREATE procedure sp_GenUpdate  @TableName varchar(130),  @PrimaryKey varchar(130),  @ProcedureName varchar(130)  as  set nocount on    declare @maxcol int,  @TableID int    set @TableID = object_id(@TableName)    select @MaxCol = max(colorder)  from syscolumns  where id = @TableID    select 'Create Procedure ' rtrim(@ProcedureName) as type,0 as colorder into #TempProc  union  select convert(char(35),'@' syscolumns.name)   rtrim(systypes.name)   case when rtrim(systypes.name) in ('binary','char','nchar','nvarchar','varbinary','varchar') then '(' rtrim(convert(char(4),syscolumns.length)) ')'   when rtrim(systypes.name) not in ('binary','char','nchar','nvarchar','varbinary','varchar') then ' '  end   case when colorder < @maxcol then ','   when colorder = @maxcol then ' '  end  as type,  colorder  from syscolumns  join systypes on syscolumns.xtype = systypes.xtype  where id = @TableID and systypes.name 'sysname'  union  select 'AS',@maxcol 1 as colorder  union  select 'UPDATE ' @TableName,@maxcol 2 as colorder  union  select 'SET',@maxcol 3 as colorder  union  select syscolumns.name ' = @' syscolumns.name   case when colorder < @maxcol then ','   when colorder = @maxcol then ' '  end  as type,  colorder @maxcol 3 as colorder  from syscolumns  join systypes on syscolumns.xtype = systypes.xtype  where id = @TableID and syscolumns.name @PrimaryKey and systypes.name 'sysname'  union  select 'WHERE ' @PrimaryKey ' = @' @PrimaryKey,(2 * @maxcol) 4 as colorder  order by colorder      select type from #tempproc order by colorder    drop table #tempproc  /*===============源程序结束==================*/

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