在项目中经常有大量数据信息保存到数据库，如只用一张表保存那肯定不现实，首选解决方案为按日期建立动态表来保存数据。在不改变保存方式的代码的情况下，用动态存储过程是首选，在sql server存储过程中进行日期计算，按日期建表效率最高，下面就公司项目的部分动态存储过程粘贴出来：
ALTER proc [dbo].[EventInsert]
@chrTagData varchar(50),--编号
@intEData int,@chrJZData varchar(50),@intDYData int,@intXHData int,@createdata datetime,@chrtype varchar(1) --查询条件
as
begin
declare @chrTitle varchar(1000)
declare @chrsql nvarchar(4000)
declare @chrdate varchar(50)
declare @chrMetabname varchar(50) --每日新建报警新表名
declare @chrSendtabname varchar(50) --每日新建消息弹出框新表名
declare @chrSockDatatabname varchar(50) --每日原始数据新表名
set @chrdate =replace(convert(varchar(10),getdate(),120),'-','')
set @chrMetabname='SocketMe'+@chrdate
set @chrSendtabname='MessSend'+@chrdate
set @chrSockDatatabname='SockData'+@chrdate
if isnull(@chrtype,'')=''
begin
return
end
select @chrTitle=CategoryTitle from EventCategory where CategoryID=@chrtype
----新建每日信息模拟表1
set @chrsql= '
if not exists(select 1 from sysobjects where name='''+@chrMetabname+''' and type=''U'')
begin
CREATE TABLE '+@chrMetabname+'(
SMeID int IDENTITY(1,1) primary key,tabname varchar(50),TagData varchar(50),TagDataMe varchar(500),Pcount int NULL,Content varchar(5000),UserID int NULL,JZData varchar(50),EData int,DYData int,XHData int,Type varchar(1),State varchar(1),IfClose varchar(1),CloseDate datetime,CreateDate datetime,)
end
'
--print @chrsql
exec(@chrsql)
--------新建信息模拟表2------------
set @chrsql= '
if not exists(select 1 from sysobjects where name='''+@chrSendtabname+''' and type=''U'')
begin
CREATE TABLE '+@chrSendtabname+'(
MessID int IDENTITY(1,TabName varchar(50),TabPrID int,MessTitle varchar(500),TagDataMe varchar(1000),Content varchar(2000),CreateDate datetime
)
end
'
--print @chrsql
exec(@chrsql)
-----模拟环境 判断符合条件的数据则插入----------------------
set @chrsql= '
if not exists(select 1 from '+@chrMetabname+' whereTagData='''+@chrTagData+''' and type='''+@chrtype+''' and IfClose=''0'')
begin
--插入表一
insert into '+@chrMetabname+' (tabname,TagData,TagDataMe,Content,JZData,EData,DYData,XHData,Type,IfClose,CreateDate,State)
--模拟数据
select '''+@chrMetabname+''','''+@chrTagData+''',dbo.funTagDataMeget_all('''+@chrTagData+'''),'''+@chrTitle+',位置:[''+dbo.funGetEvenAddget('''+@chrJZData+''')+'']'','''+@chrJZData+''','''+CAST(@intEData as varchar)+''','''+CAST(@intDYData as varchar)+''','''+CAST(@intXHData as varchar)+''','''+@chrtype+''',''0'',''0''
----dbo.funGetEvenAddget 为自定义函数
declare @intSMeID int
declare @chrtempdate varchar(50)
set @intSMeID =@@identity
delete '+@chrSendtabname+' whereTagData='''+@chrTagData+''' andtype='''+@chrtype+'''
---插入表二
insert into '+@chrSendtabname+' (TabName,TabPrID,MessTitle,CreateDate)
select '''+@chrMetabname+''',@intSMeID,dbo.funTagDataMeget_all('''+@chrTagData+''')+'''+@chrTitle+''',dbo.funTagDataMeget_all('''+@chrTagData+''')+'''+@chrTitle+',getdate()
end
'
print @chrsql
exec(@chrsql)
end
---根据实际业务进行逻辑处理后插入动态表
