我发现了一个远程简单的方法来完成这个在PHP中的一个自定义编写的存储过程,只需要在您想克隆的数据库中存在一点帮助(对我来说,它总是AccountDatabase_1
)。将表名称传递给存储过程,并返回需要运行的脚本以创建它(我们将在第二个数据库上执行该脚本)。对于视图,创建脚本实际上存储在Information_Schema.Views
表中,因此您只需从中拖出视图名称和创建代码即可轻松创建克隆。
存储过程GenerateScript()
USE [SOURCE_DATABASE_NAME]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER Procedure [dbo].[GenerateScript]
(
@tableName varchar(100)
)
as
If exists (Select * from Information_Schema.COLUMNS where Table_Name= @tableName)
Begin
declare @sql varchar(8000)
declare @table varchar(100)
declare @cols table (datatype varchar(50))
insert into @cols values('bit')
insert into @cols values('binary')
insert into @cols values('bigint')
insert into @cols values('int')
insert into @cols values('float')
insert into @cols values('datetime')
insert into @cols values('text')
insert into @cols values('image')
insert into @cols values('uniqueidentifier')
insert into @cols values('smalldatetime')
insert into @cols values('tinyint')
insert into @cols values('smallint')
insert into @cols values('sql_variant')
set @sql=''
Select
@[email protected]+
case when charindex('(',@sql,1)<=0 then '(' else '' end +Column_Name + ' ' +Data_Type +
case when Column_name='id' then ' IDENTITY ' else '' end +
case when Data_Type in (Select datatype from @cols) then '' else '(' end+
case when data_type in ('real','money','decimal','numeric') then cast(isnull(numeric_precision,'') as varchar)+','+
case when data_type in ('real','money','decimal','numeric') then cast(isnull(Numeric_Scale,'') as varchar) end
when data_type in ('char','nvarchar','nchar') then cast(isnull(Character_Maximum_Length,'') as varchar) else '' end+
case when data_type ='varchar' and Character_Maximum_Length<0 then 'max' else '' end+
case when data_type ='varchar' and Character_Maximum_Length>=0 then cast(isnull(Character_Maximum_Length,'') as varchar) else '' end+
case when Data_Type in (Select datatype from @cols)then '' else ')' end+
case when Is_Nullable='No ' then ' Not null ' else ' null ' end +
case when Column_Default is not null then 'DEFAULT ' + Column_Default else '' end + ','
from
Information_Schema.COLUMNS where [email protected]
select
@table= 'Create table ' + table_Name
from
Information_Schema.COLUMNS
where
[email protected]
select @[email protected] + substring(@sql,1,len(@sql)-1) +')'
select @sql as DDL
End
Else
Select 'The table '[email protected] + ' does not exist'
PHP
function cloneAccountDatabase($new_id){
$srcDatabaseName = "AccountDatabase_1"; //The Database we are cloning
$sourceConn = openDB($srcDatabaseName);
$destDatabaseName = "AccountDatabase_".(int)$new_id;
$destConn = openDB($destDatabaseName);
//ENSURE DATABASE EXISTS, OR CREATE IT
if ($destConn==null){
odbc_exec($sourceConn, "CREATE database " . $destDatabaseName);
$destConn = openDB($destDatabaseName);
}
//BUILD ARRAY OF TABLE NAMES
$tables = array();
$q = odbc_exec($sourceConn, "SELECT name FROM sys.Tables");
while (odbc_fetch_row($q))
$tables[]=odbc_result($q,"name");
//CREATE TABLES
foreach ($tables as $tableName){
$q=odbc_exec($sourceConn, "exec GenerateScript '$tableName';");
odbc_fetch_row($q);
$sql = odbc_result($q, 'ddl');
$q=odbc_exec($destConn, $sql);
}
//BUILD ARRAY OF VIEW NAMES AND CREATE
$q = odbc_exec($sourceConn, "SELECT * FROM Information_Schema.Views");
while (odbc_fetch_row($q)){
$view=odbc_result($q,"table_name");
$sql = odbc_result($q, "view_definition");
odbc_exec($destConn, $sql);
}
return(true);
}
汤姆,非常感谢这个职位。虽然没有透明的方法将该代码转换为PHP(它使用某种我没有看到代码的Visual Studio DLL),但它确实让我的搜索引擎朝着正确的方向前进。这导致我上面的解决方案。为你的努力+1! – Dutchie432