Preguntes Freqüents - FAQ

• Open SQL Server Management Studio (SSMS) and connect to the database.
• On the toolbar, click on 'New Query.'
• Copy the following lines of code and execute them.

USE [master]
GO
/****** Object: StoredProcedure [dbo].[sp_BackupDatabases] Script Date: 2024-12-05 1:00:07 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: Microsoft
-- Create date: 2010-02-06
-- Description: Backup Databases for SQLExpress
-- Parameter1: databaseName
-- Parameter2: backupType F=full, D=differential, L=log
-- Parameter3: backup file location
-- =============================================
ALTER PROCEDURE [dbo].[sp_BackupDatabases]
@databaseName sysname = null,
@backupType CHAR(1),
@backupLocation nvarchar(200)
AS
SET NOCOUNT ON;
DECLARE @DBs TABLE
(
ID int IDENTITY PRIMARY KEY,
DBNAME nvarchar(500)
)
-- Pick out only databases which are online in case ALL databases are chosen to be backed up
-- If specific database is chosen to be backed up only pick that out from @DBs
INSERT INTO @DBs (DBNAME)
SELECT Name FROM master.sys.databases
where state=0
AND name= ISNULL(@databaseName ,name)
ORDER BY Name
-- Filter out databases which do not need to backed up
IF @backupType='F'
BEGIN
DELETE @DBs where DBNAME IN ('TAS1','TAS2','TAS3','TAS4')
END
ELSE IF @backupType='D'
BEGIN
DELETE @DBs where DBNAME IN ('TAS1','TAS2','TAS3','TAS4')
END
ELSE IF @backupType='L'
BEGIN
DELETE @DBs where DBNAME IN ('TAS1','TAS2','TAS3','TAS4')
END
ELSE
BEGIN
RETURN
END
-- Declare variables
DECLARE @BackupName nvarchar(100)
DECLARE @BackupFile nvarchar(300)
DECLARE @DBNAME nvarchar(300)
DECLARE @sqlCommand NVARCHAR(1000)
DECLARE @dateTime NVARCHAR(20)
DECLARE @Loop int
-- Loop through the databases one by one
SELECT @Loop = min(ID) FROM @DBs
WHILE @Loop IS NOT NULL
BEGIN
-- Database Names have to be in [dbname] format since some have - or _ in their name
SET @DBNAME = '['+(SELECT DBNAME FROM @DBs WHERE ID = @Loop)+']'
-- Set the current date and time n yyyyhhmmss format
SET @dateTime = REPLACE(CONVERT(VARCHAR, GETDATE(),101),'/','') + '_' + REPLACE(CONVERT(VARCHAR, GETDATE(),108),':','')
-- Create backup filename in path\filename.extension format for full,diff and log backups
IF @backupType = 'F'
SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_FULL_'+ @dateTime+ '.BAK'
ELSE IF @backupType = 'D'
SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_DIFF_'+ @dateTime+ '.BAK'
ELSE IF @backupType = 'L'
SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_LOG_'+ @dateTime+ '.TRN'
-- Provide the backup a name for storing in the media
IF @backupType = 'F'
SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' full backup for '+ @dateTime
IF @backupType = 'D'
SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' differential backup for '+ @dateTime
IF @backupType = 'L'
SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' log backup for '+ @dateTime
-- Generate the dynamic SQL command to be executed
IF @backupType = 'F'
BEGIN
SET @sqlCommand = 'BACKUP DATABASE ' +@DBNAME+ ' TO DISK = '''+@BackupFile+ ''' WITH INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'
END
IF @backupType = 'D'
BEGIN
SET @sqlCommand = 'BACKUP DATABASE ' +@DBNAME+ ' TO DISK = '''+@BackupFile+ ''' WITH DIFFERENTIAL, INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'
END
IF @backupType = 'L'
BEGIN
SET @sqlCommand = 'BACKUP LOG ' +@DBNAME+ ' TO DISK = '''+@BackupFile+ ''' WITH INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'
END
-- Execute the generated SQL command
EXEC(@sqlCommand)
-- Goto the next database
SELECT @Loop = min(ID) FROM @DBs where ID>@Loop
END

TAS1, TAS2, TAS3, and TAS4 are the database names that you do not want to back up.

• Using a text editor, create a batch file named Sqlbackup.bat, and then copy the appropriate text from one of the following examples into the file based on your scenario:

Full Backup : 

 sqlcmd -S .\SQLEXPRESS -E -Q "EXEC sp_BackupDatabases @backupLocation='D:\SQLBackups\', @backupType='F'"

Differential backup :

sqlcmd -U <YourSQLLogin> -P <StrongPassword> -S .\SQLEXPRESS -Q "EXEC sp_BackupDatabases  @backupLocation ='D:\SQLBackups', @BackupType='D'"

 sqlcmd -S .\SQLEXPRESS -E -Q "EXEC sp_BackupDatabases @backupLocation='D:\SQLBackups\',@backupType='L'"

• Schedule a task in Windows Task Scheduler to execute the "Sqlbackup.bat" file.
• create another batch file that removes old backup files from the network path and moves the new backup files to that location.

del /Q "\\server\Backup\*.*"

move /y "D:\SQLBackups\*.*" "\\server\Backup"

• Use Windows Task Scheduler to schedule a job that executes this batch file as well.