自动生成数据同步存储过程的存储过程

--开始
--create proc exec_copy
--as
--begin
--因为同步的表是内网表，基本不做业务逻辑处理，所以所有的表都没有标示列，故我也就没做标示列的处理
set nocount on
declare @tab_count int --存放用户表的数量
declare @col_count int --存放某个表中列的数量
declare @str_sql varchar(max)--存放动态生成的T-SQL语句
set @tab_count=(select count(object_id) from sys.objects where type_desc='USER_TABLE')--查询当前数据库中用户表的数量
--print @tab_count
declare @jishu_tab int
set @jishu_tab=1
declare @object_id int--存放某个表的object_id
while (@jishu_tab<=@tab_count)--循环数据库中的所有用户表
begin
set @object_id=(select top 1 object_id from sys.objects where type_desc='USER_TABLE' and name='表名')--根据指定表名，如果要同步一个数据库
　　　　　　--可以注释掉name=''把下面的取消注释
--object_id not in(select top(@jishu_tab-1) object_id from sys.objects where type_desc='USER_TABLE'))--查询第@jishu个表的object_id
declare @tab_name varchar(50);
set @tab_name=(select name from sys.objects where object_id=@object_id)--根据查询出的object_id查询表名
declare @schema varchar(50)--存放表架构
set @schema=(select b.name from sys.objects a
left join sys.schemas b on
a.schema_id=b.schema_id
where a.name=@tab_name)--根据表明查询表的架构
set @str_sql='create proc '+@tab_name+'_pro as begin /*set identity_insert  dataName.'+@tab_name+' on*/ delete dataName.'+@tab_name+' where '
declare @pk_col varchar(50)--存放主键列名
--创建一个游标
declare cur_my cursor scroll for select d.name from sys.objects as a
left join sys.indexes as b on a.object_id=b.object_id and b.is_primary_key=1
left join sys.sysindexkeys as c on b.index_id=c.indid and c.id=a.object_id
left join sys.syscolumns as d on c.colid=d.colid and d.id=a.object_id
where a.name=@tab_name
open cur_my--打开游标
fetch first from cur_my into @pk_col
--print @str_sql
set @str_sql=@str_sql+@pk_col+' in(select '+@pk_col+' from '+@schema+'.'+@tab_name+')'
while(@@fetch_status=0)
begin
fetch next from cur_my into @pk_col
if(@@fetch_status=0)
begin
set @str_sql=@str_sql+' and '+@pk_col+' in(select '+@pk_col+' from '+@schema+'.'+@tab_name+')'
end
end
--print @str_sql
close cur_my--关闭游标
deallocate cur_my--删除创建的游标
set @col_count=(select count(name) from sys.syscolumns where id=@object_id)
declare @jishu_col int
set @jishu_col=1
declare @all_name varchar(max)
while(@jishu_col<=@col_count)
begin
declare @col_name varchar(50)--存放查询出的列名
set @col_name=(select top 1 name from sys.syscolumns where id=@object_id and name not in ( select top (@jishu_col-1) name from sys.syscolumns where id=@object_id))
if(@jishu_col=1)
begin
--set @str_sql=@str_sql+@col_name+' in(select '+@col_name+' from '+@tab_name+')'
set @all_name=@col_name+','
set @str_sql=@str_sql+' insert into dataName.'+@tab_name+'(cols)'+' select cols from '+@schema+'.'+@tab_name
end

if(@jishu_col=@col_count)
begin
set @all_name=@all_name+@col_name
end
else
if(@jishu_col!=1)
set @all_name=@all_name+@col_name+','
set @jishu_col=@jishu_col+1    --自增
end

set @str_sql=@str_sql+'/* set identity_insert dataName.'+@tab_name+' off*/ end'
set @str_sql=replace(@str_sql,'cols',@all_name)
set @str_sql=replace(@str_sql,'dataName','shenpan_text.'+@schema)
print @str_sql
set @jishu_tab=@jishu_tab+1--自增
break
end
set nocount off
--end
--结束