不知道这个对你有没有用？
/*--比较两个数据库的表结构差异 --*/
/*--调用示例 exec p_comparestructure "xzkh_model","xzkh_new"
--*/ if exists (select * from dbo.sysobjects where id = object_id(N"[dbo].[p_comparestructure]") and OBJECTPROPERTY(id, N"IsProcedure") = 1)
drop procedure [dbo].[p_comparestructure]
GO create proc p_comparestructure
@dbname1 varchar(250), --要比较的数据库名1
@dbname2 varchar(250) --要比较的数据库名2
as
create table #tb1(表名1 varchar(250),字段名 varchar(250),序号 int,标识 bit,主键 bit,类型 varchar(250),
占用字节数 int,长度 int,小数位数 int,允许空 bit,默认值 varchar(500),字段说明 varchar(500)) create table #tb2(表名2 varchar(250),字段名 varchar(250),序号 int,标识 bit,主键 bit,类型 varchar(250),
占用字节数 int,长度 int,小数位数 int,允许空 bit,默认值 varchar(500),字段说明 varchar(500)) --得到数据库1的结构
exec("insert into #tb1 SELECT
表名=d.name,字段名=a.name,序号=a.colid,
标识=case when a.status=0x80 then 1 else 0 end,
主键=case when exists(SELECT 1 FROM "+@dbname1+"..sysobjects where xtype=""PK"" and name in (
SELECT name FROM "+@dbname1+"..sysindexes WHERE indid in(
SELECT indid FROM "+@dbname1+"..sysindexkeys WHERE id = a.id AND colid=a.colid
))) then 1 else 0 end,
类型=b.name, 占用字节数=a.length,长度=a.prec,小数位数=a.scale, 允许空=a.isnullable,
默认值=isnull(e.text,""""""),字段说明=isnull(g.[value],"""""")
FROM "+@dbname1+"..syscolumns a
left join "+@dbname1+"..systypes b on a.xtype=b.xusertype
inner join "+@dbname1+"..sysobjects d on a.id=d.id and d.xtype=""U"" and d.name<>""dtproperties""
left join "+@dbname1+"..syscomments e on a.cdefault=e.id
left join "+@dbname1+"..sysproperties g on a.id=g.id and a.colid=g.smallid
order by a.id,a.colorder") --得到数据库2的结构
exec("insert into #tb2 SELECT
表名=d.name,字段名=a.name,序号=a.colid,
标识=case when a.status=0x80 then 1 else 0 end,
主键=case when exists(SELECT 1 FROM "+@dbname2+"..sysobjects where xtype=""PK"" and name in (
SELECT name FROM "+@dbname2+"..sysindexes WHERE indid in(
SELECT indid FROM "+@dbname2+"..sysindexkeys WHERE id = a.id AND colid=a.colid
))) then 1 else 0 end,
类型=b.name, 占用字节数=a.length,长度=a.prec,小数位数=a.scale, 允许空=a.isnullable,
默认值=isnull(e.text,""""""),字段说明=isnull(g.[value],"""""")
FROM "+@dbname2+"..syscolumns a
left join "+@dbname2+"..systypes b on a.xtype=b.xusertype
inner join "+@dbname2+"..sysobjects d on a.id=d.id and d.xtype=""U"" and d.name<>""dtproperties""
left join "+@dbname2+"..syscomments e on a.cdefault=e.id
left join "+@dbname2+"..sysproperties g on a.id=g.id and a.colid=g.smallid
order by a.id,a.colorder")
--and not exists(select 1 from #tb2 where 表名2=a.表名1)
select 比较结果=case when a.表名1 is null and b.序号=1 then "库1缺少表："+b.表名2
when b.表名2 is null and a.序号=1 then "库2缺少表:"+a.表名1
when a.字段名 is null and exists(select 1 from #tb1 where 表名1=b.表名2) then "库1 ["+b.表名2+"] 缺少字 段："+b.字段名
when b.字段名 is null and exists(select 1 from #tb2 where 表名2=a.表名1) then "库2 ["+a.表名1+"] 缺少字段："+a.字段名
when a.标识<>b.标识 then "标识不同"
when a.主键<>b.主键 then "主键设置不同"
when a.类型<>b.类型 then "字段类型不同"
when a.占用字节数<>b.占用字节数 then "占用字节数"
when a.长度<>b.长度 then "长度不同"
when a.小数位数<>b.小数位数 then "小数位数不同"
when a.允许空<>b.允许空 then "是否允许空不同"
when a.默认值<>b.默认值 then "默认值不同"
when a.字段说明<>b.字段说明 then "字段说明不同"
else "" end,
*
from #tb1 a
full join #tb2 b on a.表名1=b.表名2 and a.字段名=b.字段名
where a.表名1 is null or a.字段名 is null or b.表名2 is null or b.字段名 is null
or a.标识<>b.标识 or a.主键<>b.主键 or a.类型<>b.类型
or a.占用字节数<>b.占用字节数 or a.长度<>b.长度 or a.小数位数<>b.小数位数
or a.允许空<>b.允许空 or a.默认值<>b.默认值 or a.字段说明<>b.字段说明
order by isnull(a.表名1,b.表名2),isnull(a.序号,b.序号)--isnull(a.字段名,b.字段名)
go
/*--比较两个数据库的表结构差异 --*/
/*--调用示例 exec p_comparestructure "xzkh_model","xzkh_new"
--*/ if exists (select * from dbo.sysobjects where id = object_id(N"[dbo].[p_comparestructure]") and OBJECTPROPERTY(id, N"IsProcedure") = 1)
drop procedure [dbo].[p_comparestructure]
GO create proc p_comparestructure
@dbname1 varchar(250), --要比较的数据库名1
@dbname2 varchar(250) --要比较的数据库名2
as
create table #tb1(表名1 varchar(250),字段名 varchar(250),序号 int,标识 bit,主键 bit,类型 varchar(250),
占用字节数 int,长度 int,小数位数 int,允许空 bit,默认值 varchar(500),字段说明 varchar(500)) create table #tb2(表名2 varchar(250),字段名 varchar(250),序号 int,标识 bit,主键 bit,类型 varchar(250),
占用字节数 int,长度 int,小数位数 int,允许空 bit,默认值 varchar(500),字段说明 varchar(500)) --得到数据库1的结构
exec("insert into #tb1 SELECT
表名=d.name,字段名=a.name,序号=a.colid,
标识=case when a.status=0x80 then 1 else 0 end,
主键=case when exists(SELECT 1 FROM "+@dbname1+"..sysobjects where xtype=""PK"" and name in (
SELECT name FROM "+@dbname1+"..sysindexes WHERE indid in(
SELECT indid FROM "+@dbname1+"..sysindexkeys WHERE id = a.id AND colid=a.colid
))) then 1 else 0 end,
类型=b.name, 占用字节数=a.length,长度=a.prec,小数位数=a.scale, 允许空=a.isnullable,
默认值=isnull(e.text,""""""),字段说明=isnull(g.[value],"""""")
FROM "+@dbname1+"..syscolumns a
left join "+@dbname1+"..systypes b on a.xtype=b.xusertype
inner join "+@dbname1+"..sysobjects d on a.id=d.id and d.xtype=""U"" and d.name<>""dtproperties""
left join "+@dbname1+"..syscomments e on a.cdefault=e.id
left join "+@dbname1+"..sysproperties g on a.id=g.id and a.colid=g.smallid
order by a.id,a.colorder") --得到数据库2的结构
exec("insert into #tb2 SELECT
表名=d.name,字段名=a.name,序号=a.colid,
标识=case when a.status=0x80 then 1 else 0 end,
主键=case when exists(SELECT 1 FROM "+@dbname2+"..sysobjects where xtype=""PK"" and name in (
SELECT name FROM "+@dbname2+"..sysindexes WHERE indid in(
SELECT indid FROM "+@dbname2+"..sysindexkeys WHERE id = a.id AND colid=a.colid
))) then 1 else 0 end,
类型=b.name, 占用字节数=a.length,长度=a.prec,小数位数=a.scale, 允许空=a.isnullable,
默认值=isnull(e.text,""""""),字段说明=isnull(g.[value],"""""")
FROM "+@dbname2+"..syscolumns a
left join "+@dbname2+"..systypes b on a.xtype=b.xusertype
inner join "+@dbname2+"..sysobjects d on a.id=d.id and d.xtype=""U"" and d.name<>""dtproperties""
left join "+@dbname2+"..syscomments e on a.cdefault=e.id
left join "+@dbname2+"..sysproperties g on a.id=g.id and a.colid=g.smallid
order by a.id,a.colorder")
--and not exists(select 1 from #tb2 where 表名2=a.表名1)
select 比较结果=case when a.表名1 is null and b.序号=1 then "库1缺少表："+b.表名2
when b.表名2 is null and a.序号=1 then "库2缺少表:"+a.表名1
when a.字段名 is null and exists(select 1 from #tb1 where 表名1=b.表名2) then "库1 ["+b.表名2+"] 缺少字 段："+b.字段名
when b.字段名 is null and exists(select 1 from #tb2 where 表名2=a.表名1) then "库2 ["+a.表名1+"] 缺少字段："+a.字段名
when a.标识<>b.标识 then "标识不同"
when a.主键<>b.主键 then "主键设置不同"
when a.类型<>b.类型 then "字段类型不同"
when a.占用字节数<>b.占用字节数 then "占用字节数"
when a.长度<>b.长度 then "长度不同"
when a.小数位数<>b.小数位数 then "小数位数不同"
when a.允许空<>b.允许空 then "是否允许空不同"
when a.默认值<>b.默认值 then "默认值不同"
when a.字段说明<>b.字段说明 then "字段说明不同"
else "" end,
*
from #tb1 a
full join #tb2 b on a.表名1=b.表名2 and a.字段名=b.字段名
where a.表名1 is null or a.字段名 is null or b.表名2 is null or b.字段名 is null
or a.标识<>b.标识 or a.主键<>b.主键 or a.类型<>b.类型
or a.占用字节数<>b.占用字节数 or a.长度<>b.长度 or a.小数位数<>b.小数位数
or a.允许空<>b.允许空 or a.默认值<>b.默认值 or a.字段说明<>b.字段说明
order by isnull(a.表名1,b.表名2),isnull(a.序号,b.序号)--isnull(a.字段名,b.字段名)
go
2.打开TOOLS菜单下的Compare User Objects
3.点Target Session，登陆数据库B
4.执行Compare
5.返回的是所有不同的对象以及更新语句
1、对需要比较的表进行分析（可全表可抽样，自选）,否则统计信息不准；
2、通过dba_tab_col_statistics表的column_name字段进行比较
select tz.table_name ,tz.column_name from dba_tab_col_statistics tz
WHERE tz.owner = 'BSS' AND TZ.TABLE_NAME LIKE 'BSS_%'
and (TZ.TABLE_NAME ,TZ.COLUMN_NAME) not in(
select TZT.TABLE_NAME ,TZT.COLUMN_NAME
from dba_tab_col_statistics@tz_bsstzt tzt
WHERE tzt.owner = 'BSS' AND TZT.TABLE_NAME LIKE 'BSS_%')