我也知道“+”是表示连接,可是这段程序执行时好像是从这几个连接符中以一定的规则取出一个,具体怎么取,我不大清楚,也或者是我理解得不正确。完整的程序代码如下: SQL Server编写存储过程小工具 以下是两个存储过程的源程序 /*================================================================== 语法: sp_GenInsert <Table Name>,<Stored Procedure Name> 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
SQL Server编写存储过程小工具
以下是两个存储过程的源程序
/*================================================================== 语法: sp_GenInsert <Table Name>,<Stored Procedure Name>
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