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Restore DB procedure - date parameter

P: n/a
I am using this procedure from net for getting the restore script. It
lists the latest full backup file name and logs after that point. Is
there any way to modify this script to take either date or time as
parameter and give the files for restore? I need this if I need to
restore the data up to last week/upto some point of time.
CREATE procedure usp_what_files_to_restore
as
--
--
--
-- Description:
-- This stored procedure generates a list of files that need to be
restored
-- should the server need to be rebuild. The list only contains a
list of database
-- backup files.
--
-- Declare variables used in SP
declare @cmd nvarchar (1000)
declare @cmd1 nvarchar (1000)
declare @db nvarchar(128)
declare @filename nvarchar(128)
declare @cnt int
declare @num_processed int
declare @name nvarchar(128)
declare @physical_device_name nvarchar(128)
declare @backup_start_date datetime
declare @type char(1)
-- Section A --------------------------------------------
-- Turn off the row number message
set nocount on
-- Define cursor to hold all the different databases for the restore
script will be built
declare db cursor for
select name from master..sysdatabases
where name not in ('tempdb')
-- Create a global temporary table that will hold the name of the
backup, the database name,
-- and the type of database backup.
create table ##backupnames (
name nvarchar(100),
database_name nvarchar(100),
type char(1) )
-- Open cursor containing list of database names.
open db
fetch next from db into @db
-- Process until no more databases are left
WHILE @@FETCH_STATUS = 0
BEGIN
-- Subsection 1A ----------------------------------------------
-- initialize the physical device name
set @physical_device_name = ""
-- get the name of the last full database backup
select @physical_device_name = physical_device_name ,
@backup_start_date = backup_start_date
from msdb..backupset a join msdb..backupmediaset b on a.media_set_id
= b.media_set_id
join msdb..backupmediafamily c on a.media_set_id =
c.media_set_id
where type='d' and backup_start_date =
(select top 1 backup_start_date from msdb..backupset
where @db = database_name and type = 'd'
order by backup_start_date desc)
-- Did a full database backup name get found
if @physical_device_name <> ""
begin
-- Build command to place a record in table that holds backup names
select @cmd = 'insert into ##backupnames values (' + char(39) +
@physical_device_name + char(39) + ',' + char(39) + @db
+ char(39) + "," +
char(39) + 'd' + char(39)+ ')'
-- Execute command to place a record in table that holds backup names
exec sp_executesql @cmd
end
-- Subsection 1B ----------------------------------------------
-- Reset the physical device name
set @physical_device_name = ""
-- Find the last differential database backup
select @physical_device_name = physical_device_name,
@backup_start_date = backup_start_date
from msdb..backupset a join msdb..backupmediaset b on a.media_set_id
= b.media_set_id
join msdb..backupmediafamily c on a.media_set_id =
c.media_set_id
where type='i' and backup_start_date =
(select top 1 backup_start_date from msdb..backupset
where @db = database_name and type = 'I' and
backup_start_date > @backup_start_date
order by backup_start_date desc)
-- Did a differential backup name get found
if @physical_device_name <> ""
begin
-- Build command to place a record in table that holds backup names
select @cmd = 'insert into ##backupnames values (' + char(39) +
@physical_device_name + char(39) + ',' + char(39) + @db
+ char(39) + "," +
char(39) + 'i' + char(39)+ ')'
-- Execute command to place a record in table that holds backup names
exec sp_executesql @cmd
end
-- Subsection 1B ----------------------------------------------
-- Build command to place records in table to hold backup names for
all
-- transaction log backups from the last database backup
set @CMD = "insert into ##backupnames select physical_device_name," +
char(39) + @db + char(39) +
"," + char(39) + "l" + char(39) +
"from msdb..backupset a join msdb..backupmediaset b on
a.media_set_id = b.media_set_id " +
"join msdb..backupmediafamily c on a.media_set_id = c.media_set_id "
+
"where type=" + char(39) + "l" + char(39) + "and
backup_start_date > @backup_start_dat and" +
char(39) + @db + char(39) + " = database_name"
-- Execute command to place records in table to hold backup names
-- for all transaction log backups from the last database backup
exec sp_executesql @cmd,@params=N'@backup_start_dat datetime',
@backup_start_dat = @backup_start_date
-- get next database to process
fetch next from db into @db
end
-- close and deallocate database list cursor
close db
deallocate db
-- Section B -------------------------------------------------------
-- define cursor for all database and log backups
declare backup_name cursor for
select name,type from ##backupnames
-- Open cursor containing list of database backups for specific
database being processed
open backup_name
-- Get first database backup for specific database being processed
fetch next from backup_name into @physical_device_name, @type
-- Set counter to track the number of backups processed
set @NUM_PROCESSED = 0
-- Process until no more database backups exist for specific database
being processed
WHILE @@FETCH_STATUS = 0
BEGIN
-- print file name to restore
print @physical_device_name
-- Get next database backup to process
fetch next from backup_name into @physical_device_name, @type
end
-- Close and deallocate database backup name cursor for current
database being processed
close backup_name
deallocate backup_name

-- Drop global temporary table
drop table ##backupnames

GO
Jul 20 '05 #1
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