Zou Jian: Backup Restore Database Universal Store

xiaoxiao2021-04-03  214

Note that the restore below is implemented in the stored procedure!

IF

exists

(

SELECT

*

From

DBO.SYSOBJECTS

WHERE

id

=

Object_id

(N

'

[dbo]. [p_backupdb]

'

)

and

ObjectProperty

(ID, N

'

ISPROCEDURE

'

)

=

1

)

Drop

Procedure

[

DBO

]

.

[

p_backupdb

]

Go

/ ** /

/ * - General stored procedure for backup database - Zou Jian 2003.10 - * /

/ ** /

/ * - Call example - Backup Current Database EXEC P_BACKUPDB @ bkpath = 'c: /', @ bkfname = '/ dbname / _ / date / _db.bak' stored procedure Removes Backup and Restore Database: if EXISTS (SELECT * From dbo.sysObjects where id = Object_id (n '[dbo]. [p_backupdb]') And ObjectProperty (ID, n'isprocedure ') = 1) DROP Procedure [dbo]. [p_backupdb] go / * - Backup database Universal Storage Procedure - Zou Jian 2003.10 - * /

/ ** /

/ * - Call example - Backup Current Database EXEC P_BACKUPDB @ BKPATH = 'C: /', @ bkfname = '/ dbname / _ / date / _db.bak' - Difference Backup Current Database EXEC P_BACKUPDB @ bkpath = 'C : / ', @ bkfname =' db_ / date / _df.bak ', @ bktype =' DF '- Backup Current Database Log EXEC P_BACKUPDB @ Bkpath =' C: / ', @ bkfname =' db_ / date / _log. Bak ', @ bktype =' log '- * /

Create

PROC

p_backupdb

@dbname

Sysname

=

'' '

,

-

To back up the database name, not specified, back up the current database

@BKPATH

nvarchar

(

260

)

=

'' '

,

-

The storage directory of the backup file, not specified, use SQL default backup directories

@BKFNAME

nvarchar

(

260

)

=

'' '

,

-

Backup file name, file name can be used in / dbname / represents the database name, / Date / Representative Date, / Time / Representative Time

@BkType

nvarchar

(

10

)

=

'

DB

'

,

-

Backup Type: 'DB' Backup Database, 'DF' Difference Backup, 'Log' Log Backup

@Appendfile

Bit

=

1

,

-

Adding / overlay backup file

@Password

nvarchar

(

20

)

=

'' '

-

This password must be provided when the password set for the backup file (SQL2000 only supports)

AS

Declare

@SQL

VARCHAR

(

8000

)

IF

ISNULL

(

@dbname

,

'' '

)

=

'' '

Set @ dbname

=

DB_NAME

()

IF

ISNULL

(

@BKPATH

,

'' '

)

=

'' '

Begin

SELECT

@BKPATH

=

RTRIM

(

Reverse

(filename))

From

Master..sfiles

WHERE

Name

=

'

Master

'

SELECT

@BKPATH

=

Substring

(

@BKPATH

,

Charindex

(

'

/

'

,

@BKPATH

)

1

,

4000

),

@BKPATH

=

Reverse

(

Substring

(

@BKPATH

,

Charindex

(

'

/

'

,

@BKPATH

),

4000

))

'

BACKUP /

'

end

IF

ISNULL

(

@BKFNAME

,

'' '

)

=

'' '

set

@BKFNAME

=

'

/Dbname/_/date/_/time/.bak

'

set

@BKFNAME

=

Replace

(

Replace

(

Replace

(

@BKFNAME

,

'

/ DBNAME /

'

,

@dbname

),

'

/ Date /

'

,

Convert

(

VARCHAR

,

GetDate

(),

112

))

'

/ TIME /

'

,

Replace

(

Convert

(

VARCHAR

,

Getdate

(),

108

),

'

:

'

,

'' '

))

set

@SQL

=

'

BACKUP

'

Case

@BkType

WHEN

'

Log

'

THEN

'

log

'

Else

'

Database

'

end

@dbname

'

To disk =

'' '

@BKPATH

@BKFNAME

'' '

WITH

'

Case

@BkType

WHEN

'

DF

'

THEN

'

DiffERENTIAL,

'

Else

'' '

end

Case

@Appendfile

WHEN

1

THEN

'

Noinit

'

Else

'

Init

'

end

Case

ISNULL

(

@Password

,

'' '

)

WHEN

'' '

THEN

'' '

Else

'

PASSWORD =

'' '

@Password

'' ''

end

EXEC

(

@SQL

)

Go

IF

exists

(

SELECT

*

From

DBO.SYSOBJECTSWHERE

id

=

Object_id

(N

'

[dbo]. [p_restoredb]

'

)

and

ObjectProperty

(ID, N

'

ISPROCEDURE

'

)

=

1

)

Drop

Procedure

[

DBO

]

.

[

p_restoredb

]

Go

/ ** /

/ * - Restore database universal stored procedures - Zou Jian 2003.10 - * /

/ ** /

/ * - Call example - Complete recovery database EXEC P_RESTOREDB @ bkfile = 'c: /db_20031015_db.bak', @ dbname = 'db' - Difference backup Restore EXEC P_RESTOREDB @ bkfile = 'c: /db_20031015_db.bak', @ DBNAME = 'DB', @ retype = 'dbnor'Exec p_restoredb @ bkfile =' c: /db_20031015_df.bak ', @ dbname =' db ', @ retype =' DF '- log backup recovery EXEC P_RESTOREDB @ bkfile = 'c: /db_20031015_db.bak', @ dbname = 'db', @ retype = 'dbnor'exec p_restoredb @ bkfile =' c: /db_20031015_log.bak ', @ DBNAME =' DB ', @ RetyPE =' log '- - * /

Create

PROC

p_restoredb

@BKFile

nvarchar

(

1000

),

-

Define backup file names (with path) to recover

@dbname

Sysname

=

'' '

,

-

Define the reusable database name, default for backup file name

@dbpath

nvarchar

(

260

)

=

'' '

,

-

Restored data inventory places, not specified for SQL default data directory

@retype

nvarchar

(

10

)

=

'

DB

'

,

-

Recovery Type: 'DB' Full Recovery Database, 'DBNOR' is a different resumption, log recovery is complete, 'DF' Difference backup recovery, 'log' log recovery

@filenumber

int

=

1

,

-

Restore file number

@overexist

Bit

=

1

,

-

Whether to override the existing database, only @retype is "DB '/' dbnor 'is effective

@Killuser

Bit

=

1

,

-

Whether to close the user's use process, only @ overexist = 1 is effective

@Password

nvarchar

(

20

)

=

'' '

-

The password of the backup file (SQL2000 support only), if the password is set, this password must be provided

AS

Declare

@SQL

VARCHAR

(

8000

)

-

Get recovered database name

IF

ISNULL

(

@dbname

,

'' '

)

=

'' '

SELECT

@ SQL =

Reverse

(

@BKFile

),

@SQL

=

Case

WHEN

Charindex

(

'

.

'

,

@SQL

)

=

0

THEN

@SQL

Else

Substring

(

@SQL

,

Charindex

(

'

.

'

,

@SQL

)

1

,

1000

)

end

,

@SQL

=

Case

WHEN

Charindex

(

'

/

'

,

@SQL

)

=

0

THEN

@SQL

Else

Left

(

@SQL

,

Charindex

(

'

/

'

,

@SQL

)

-

1

)

end

,

@dbname

=

Reverse

(

@SQL

)

-

Get recovered data inventory placement

IF

ISNULL

(

@dbpath

,

'' '

)

=

'' '

Begin

SELECT

@dbpath

=

RTRIM

(

Reverse

(filename))

From

Master..sfiles

WHERE

Name

=

'

Master

'

SELECT

@dbpath

=

Reverse

(

Substring

(

@dbpath

,

Charindex

(

'

/

'

,

@dbpath

),

4000

))

end

-

Generate database recovery statement

set

@SQL

=

'

RESTORE

'

Case

@retype

WHEN

'

Log

'

THEN

'

log

'

Else

'

Database

'

end

@dbname

'

From disk =

'' '

@BKFile

'' ''

'

WITH FILE =

'

CAST

(

@filenumber

AS

VARCHAR

)

Case

WHEN

@overexist

=

1

and

@retype

in

(

'

DB

'

,

'

DBNOR

'

)

THEN

'

, Replace

'

Else

'' '

end

Case

@retype

WHEN

'

DBNOR

'

THEN

'

Norecovery

'

Else

'

, Recovery

'

end

Case

ISNULL

(

@Password

,

'' '

)

WHEN

'' '

THEN

'' '

Else

'

PASSWORD =

'' '

@Password

'' ''

end

-

Add mobile logic file processing

IF

@retype

=

'DB

'

oral

@retype

=

'

DBNOR

'

Begin

-

Get logical file names from backup files

Declare

@LFN

nvarchar

(

128

),

@TP

charr

(

1

),

@i

int

,

@S

VARCHAR

(

1000

)

-

Create a temporary table and save the obtained information

Create

TABLE

#TB (ln

nvarchar

(

128

), PN

nvarchar

(

260

), TP

charr

(

1

), FGN

nvarchar

(

128

), SZ NUMERIC

20

,

0

), MSZ NUMERIC

20

,

0

))

-

Get information from backup files

set

@S

=

'

RESTORE FILELISTONLY from Disk =

'' '

@BKFile

'' ''

Case

ISNULL

(

@Password

,

'' '

)

WHEN

'' '

THEN

'' '

Else

'

WITH password =

'' '

@Password

'' ''

end

insert

INTO

#TB

EXEC

(

@S

)

Declare

#f

Cursor

for

SELECT

LN, TP

From

#TB

Open

#f

Fetch

NEXT

From

#f

INTO

@LFN

,

@TP

set

@i

=

0

While

@@ fetch_status

=

0

Begin

SELECT

@SQL

=

@SQL

'

Move, MOVE

'' '

@LFN

'' '

TO

'' '

@dbpath

@dbname

CAST

(

@i

AS

VARCHAR

)

Case

@TP

WHEN

'

Di

'

THEN

'

.mdf

'' '

Else

'

.ldf

'' '

end

,

@i

=

@i

1

Fetch

NEXT

From

#f

INTO

@LFN

,

@TP

end

Close

#f

Deallocate

#f

end

-

Close User Process Process

IF

@overexist

=

1

and

@Killuser

=

1

Begin

Declare

HcForeach

Cursor

for

SELECT

s

=

'

Kill

'

CAST

(Spid)

AS

VARCHAR

)

From

Master..xysprocesses

WHERE

DBID

=

DB_ID

(

@dbname

)

EXEC

SP_MSFOREACH_WORKER

'

?

'

end

-

Restore database

EXEC

(

@SQL)

Go

Zou Jian said: To put it white, it is the application of the SQL statement of the database and restores the database:

-

Backup

BACKUP

Database

database

TO

DISK

=

'

C: / Your backup file name

'

-

reduction

RESTORE

Database

database

From

DISK

=

'

C: / Your backup file name

'

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