通过T-SQL产生创建表的脚本
时间：2011-01-18 来源：Rock Wang
/* 生成建表脚本(V3.0) OK_008 2010-5-10 */
Create Proc [dbo].[usp_help_Table]
(
@objectList nvarchar(max)=null,
@generated_script nvarchar(max) out
)
--With ENCRYPTION
As
/* 参数说明：
@objectList 对象列表，对象之间使用","隔开
改存储过程生成的建表脚本，包含Column,Constraint,Index
*/
Set Nocount On
Declare @sql nvarchar(max),
@sql1 nvarchar(max),
@objectid int,
@id int,
@Rowcount int,
@ObjectName sysname,
@Enter nvarchar(2),
@Tab nvarchar(2)
Select @Enter=Char(13)+Char(10),
@Tab=Char(9)
Declare @Tmp Table(name sysname)
If @objectList>''
Begin
Set @sql='Select N'''+Replace(@objectList,',',''' Union All Select N''')+''''
Insert Into @Tmp (name) Exec(@sql)
Set @sql=null
Select @sql=Isnull(@sql+',','')+name
From @Tmp As a
Where Not Exists(Select 1 From sys.objects Where type='U' And name=a.name)
If @sql>''
Begin
Set @sql='发现无效的表名: '+@sql
Raiserror 50001 @sql
Return(1)
End
End
If object_id('tempdb..#Objects') Is Not Null
Drop Table #Objects
If object_id('tempdb..#Columns') Is Not Null
Drop Table #Columns
Create Table #Objects(id int Identity(1,1) Primary Key,object_id int,name sysname)
;With t As
(
Select Object_id,Convert(int,0) As LevelNo,name As object_name
From sys.objects a
Where Type='U' And is_ms_shipped=0 And Not Exists(Select 1 From sys.foreign_keys Where referenced_object_id=a.object_id)
Union All
Select a.referenced_object_id As Object_id,b.LevelNo+1 As LevelNo,c.name As object_name
From sys.foreign_keys a
Inner Join t b On b.object_id=a.parent_object_id
Inner Join sys.objects c On c.object_id=a.referenced_object_id And c.is_ms_shipped=0
)
Insert Into #Objects(object_id,name)
Select a.object_id,object_name
From t a
Where Not Exists(Select 1 From t Where object_id=a.object_id And LevelNo>a.LevelNo) And
Not Exists(Select 1 From sys.extended_properties Where major_id=a.object_id And minor_id=0 And class=1 And Name=N'microsoft_database_tools_support')
And (Exists(Select 1 From @Tmp Where name=a.object_name) Or Not Exists(Select 1 From @Tmp))
Group By object_id,object_name,LevelNo
Order By LevelNo Desc
Set @Rowcount=@@Rowcount
If @Rowcount=0
Begin
Raiserror 50001 N'没有可以生产脚本的表!'
Return(1)
End
--Column
Select a.object_id,
a.column_id As Seq,
Cast(1 As tinyint) As DefinitionType,
Quotename(a.name)+Char(32)+ c.name +
Case
When a.user_type_id In (231,239) Then '('+Case a.max_length When -1 Then 'Max' Else Rtrim(a.max_length/2) End +')'
When a.user_type_id In (62,165,167,173,175) Then '('+Case a.max_length When -1 Then 'Max' Else Rtrim(a.max_length) End+')'
When a.user_type_id In (106,108) Then '('+Rtrim(a.[precision])+','+Rtrim(a.scale)+')'
Else ''
End
+ Char(32)+
Case a.is_rowguidcol When 1 Then 'Rowguidcol ' Else '' End +
Case a.is_identity When 1 Then 'Identity('+Cast(d.seed_value As nvarchar(10))+','+Cast(d.increment_value As nvarchar(10))+') ' Else '' End+
Case a.is_nullable When 1 Then 'Null ' Else 'Not Null ' End+
Isnull('Constraint '+Quotename(e.name)+' Default('+e.definition+')','') As definition
Into #Columns
From sys.columns As a
Inner Join #Objects As b On b.object_id=a.object_id
Inner Join sys.types As c On c.user_type_id=a.user_type_id
Left Outer Join sys.identity_columns As d On d.object_id=a.object_id And d.column_id=a.column_id And a.is_identity=1
Left Outer Join sys.Default_constraints As e On e.object_id=a.default_object_id And e.parent_column_id=a.column_id
Create Nonclustered Index IX_#Columns_object_id On #Columns(object_id Asc)
--Constraint
Insert Into #Columns
Select a.parent_object_id As object_id,
Row_number() Over(Partition By a.parent_object_id Order By Case a.type When 'PK' Then 1 When 'C' Then 2 Else 3 End)As Seq,
2 As DefinitionType,
'Alter Table '+Quotename(object_name(a.parent_object_id)) +' Add Constraint '+Quotename(a.name)+
Case a.type
When 'PK' Then ' Primary Key '+Case When Exists(Select 1 From sys.indexes Where object_id=a.parent_object_id And is_primary_key=1 And type=1) Then N'Clustered ' Else N'Nonclustered ' End+
'('+Stuff((Select ','+Quotename(c1.Name)+Case a1.is_descending_key When 1 Then ' Desc' Else ' Asc' End
From sys.index_columns As a1
Inner Join sys.indexes As b1 On b1.object_id=a1.object_id And b1.index_id=a1.index_id And b1.is_primary_key=1
Inner Join sys.columns As c1 On c1.object_id=a1.object_id And c1.column_id=a1.column_id
Where a1.object_id=a.parent_object_id
For Xml Path('')
),1,1,'')+
')'
When 'F' Then ' Foreign Key ('+Stuff((Select ','+Quotename(b1.Name)
From sys.foreign_key_columns As a1
Inner Join sys.columns As b1 On b1.object_id=a1.parent_object_id And b1.column_id=a1.parent_column_id
Where a1.constraint_object_id=a.object_id
Order By a1.constraint_column_id
For Xml Path('')
),1,1,'')+
') References '+(Select Quotename(object_name(referenced_object_id)) From sys.foreign_keys Where object_id=a.object_id)+
' ('
+Stuff((Select ','+Quotename(b1.Name)
From sys.foreign_key_columns As a1
Inner Join sys.columns As b1 On b1.object_id=a1.referenced_object_id And b1.column_id=a1.referenced_column_id
Where a1.constraint_object_id=a.object_id
Order By a1.constraint_column_id
For Xml Path('')
),1,1,'')+
')'
When 'UQ' Then ' Unique'+(Select Case a1.type When 1 Then ' Clustered' Else ' Nonclustered' End
From sys.indexes As a1
Where a1.object_id=a.parent_object_id
And Exists(Select 1 From sys.key_constraints Where object_id=a.object_id And parent_object_id=a1.object_id And unique_index_id=a1.index_id)
)+
'('+Stuff((Select ','+Quotename(c1.Name)+Case a1.is_descending_key When 1 Then ' Desc' Else ' Asc' End
From sys.index_columns As a1
Inner Join sys.indexes As b1 On b1.object_id=a1.object_id And b1.index_id=a1.index_id And b1.is_unique_constraint=1
Inner Join sys.columns As c1 On c1.object_id=a1.object_id And c1.column_id=a1.column_id
Where a1.object_id=a.parent_object_id
And Exists(Select 1 From sys.key_constraints Where object_id=a.object_id And parent_object_id=a1.object_id And unique_index_id=a1.index_id)
For Xml Path('')
),1,1,'')+
')'
When 'C' Then ' Check' +(Select definition From sys.check_constraints Where object_id=a.object_id)
Else ''
End As definition
From sys.objects As a
Where a.type In('PK','F','C','UQ')
And Exists(Select 1 From #Objects Where object_id=a.parent_object_id)
--Index
Insert Into #Columns
Select a.object_id ,
a.index_id As Seq,
3 As DefinitionType,
'Create '+Case a.is_unique When 1 Then 'Unique ' Else '' End+
Case a.type When 1 Then 'Clustered ' Else 'Nonclustered ' End+
'Index '+Quotename(a.name)+' On '+Quotename(b.name)+
' ('+Stuff((Select ','+Quotename(b1.Name)+Case a1.is_descending_key When 1 Then ' Desc' Else ' Asc' End
From sys.index_columns As a1
Inner Join sys.columns As b1 On b1.object_id=a1.object_id And b1.column_id=a1.column_id
Where a1.object_id=a.object_id And a.index_id=a1.index_id And a1.is_included_column=0
For Xml Path('')
),1,1,'')+
')'+
Isnull(' Include('+Stuff((Select ','+Quotename(b1.Name)
From sys.index_columns As a1
Inner Join sys.columns As b1 On b1.object_id=a1.object_id And b1.column_id=a1.column_id
Where a1.object_id=a.object_id And a.index_id=a1.index_id And a1.is_included_column=1
For Xml Path('')
),1,1,'')+
')','')
As definition
From sys.indexes As a
Inner Join #Objects As b On b.object_id=a.object_id
Where a.type>0
And Not Exists(Select 1 From sys.key_constraints Where parent_object_id=a.object_id And unique_index_id=a.index_id)
--Print
/*
Print 'Use '+Quotename(db_name())+@Enter+'Go'+@Enter+'/* 创建表结构 Andy '+Convert(nvarchar(10),Getdate(),120)+'*/'+@Enter
Set @id=1
While @id<=@Rowcount
Begin
Select @objectid=object_id,@ObjectName=name From #Objects Where id=@id
Set @Sql=@Enter+'--('+Rtrim(@id)+'/'+Rtrim(@Rowcount)+') '+@ObjectName+@Enter+'If object_id('''+Quotename(@ObjectName)+''') Is Null'+@Enter+'Begin'+@Enter+@Tab+
'Create Table '+Quotename(@ObjectName)+@Enter+@Tab+'('+@Enter
Select @Sql=@Sql+@Tab+@Tab+definition+','+@Enter
From #Columns
Where object_id=@objectid
And DefinitionType=1
Group By Seq,definition
Order By Seq
Set @sql=Substring(@sql,1,Len(@sql)-3)+@Enter+@Tab+')'+@Enter
Select @Sql=@Sql+@Tab+definition+@Enter
From #Columns
Where object_id=@objectid
And DefinitionType>1
Group By DefinitionType,Seq,definition
Order By Seq
Print Substring(@sql,1,Len(@sql)-2)+@Enter+'End'
Set @id=@id+1
End
*/
--Modify Nr:20100510 Start
Declare @MaxRow int
if object_id('tempdb..#Print') Is Not Null
Drop Table #Print
Create Table #Print(Row int Identity(1,1) Primary Key,Sql nvarchar(4000),Sql1 nvarchar(4000))
Print 'Use '+Quotename(db_name())+@Enter+'Go'+@Enter+'/* 创建表结构 Andy '+Convert(nvarchar(10),Getdate(),120)+'*/'+@Enter
Set @id=1
While @id<=@Rowcount
Begin
Select @objectid=object_id,@ObjectName=name From #Objects Where id=@id
Insert Into #Print(Sql,Sql1)
Select @Enter+'--('+Rtrim(@id)+'/'+Rtrim(@Rowcount)+') '+@ObjectName+@Enter+'If object_id('''+Quotename(@ObjectName)+''') Is Null'+@Enter+'Begin'+@Enter+@Tab+
'Create Table '+Quotename(@ObjectName)+@Enter+@Tab+'('+@Enter,' If object_id('''+Quotename(@ObjectName)+''') Is Null '+@Enter+' Begin Create Table '+Quotename(@ObjectName)+@Enter+@Tab+'('+@Enter
Insert Into #Print(Sql,Sql1)
Select @Tab+@Tab+definition+','+@Enter,@Tab+@Tab+definition+','+@Enter
From #Columns
Where object_id=@objectid
And DefinitionType=1
Group By Seq,definition
Order By Seq
Set @MaxRow=Scope_identity()
Update #Print
Set Sql=Substring(sql,1,Len(sql)-3)+@Enter+@Tab+')'+@Enter,Sql1=Substring(sql1,1,Len(sql1)-3)+@Enter+@Tab+')'+@Enter
Where Row=@MaxRow
Insert Into #Print(Sql,Sql1)
Select @Tab+definition+@Enter,@Tab+definition+@Enter
From #Columns
Where object_id=@objectid
And DefinitionType>1
Group By DefinitionType,Seq,definition
Order By Seq
if @@ROWCOUNT >0
Set @MaxRow=Scope_identity()
Update #Print
Set Sql= Substring(Sql,1,Len(Sql)-2)+@Enter+'End',Sql1= Substring(Sql1,1,Len(Sql1)-2)+@Enter+'End'
Where Row=@MaxRow
Set @id=@id+1
End
set @generated_script='';
Set @id=1
While @id>0
Begin
Set @sql=''
set @sql1=''
Select @sql=sql,@sql1=Sql1 From #Print Where row=@id
If @sql>''
Begin
set @generated_script=@generated_script+@sql1;
Print @sql
Set @id=@id+1
end
Else
Set @id=0
End
--Modify Nr:20100510 End
--Print 'Go'
Drop Table #Columns
Drop Table #Objects
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