--测试脚本

--exec [p_compSPAndView] 'FAMS_PrePROD','FAMS_SIT'  

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE?proc

 [dbo].[p_compSPAndView] 

@db1

 sysname, --第一个库

@db2

 sysname --第二个库

as

exec('

select

 类型=case isnull(a.xtype,b.xtype) when ''V''

 then N''视图''

 else N''存储过程''

 end 

,匹配情况=case

when

 a.name is null then N''库

 ['+@db1+']

 中无''

when

 b.name is null then N''库

 ['+@db2+']

 中无''

else

 N''结构不同''

 end 

,对象名称=isnull(a.name,b.name),a.text

 as atext, b.text as btext

from(

select

 a.name,a.xtype,b.colid,b.text 

from

 ['+@db1+']..sysobjects

 a,['+@db1+']..syscomments

 b 

where

 a.id=b.id and a.xtype in(''V'',''P'')

 and a.status>=0 

)a

 full join( 

select

 a.name,a.xtype,b.colid,b.text 

from

 ['+@db2+']..sysobjects

 a,['+@db2+']..syscomments

 b 

where

 a.id=b.id and a.xtype in(''V'',''P'')

 and a.status>=0 

)b

 on a.name=b.name and a.xtype=b.xtype and a.colid=b.colid 

where

 a.name is null 

or

 b.name is null 

or

 isnull(a.text,'''')

 <>isnull(b.text,'''')

')

--group by a.name,b.name,a.xtype,b.xtype 

--order by 类型,匹配情况,对象名称

GO

--测试脚本

--exec p_comparestructure 'Inventory_SR08','Inventory_SR08_bk'

-- =============================================

-- Author:

-- Description:    <比较两个数据库的表结构差异并自动生成修改和插入表字段脚本>

--exec p_comparestructure 'Inventory_SR08','Inventory_SR08_bk'

-- =============================================

Create proc [dbo].[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

set @dbname1='['+@dbname1+']'

set @dbname2='['+@dbname2+']'

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 sql_variant,字段说明 sql_variant)

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 sql_variant,字段说明 sql_variant)

--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+'.dbo.sysobjects where xtype=''PK'' and parent_obj=a.id and name in (

SELECT name FROM '+@dbname1+'.dbo.sysindexes WHERE indid in(

SELECT indid FROM '+@dbname1+'.dbo.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+'.dbo.syscolumns a

left join '+@dbname1+'.dbo.systypes b on a.xtype=b.xusertype

inner join '+@dbname1+'.dbo.sysobjects d on a.id=d.id  and d.xtype=''U'' and  d.name<>''dtproperties''

left join '+@dbname1+'.dbo.syscomments e on a.cdefault=e.id

left join '+@dbname1+'.sys.extended_properties g on a.id=g.major_id and a.colid=g.minor_id

order by a.id,a.colorder')

--select * from csdntest.sys.extended_properties

--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+'.dbo.sysobjects where xtype=''PK'' and parent_obj=a.id and name in (

SELECT name FROM '+@dbname2+'.dbo.sysindexes WHERE indid in(

SELECT indid FROM '+@dbname2+'.dbo.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+'.dbo.syscolumns a

left join '+@dbname2+'.dbo.systypes b on a.xtype=b.xusertype

inner join '+@dbname2+'.dbo.sysobjects d on a.id=d.id  and d.xtype=''U'' and  d.name<>''dtproperties''

left join '+@dbname2+'.dbo.syscomments e on a.cdefault=e.id

left join '+@dbname2+'.sys.extended_properties g on a.id=g.major_id and a.colid=g.minor_id

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 @dbname1+'——缺少表：'+b.表名2

when b.表名2 is null and a.序号=1 then @dbname2+'——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

'/*'+@dbname1+'——['+b.表名2+'] 缺少字段：'+b.字段名+'*/alter table '+b.表名2+' drop column '+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) and a.类型='decimal' then

'/*'+@dbname2+'——['+a.表名1+'] 缺少字段：'+a.字段名+'*/ alter table '+a.表名1+' add '+a.字段名+' '

+a.类型+'('+ltrim(str(a.长度))+','+ltrim(str(isnull(a.小数位数,'')))+')'+(case when a.允许空=0 then ' not null' else ' null' end)

when b.字段名 is null and exists(select 1 from #tb2 where 表名2=a.表名1) and a.类型='nvarchar' then

'/*'+@dbname2+'——['+a.表名1+'] 缺少字段：'+a.字段名+'*/ alter table '+a.表名1+' add '+a.字段名+' '

+a.类型+'('+ltrim(str(a.长度))+')'+(case when a.允许空=0 then ' not null' else ' null' end)

when b.字段名 is null and exists(select 1 from #tb2 where 表名2=a.表名1) and a.类型 not in('nvarchar','decimal') then

'/*'+@dbname2+'——['+a.表名1+'] 缺少字段：'+a.字段名+'*/ alter table '+a.表名1+' add '+a.字段名+' '

+a.类型+(case when a.允许空=0 then ' not null' else ' null' end)

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 and a.类型='decimal' then

'/*字段类型不同*/ alter table '+a.表名1+' alter column '+a.字段名+' '+a.类型+'('+ltrim(str(a.长度))+','+ltrim(str(isnull(a.小数位数,'')))+')'+(case when a.允许空=0 then ' not null' else ' null' end)

when a.类型<>b.类型 and a.类型='nvarchar'  then

'/*字段类型不同*/ alter table '+a.表名1+' alter column '+a.字段名+' '+a.类型+'('+ltrim(str(a.长度))+')'+(case when a.允许空=0 then ' not null' else ' null' end)

when a.类型<>b.类型 and a.类型 not in('nvarchar','decimal')  then

'/*字段类型不同*/ alter table '+a.表名1+' alter column '+a.字段名+' '+a.类型+(case when a.允许空=0 then ' not null' else ' null' end)

when a.占用字节数<>b.占用字节数 then

'/*占用字节数*/ alter table '+a.表名1+' alter column '+a.字段名+' '+a.类型+'('+ltrim(str(a.长度))+')'+(case when a.允许空=0 then ' not null' else ' null' end)

when a.长度<>b.长度 then

'/*长度不同*/ alter table '+a.表名1+' alter column '+a.字段名+' '+a.类型+'('+ltrim(str(a.长度))+')'+(case when a.允许空=0 then ' not null' else ' null' end)

when a.小数位数<>b.小数位数 then

'--小数位数不同*/ alter table '+a.表名1+' alter column '+a.字段名+' '+a.类型+'('+ltrim(str(a.长度))+','+ltrim(str(isnull(a.小数位数,'')))+')'+(case when a.允许空=0 then ' not null' else ' null' end)

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*/ alter table '+a.表名1+' add default(0) for '+a.字段名+' with values'

--when isnull(a.字段说明,'')<>'' and isnull(b.字段说明,'')='' then

--'EXEC sys.sp_addextendedproperty @name=N'''+'MS_Description'+''', @value=N'''+a.字段说明--+''' , @level0type=N'''+'SCHEMA'+''',@level0name=N'''+'dbo'+''', @level1type=N'''+'TABLE'+''',@level1name=N'''+b.表名2+''', @level2type=N'''+'COLUMN'+''',@level2name=N'''+b.字段名+'''--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)