Backing up with SQL statements, restoring databases

The only way to do that is to back up the database files to disk and restore them.

eg:

/*


back up the database through SQL statements


*/


BACKUP DATABASE mydb


to DISK = ' C:dbbackmydb.bak '


--Here Specify the path and filename that you want to back up the database, and note that the path's folder must have been created. The file name can be marked with a date


/*


restore the database through SQL statements


*/


Use master


RESTORE DATABASE mydb


from disk= ' C:dbbackmydb.bak '


with REPLACE


 

Note: Most of the time you cannot restore directly because the data is not open exclusively. You might use the following procedure

--kill the connection to access a database


CREATE PROC killspid (@DBName varchar)


as


BEGIN


DECLARE @SQL varchar


DECLARE @SPID int


SET @SQL = ' DECLARE currentid CURSOR for


SELECT spid from sysprocesses WHERE dbid=db_id (' + @DBName + ') '


FETCH NEXT from CurrentID into @SPID


While @ @FETCH_STATUS <>-1


BEGIN


exec (' KILL ' + @SPID)


FETCH NEXT from CurrentID into @SPID


End


Close CurrentID


deallocate CurrentID


End


 

Single user action database is best used when killing users

sp_dboption @DBName, ' Single user ', ' true '