Attaching database without transaction log file

Question

Attaching database without transaction log file

Tikkam Chand

SSC Enthusiast

Points: 110
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October 4, 2005 at 12:01 am

#110209

Hi,
I accidentally deleted the Transaction log file(Shift delete). Now I am not able to attach the database without this log file. Is there any way by which this is possible ??

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Mike Metcalf SSCrazy Eights Points: 8763 More actions · Answer 1

Hi,

There shouldn't be too much of a problem, just go ahead and re-attach, SQL will see that the transaction log file is missing and should recreate it for you.

Tikkam Chand SSC Enthusiast Points: 110 More actions · Answer 2

Hi Mike,

I tried doing it but it throws up an error and it does not create a new Log file for me. Can U try it in ur machine and update me? Thanks in Advance....

Mike Metcalf SSCrazy Eights Points: 8763 More actions · Answer 3

Hi there,

You can have a look in books online for the correct syntax, or failing that here's something that should do it for you using SQLDMO inside a script file.

Basically create an empty text file and copy everything between the lines (but not including the lines). Obviously you'll need to amend the name of the DB and the location of the file etc (the bits in blue) but that's not exactly rocket science.

Rename the file to attach.vbs and run it

--------------------

on error resume next

dim oSQL

dim oDB

dim strDBName

strDBName = "YourDB"

strLogin = "sa"

strPassword = "yourpassword"

strMDFFile = "c:\datafile\YourDB_Data.mdf"

set oSQL = createobject("SQLDMO.SQLServer")

oSQL.Connect "(local)", strLogin , strPassword

set oDB = oSQL.Databases.Item(strDBName )

if isobject(oDB) then

msgbox "database already exists"

else

oSQL.AttachDB strDBName, strMDFFile

msgbox "done"

end if

-----------------------------------

Ian Yates SSCoach Points: 19738 More actions · Answer 4

You can use the stored proc

sp_attachsinglefiledb

Copied from books online...

Transact-SQL Reference

sp_attach_single_file_db

Attaches a database having only one data file to the current server.

Syntax

sp_attach_single_file_db [ @dbname = ] 'dbname'

, [ @physname = ] 'physical_name'

Arguments

[@dbname =] 'dbname'

Is the name of the database to be attached to the server. dbname is sysname, with a default of NULL.

[@physname =] 'phsyical_name'

Is the physical name, including path, of the database file. physical_name is nvarchar(260), with a default of NULL.

Return Code Values

0 (success) or 1 (failure)

Result Sets

None

Remarks

When sp_attach_single_file_db attaches the database to the server, it builds a new log file and performs additional cleanup work to remove replication from the newly attached database.

Use sp_attach_single_file_db only on databases that were previously detached from the server using an explicit sp_detach_db operation.

Use sp_attach_single_file_db only on databases that have a single log file. Do not use this stored procedure on databases that have multiple log files.

Permissions

Only members of the sysadmin and dbcreator fixed server roles can execute this procedure.

Examples

This example detaches pubs and then attaches one file from pubs to the current server.

EXEC sp_detach_db @dbname = 'pubs'EXEC sp_attach_single_file_db @dbname = 'pubs',    @physname = 'c:\Program Files\Microsoft SQL Server\MSSQL\Data\pubs.mdf'

Attaching database without transaction log file

sp_attach_single_file_db

Syntax

Arguments

Return Code Values

Result Sets

Remarks

Permissions

Examples

See Also