Script SQL per "copiare" un database

Question

Voglio scrivere uno script SQL che copierà un database sullo stesso server. Potrei fare un backup/ripristino, ma penso che potrebbe essere più veloce semplicemente "copiare" in qualche modo. Qualcuno sa se questo è possibile? C'è un modo per scrivere uno script che sarà solo staccare, copiare il file su HD e quindi ricollegare entrambe le copie?

Answer 1

non sono sicuro, ma penso che si sta cercando in questo modo:

BACKUP DATABASE MyDB TO DISK='D:\MyDB.bak' 

Answer 2

Prova questa:

USE master 
GO 
-- the original database (use 'SET @DB = NULL' to disable backup) 
DECLARE @DB varchar(200) 
SET @DB = 'PcTopp' 
-- the backup filename 
DECLARE @BackupFile varchar(2000) 
SET @BackupFile = 'c:\pctopp\sqlserver\backup.dat' 
-- the new database name 
DECLARE @TestDB varchar(200) 
SET @TestDB = 'TestDB' 
-- the new database files without .mdf/.ldf 
DECLARE @RestoreFile varchar(2000) 
SET @RestoreFile = 'c:\pctopp\sqlserver\backup' 
-- **************************************************************** 
-- no change below this line 
-- **************************************************************** 

DECLARE @query varchar(2000) 
DECLARE @DataFile varchar(2000) 
SET @DataFile = @RestoreFile + '.mdf' 
DECLARE @LogFile varchar(2000) 
SET @LogFile = @RestoreFile + '.ldf' 
IF @DB IS NOT NULL 
BEGIN 
SET @query = 'BACKUP DATABASE ' + @DB + ' TO DISK = ' + QUOTENAME(@BackupFile, '''') 
EXEC (@query) 
END 
-- RESTORE FILELISTONLY FROM DISK = 'C:\temp\backup.dat' 
-- RESTORE HEADERONLY FROM DISK = 'C:\temp\backup.dat' 
-- RESTORE LABELONLY FROM DISK = 'C:\temp\backup.dat' 
-- RESTORE VERIFYONLY FROM DISK = 'C:\temp\backup.dat' 
IF EXISTS(SELECT * FROM sysdatabases WHERE name = @TestDB) 
BEGIN 
SET @query = 'DROP DATABASE ' + @TestDB 
EXEC (@query) 
END 
RESTORE HEADERONLY FROM DISK = @BackupFile 
DECLARE @File int 
SET @File = @@ROWCOUNT 
DECLARE @Data varchar(500) 
DECLARE @Log varchar(500) 
SET @query = 'RESTORE FILELISTONLY FROM DISK = ' + QUOTENAME(@BackupFile , '''') 
CREATE TABLE #restoretemp 
(
LogicalName varchar(500), 
PhysicalName varchar(500), 
type varchar(10), 
FilegroupName varchar(200), 
size int, 
maxsize bigint 
) 
INSERT #restoretemp EXEC (@query) 
SELECT @Data = LogicalName FROM #restoretemp WHERE type = 'D' 
SELECT @Log = LogicalName FROM #restoretemp WHERE type = 'L' 
PRINT @Data 
PRINT @Log 
TRUNCATE TABLE #restoretemp 
DROP TABLE #restoretemp 
IF @File > 0 
BEGIN 
SET @query = 'RESTORE DATABASE ' + @TestDB + ' FROM DISK = ' + QUOTENAME(@BackupFile, '''') + 
' WITH MOVE ' + QUOTENAME(@Data, '''') + ' TO ' + QUOTENAME(@DataFile, '''') + ', MOVE ' + 
QUOTENAME(@Log, '''') + ' TO ' + QUOTENAME(@LogFile, '''') + ', FILE = ' + CONVERT(varchar, @File) 
EXEC (@query) 
END 
GO 

preso da here

Answer 3

Esiste un modo scrivere uno script che si scollegherà, copierà il file sull'HD e poi ricollegherà entrambe le copie?

Sì. Per staccare e attaccare puoi usare sp_detach_db e sp_attach_db. Per copiare i file, è possibile utilizzare xp_cmdshell e xcopy.

Tuttavia, penso che l'approccio di backup e ripristino sia più semplice, dal momento che non richiede la copia dei file.

Answer 4

Ecco una versione del codice di Tony pubblicato che funziona in SQL Server 2005

USE master 
GO 
-- the original database (use 'SET @DB = NULL' to disable backup) 
DECLARE @DB varchar(200) 
SET @DB = 'GMSSDB' 
-- the backup filename 
DECLARE @BackupFile varchar(2000) 
SET @BackupFile = 'c:\temp\backup.dat' 
-- the new database name 
DECLARE @TestDB varchar(200) 
SET @TestDB = 'GMSSDBArchive' 
-- the new database files without .mdf/.ldf 
DECLARE @RestoreFile varchar(2000) 
SET @RestoreFile = 'c:\temp\backup' 
-- **************************************************************** 
-- no change below this line 
-- **************************************************************** 

DECLARE @query varchar(2000) 
DECLARE @DataFile varchar(2000) 
SET @DataFile = @RestoreFile + '.mdf' 
DECLARE @LogFile varchar(2000) 
SET @LogFile = @RestoreFile + '.ldf' 
IF @DB IS NOT NULL 
BEGIN 
SET @query = 'BACKUP DATABASE ' + @DB + ' TO DISK = ' + QUOTENAME(@BackupFile, '''') 
EXEC (@query) 
END 
-- RESTORE FILELISTONLY FROM DISK = 'C:\temp\backup.dat' 
-- RESTORE HEADERONLY FROM DISK = 'C:\temp\backup.dat' 
-- RESTORE LABELONLY FROM DISK = 'C:\temp\backup.dat' 
-- RESTORE VERIFYONLY FROM DISK = 'C:\temp\backup.dat' 
IF EXISTS(SELECT * FROM sysdatabases WHERE name = @TestDB) 
BEGIN 
SET @query = 'DROP DATABASE ' + @TestDB 
EXEC (@query) 
END 

CREATE TABLE #headeronly 
(
BackupName nvarchar(128) null, 
BackupDescription nvarchar(255) null, 
BackupType smallint, 
ExpirationDate datetime null, 
Compressed bit, 
Position smallint, 
DeviceType tinyint, 
UserName nvarchar(128), 
ServerName nvarchar(128), 
DatabaseName nvarchar(128), 
DatabaseVersion int, 
DatabaseCreationDate datetime, 
BackupSize numeric(20,0), 
FirstLSN numeric(25,0), 
LastLSN numeric(25,0), 
CheckpointLSN numeric(25,0), 
DatabaseBackupLSN numeric(25,0), 
BackupStartDate datetime, 
BackupFinishDate datetime, 
SortOrder smallint, 
CodePage smallint, 
UnicodeLocaleId int, 
UnicodeComparisonStyle int, 
CompatibilityLevel tinyint, 
SoftwareVendorId int, 
SoftwareVersionMajor int, 
SoftwareVersionMinor int, 
SoftwareVersionBuild int, 
MachineName nvarchar(128), 
Flags int, 
BindingID uniqueidentifier, 
RecoveryForkID uniqueidentifier, 
Collation nvarchar(128), 
FamilyGUID uniqueidentifier, 
HasBulkLoggedData bit, 
IsSnapshot bit, 
IsReadOnly bit, 
IsSingleUser bit, 
HasBackupChecksums bit, 
IsDamaged bit, 
BeginsLogChain bit, 
HasIncompleteMetaData bit, 
IsForceOffline bit, 
IsCopyOnly bit, 
FirstRecoveryForkID uniqueidentifier, 
ForkPointLSN numeric(25,0) NULL, 
RecoveryModel nvarchar(60), 
DifferentialBaseLSN numeric(25,0) NULL, 
DifferentialBaseGUID uniqueidentifier, 
BackupTypeDescription nvarchar(60), 
BackupSetGUID uniqueidentifier NULL 
) 
--RESTORE HEADERONLY FROM DISK = @BackupFile 
SET @query = 'RESTORE HEADERONLY FROM DISK = ' + QUOTENAME(@BackupFile, '''') 
INSERT #headeronly exec(@query) 


DECLARE @File int 
select @File = count(1) from #headeronly 
print CONVERT(varchar, @File) 
DROP TABLE #headeronly 


DECLARE @Data varchar(500) 
DECLARE @Log varchar(500) 
SET @query = 'RESTORE FILELISTONLY FROM DISK = ' + QUOTENAME(@BackupFile , '''') 

--RESTORE FILELISTONLY FROM DISK = 'c:\temp\backup.dat' 

CREATE TABLE #restoretemp 
(
LogicalName nvarchar(128), 
PhysicalName nvarchar(260), 
type char(1), 
FilegroupName nvarchar(128), 
size numeric(20,0), 
maxsize numeric(20,0), 
FileID bigint, 
CreateLSN numeric(25,0), 
DropLSN numeric(25,0)NULL, 
UniqueID uniqueidentifier, 
ReadOnlyLSN numeric(25,0) NULL, 
ReadWriteLSN numeric(25,0) NULL, 
BackupSizeInBytes bigint, 
SourceBlockSize int, 
FileGroupID int, 
LogGroupGUID uniqueidentifier NULL, 
DifferentialBaseLSN numeric(25,0) NULL, 
DifferentialBaseGUID uniqueidentifier, 
IsReadOnly bit, 

IsPresent bit 

) 
--select * from EXEC (@query) 
INSERT #restoretemp EXEC (@query) 
SELECT @Data = LogicalName FROM #restoretemp WHERE type = 'D' 
SELECT @Log = LogicalName FROM #restoretemp WHERE type = 'L' 
PRINT @Data 
PRINT @Log 
TRUNCATE TABLE #restoretemp 
DROP TABLE #restoretemp 
print CONVERT(varchar, @File) 
IF @File > 0 
BEGIN 

SET @query = 'RESTORE DATABASE ' + @TestDB + ' FROM DISK = ' + QUOTENAME(@BackupFile, '''') + 
' WITH MOVE ' + QUOTENAME(@Data, '''') + ' TO ' + QUOTENAME(@DataFile, '''') + ', MOVE ' + 
QUOTENAME(@Log, '''') + ' TO ' + QUOTENAME(@LogFile, '''') + ', FILE = ' + CONVERT(varchar, @File) 
print 'starting restore' 
EXEC (@query) 
print 'finished restore' 
END 
GO 

Answer 5

@Tony il Leone: Hi - Ho sperimentato alcuni problemi con lo script, così mi si avvicinò con un ibrido di lo script e questo post: link

USE master; 
GO 
-- the original database (use 'SET @DB = NULL' to disable backup) 
DECLARE @SourceDatabaseName varchar(200) 
DECLARE @SourceDatabaseLogicalName varchar(200) 
DECLARE @SourceDatabaseLogicalNameForLog varchar(200) 
DECLARE @query varchar(2000) 
DECLARE @DataFile varchar(2000) 
DECLARE @LogFile varchar(2000) 
DECLARE @BackupFile varchar(2000) 
DECLARE @TargetDatabaseName varchar(200) 
DECLARE @TargetDatbaseFolder varchar(2000) 

-- **************************************************************** 

SET @SourceDatabaseName = '[Source.DB]'     -- Name of the source database 
SET @SourceDatabaseLogicalName = 'Source_DB'    -- Logical name of the DB (check DB properties/Files tab) 
SET @SourceDatabaseLogicalNameForLog = 'Source_DB_log' -- Logical name of the DB (check DB properties/Files tab) 
SET @BackupFile = 'C:\Temp\backup.dat'         -- FileName of the backup file 
SET @TargetDatabaseName = 'TargetDBName'      -- Name of the target database 
SET @TargetDatbaseFolder = 'C:\Temp\' 

-- **************************************************************** 

SET @DataFile = @TargetDatbaseFolder + @TargetDatabaseName + '.mdf'; 
SET @LogFile = @TargetDatbaseFolder + @TargetDatabaseName + '.ldf'; 

-- Backup the @SourceDatabase to @BackupFile location 
IF @SourceDatabaseName IS NOT NULL 
BEGIN 
SET @query = 'BACKUP DATABASE ' + @SourceDatabaseName + ' TO DISK = ' + QUOTENAME(@BackupFile,'''') 
PRINT 'Executing query : ' + @query; 
EXEC (@query) 
END 
PRINT 'OK!'; 

-- Drop @TargetDatabaseName if exists 
IF EXISTS(SELECT * FROM sysdatabases WHERE name = @TargetDatabaseName) 
BEGIN 
SET @query = 'DROP DATABASE ' + @TargetDatabaseName 
PRINT 'Executing query : ' + @query; 
EXEC (@query) 
END 
PRINT 'OK!' 

-- Restore database from @BackupFile into @DataFile and @LogFile 
SET @query = 'RESTORE DATABASE ' + @TargetDatabaseName + ' FROM DISK = ' + QUOTENAME(@BackupFile,'''') 
SET @query = @query + ' WITH MOVE ' + QUOTENAME(@SourceDatabaseLogicalName,'''') + ' TO ' + QUOTENAME(@DataFile ,'''') 
SET @query = @query + ' , MOVE ' + QUOTENAME(@SourceDatabaseLogicalNameForLog,'''') + ' TO ' + QUOTENAME(@LogFile,'''') 
PRINT 'Executing query : ' + @query 
EXEC (@query) 
PRINT 'OK!' 

Answer 6

Fonte per il script that copies a database.

USE master; 

DECLARE 
    @SourceDatabaseName AS SYSNAME = '<SourceDB>', 
    @TargetDatabaseName AS SYSNAME = '<TargetDB>' 



-- ============================================ 
-- Define path where backup will be saved 
-- ============================================ 
IF NOT EXISTS (SELECT 1 FROM sys.databases WHERE name = @SourceDatabaseName) 
    RAISERROR ('Variable @SourceDatabaseName is not set correctly !', 20, 1) WITH LOG  

DECLARE @SourceBackupFilePath varchar(2000) 
SELECT @SourceBackupFilePath = BMF.physical_device_name 
FROM 
    msdb.dbo.backupset B 
    JOIN msdb.dbo.backupmediafamily BMF ON B.media_set_id = BMF.media_set_id 
WHERE B.database_name = @SourceDatabaseName 
ORDER BY B.backup_finish_date DESC 

SET @SourceBackupFilePath = REPLACE(@SourceBackupFilePath, '.bak', '_clone.bak') 



-- ============================================ 
-- Backup source database 
-- ============================================ 
DECLARE @Sql NVARCHAR(MAX) 
SET @Sql = 'BACKUP DATABASE @SourceDatabaseName TO DISK = ''@SourceBackupFilePath''' 
SET @Sql = REPLACE(@Sql, '@SourceDatabaseName', @SourceDatabaseName) 
SET @Sql = REPLACE(@Sql, '@SourceBackupFilePath', @SourceBackupFilePath) 
SELECT 'Performing backup...', @Sql as ExecutedSql 
EXEC (@Sql) 



-- ============================================ 
-- Automatically compose database files (.mdf and .ldf) paths 
-- ============================================ 
DECLARE 
      @LogicalDataFileName as NVARCHAR(MAX) 
     , @LogicalLogFileName as NVARCHAR(MAX) 
     , @TargetDataFilePath as NVARCHAR(MAX) 
     , @TargetLogFilePath as NVARCHAR(MAX) 

SELECT 
    @LogicalDataFileName = name, 
    @TargetDataFilePath = SUBSTRING(physical_name,1,LEN(physical_name)-CHARINDEX('\',REVERSE(physical_name))) + '\' + @TargetDatabaseName + '.mdf' 
FROM sys.master_files 
WHERE 
    database_id = DB_ID(@SourceDatabaseName)   
    AND type = 0   -- datafile file 

SELECT 
    @LogicalLogFileName = name, 
    @TargetLogFilePath = SUBSTRING(physical_name,1,LEN(physical_name)-CHARINDEX('\',REVERSE(physical_name))) + '\' + @TargetDatabaseName + '.ldf' 
FROM sys.master_files 
WHERE 
    database_id = DB_ID(@SourceDatabaseName)   
    AND type = 1   -- log file  



-- ============================================ 
-- Restore target database 
-- ============================================ 
IF EXISTS (SELECT 1 FROM sys.databases WHERE name = @TargetDatabaseName) 
    RAISERROR ('A database with the same name already exists!', 20, 1) WITH LOG   

SET @Sql = 'RESTORE DATABASE @TargetDatabaseName 
FROM DISK = ''@SourceBackupFilePath'' 
WITH MOVE ''@LogicalDataFileName'' TO ''@TargetDataFilePath'', 
MOVE ''@LogicalLogFileName'' TO ''@TargetLogFilePath''' 
SET @Sql = REPLACE(@Sql, '@TargetDatabaseName', @TargetDatabaseName) 
SET @Sql = REPLACE(@Sql, '@SourceBackupFilePath', @SourceBackupFilePath) 
SET @Sql = REPLACE(@Sql, '@LogicalDataFileName', @LogicalDataFileName) 
SET @Sql = REPLACE(@Sql, '@TargetDataFilePath', @TargetDataFilePath) 
SET @Sql = REPLACE(@Sql, '@LogicalLogFileName', @LogicalLogFileName) 
SET @Sql = REPLACE(@Sql, '@TargetLogFilePath', @TargetLogFilePath) 
SELECT 'Restoring...', @Sql as ExecutedSql 
EXEC (@Sql)