Wednesday, 4 January 2017

Rman targetless duplication with different DB name and different directory structure using file_name convert


Overview:


Oracle Recovery Manager (RMAN) provides a comprehensive foundation for efficiently backing up and recovering the Oracle databasesit provides a common interface, via command line and Enterprise Manager, for backup tasks across different host operating systems, automates administration of your backup strategies.

   In this scenario we have different database name and different directory structure. And we are transforming the directory structure in pfile itself, then no need to give extra parameters in rman duplicate command.

Target (source) details

Database Name
Prod
Hostname
Netsoftmate
Ip Address
172.16.110.18
OS
Linux
Version
x86_64
Datafile Location
/data2/prod
Backup Location
/backup/rman_backup


Destination details


Database Name
Cipfile
Hostname
Netsoftmate1
Ip Address
172.16.110.16
OS
Linux
Version
x86_64
Datafile Location
/data2/cipfile
Backup Location
/backup/rman_backup



Prerequisites

Password file from target database.
Sqlnet.ora should have correct parameters.
Target database should be running through pfile or spfile.
Auxiliary instance should be start with pfile in nomount stage.


Steps on target (source) server

1. Set Oracle sid on which backup will perform. 

[oracle@Netsoftmate dbs]$ hostname

Netsoftmate

[oracle@Netsoftmate dbs]$ export ORACLE_SID=prod

2. Connect to target instance via RMAN.

[oracle@Netsoftmate dbs]$ rman target sys/oracle



Recovery Manager: Release 11.2.0.1.0 - Production on Mon Apr 13 10:13:01 2015



Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.



connected to target database: PROD (DBID=284539893)



RMAN>

 3. Issue the following command to initiate backup. Before issue the backup command check the backup location is sat correctly.

RMAN> show all;



using target database control file instead of recovery catalog

RMAN configuration parameters for database with db_unique_name PROD are:

CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default

CONFIGURE BACKUP OPTIMIZATION OFF; # default

CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/backup/rman_backup/controlfile_%F';

CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT   '/backup/rman_backup/db_arch_%U.bkp';

CONFIGURE MAXSETSIZE TO UNLIMITED; # default

CONFIGURE ENCRYPTION FOR DATABASE OFF; # default

CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default

CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default

CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default

CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/data2/app/oracle/product/11.2.0/dbs/snapcf_prod.f'; # default



RMAN> list backup;



specification does not match any backup in the repository

 4. Initiate Backup.

RMAN> backup database plus archivelog;





Starting backup at 13-APR-15

current log archived

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=15 device type=DISK

channel ORA_DISK_1: starting archived log backup set

channel ORA_DISK_1: specifying archived log(s) in backup set

input archived log thread=1 sequence=153 RECID=149 STAMP=876910536

channel ORA_DISK_1: starting piece 1 at 13-APR-15

channel ORA_DISK_1: finished piece 1 at 13-APR-15

piece handle=/backup/rman_backup/db_arch_2uq495u9_1_1.bkp tag=TAG20150413T101536 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01

Finished backup at 13-APR-15



Starting backup at 13-APR-15

using channel ORA_DISK_1

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

input datafile file number=00001 name=/data2/prod/system01.dbf

input datafile file number=00002 name=/data2/prod/sysaux01.dbf

input datafile file number=00005 name=/data2/prod/example01.dbf

input datafile file number=00003 name=/data2/prod/undotbs01.dbf

input datafile file number=00006 name=/data2/prod/data01.dbf

input datafile file number=00004 name=/data2/prod/users01.dbf

input datafile file number=00007 name=/data2/prod/test01.dbf

input datafile file number=00008 name=/data2/prod/tools01.dbf

channel ORA_DISK_1: starting piece 1 at 13-APR-15

channel ORA_DISK_1: finished piece 1 at 13-APR-15

piece handle=/backup/rman_backup/db_arch_2vq495ua_1_1.bkp tag=TAG20150413T101538 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:55

Finished backup at 13-APR-15



Starting backup at 13-APR-15

current log archived

using channel ORA_DISK_1

channel ORA_DISK_1: starting archived log backup set

channel ORA_DISK_1: specifying archived log(s) in backup set

input archived log thread=1 sequence=154 RECID=150 STAMP=876910594

channel ORA_DISK_1: starting piece 1 at 13-APR-15

channel ORA_DISK_1: finished piece 1 at 13-APR-15

piece handle=/backup/rman_backup/db_arch_30q49603_1_1.bkp tag=TAG20150413T101635 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01

Finished backup at 13-APR-15



Starting Control File Autobackup at 13-APR-15

piece handle=/backup/rman_backup/controlfile_c-284539893-20150413-00 comment=NONE

Finished Control File Autobackup at 13-APR-15

 5. List out the backups

RMAN> list backup;





List of Backup Sets

===================





BS Key  Size       Device Type Elapsed Time Completion Time

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

32      3.36M      DISK        00:00:00     13-APR-15

        BP Key: 32   Status: AVAILABLE  Compressed: NO  Tag: TAG20150413T101536

        Piece Name: /backup/rman_backup/db_arch_2uq495u9_1_1.bkp



  List of Archived Logs in backup set 32

  Thrd Seq     Low SCN    Low Time  Next SCN   Next Time

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

  1    153     5172938    13-APR-15 5176490    13-APR-15



BS Key  Type LV Size       Device Type Elapsed Time Completion Time

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

33      Full    1.11G      DISK        00:00:54     13-APR-15

        BP Key: 33   Status: AVAILABLE  Compressed: NO  Tag: TAG20150413T101538

        Piece Name: /backup/rman_backup/db_arch_2vq495ua_1_1.bkp

  List of Datafiles in backup set 33

  File LV Type Ckp SCN    Ckp Time  Name

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

  1       Full 5176498    13-APR-15 /data2/prod/system01.dbf

  2       Full 5176498    13-APR-15 /data2/prod/sysaux01.dbf

  3       Full 5176498    13-APR-15 /data2/prod/undotbs01.dbf

  4       Full 5176498    13-APR-15 /data2/prod/users01.dbf

  5       Full 5176498    13-APR-15 /data2/prod/example01.dbf

  6       Full 5176498    13-APR-15 /data2/prod/data01.dbf

  7       Full 5176498    13-APR-15 /data2/prod/test01.dbf

  8       Full 5176498    13-APR-15 /data2/prod/tools01.dbf



BS Key  Size       Device Type Elapsed Time Completion Time

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

34      9.00K      DISK        00:00:00     13-APR-15

        BP Key: 34   Status: AVAILABLE  Compressed: NO  Tag: TAG20150413T101635

        Piece Name: /backup/rman_backup/db_arch_30q49603_1_1.bkp



  List of Archived Logs in backup set 34

  Thrd Seq     Low SCN    Low Time  Next SCN   Next Time

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

  1    154     5176490    13-APR-15 5176531    13-APR-15



BS Key  Type LV Size       Device Type Elapsed Time Completion Time

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

35      Full    9.52M      DISK        00:00:02     13-APR-15

        BP Key: 35   Status: AVAILABLE  Compressed: NO  Tag: TAG20150413T101636

        Piece Name: /backup/rman_backup/controlfile_c-284539893-20150413-00

  Control File Included: Ckp SCN: 5176543      Ckp time: 13-APR-15



RMAN>

 6. Create pfile and copy to destination server.
SQL> create pfile='/backup/rman_backup/initprod.ora' from spfile;



File created.



[oracle@Netsoftmate dbs]$ scp initprod.ora oracle@172.16.110.16:/data1/oracle11g/product/dbs/initcipfile.ora

oracle@172.16.110.16's password:

initprod.ora                                                                                                                                                       100% 1169     1.1KB/s   00:00

 Before start scp/ftp to destination server create directory structure to accommodate Rman backup on destination server.


[oracle@Netsoftmate1 prod]$ mkdir -p /backup/rman_backup/

7. Copy rman backup from target to destination server.

RMAN> exit





Recovery Manager complete.

[oracle@Netsoftmate dbs]$ cd /backup/rman_backup/

[oracle@Netsoftmate rman_backup]$ ls -lrt

total 1176020

-rw-r-----. 1 oracle dba    3526656 Apr 13 10:15 db_arch_2uq495u9_1_1.bkp

-rw-r-----. 1 oracle dba 1190690816 Apr 13 10:16 db_arch_2vq495ua_1_1.bkp

-rw-r-----. 1 oracle dba       9728 Apr 13 10:16 db_arch_30q49603_1_1.bkp

-rw-r-----. 1 oracle dba    9994240 Apr 13 10:16 controlfile_c-284539893-20150413-00

[oracle@Netsoftmate rman_backup]$ scp * oracle@172.16.110.16:/backup/rman_backup/

oracle@172.16.110.16's password:

controlfile_c-284539893-20150413-00                                                                                                                                100% 9760KB   9.5MB/s   00:01

db_arch_2uq495u9_1_1.bkp                                                                                                                                           100% 3444KB   3.4MB/s   00:00

db_arch_2vq495ua_1_1.bkp                                                                                                                                           100% 1136MB  11.1MB/s   01:42

db_arch_30q49603_1_1.bkp                                                                                                                                           100% 9728     9.5KB/s   00:00

  
Steps on destination server

8. Create new directory structure. 

[oracle@Netsoftmate1 dbs]$ mkdir -p /data2/cipfile
  9. Edit the pfile.
[oracle@Netsoftmate1 dbs]$ vi initcipfile.ora


Here we have modified the pfile by adding these parameters as follows.
*.db_name='cipfile'

*.control_files='/data2/cipfile/control01.ctl','/data2/cipfile/control02.ctl'

*.db_file_name_convert=('/data2/prod','/data2/cipfile')

*.log_file_name_convert=('/data2/prod','/data2/cipfile')


10. Create password file in $ORACLE_HOME/dbs directory 
/data1/oracle11g/product/dbs

[oracle@Netsoftmate1 dbs]$ orapwd file=orapwcipfile password=ora123
11. Start the instance in no mount stage. 
[oracle@Netsoftmate1 dbs]$ export ORACLE_SID=cipfile

[oracle@Netsoftmate1 dbs]$ sqlplus



SQL*Plus: Release 11.2.0.1.0 Production on Mon Apr 13 11:59:27 2015



Copyright (c) 1982, 2009, Oracle.  All rights reserved.



Enter user-name: sys as sysdba

Enter password:

Connected to an idle instance.



SQL> startup nomount

ORACLE instance started.



Total System Global Area 1152450560 bytes

Fixed Size                  2212696 bytes

Variable Size             352324776 bytes

Database Buffers          788529152 bytes

Redo Buffers                9383936 bytes

SQL> exit

Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

[oracle@Netsoftmate1 dbs]$


12. Connect to auxiliary instance via RMAN and issue the duplicate command. 
[oracle@Netsoftmate1 dbs]$ echo $ORACLE_SID

cipfile

[oracle@Netsoftmate1 dbs]$ rman auxiliary sys/ora123



Recovery Manager: Release 11.2.0.1.0 - Production on Mon Apr 13 12:03:23 2015



Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.



connected to auxiliary database: CIPFILE (not mounted)



RMAN>



RMAN> DUPLICATE TARGET DATABASE TO cipfile BACKUP LOCATION '/backup/rman_backup';



Starting Duplicate Db at 13-APR-15



contents of Memory Script:

{

   sql clone "create spfile from memory";

}

executing Memory Script



sql statement: create spfile from memory



contents of Memory Script:

{

   shutdown clone immediate;

   startup clone nomount;

}

executing Memory Script



Oracle instance shut down



connected to auxiliary database (not started)

Oracle instance started



Total System Global Area    1152450560 bytes



Fixed Size                     2212696 bytes

Variable Size                335547560 bytes

Database Buffers             805306368 bytes

Redo Buffers                   9383936 bytes



contents of Memory Script:

{

   sql clone "alter system set  db_name =

 ''PROD'' comment=

 ''Modified by RMAN duplicate'' scope=spfile";

   sql clone "alter system set  db_unique_name =

 ''CIPFILE'' comment=

 ''Modified by RMAN duplicate'' scope=spfile";

   shutdown clone immediate;

   startup clone force nomount

   restore clone primary controlfile from  '/backup/rman_backup/controlfile_c-284539893-20150413-00';

   alter clone database mount;

}

executing Memory Script



sql statement: alter system set  db_name =  ''PROD'' comment= ''Modified by RMAN duplicate'' scope=spfile



sql statement: alter system set  db_unique_name =  ''CIPFILE'' comment= ''Modified by RMAN duplicate'' scope=spfile



Oracle instance shut down



Oracle instance started



Total System Global Area    1152450560 bytes



Fixed Size                     2212696 bytes

Variable Size                335547560 bytes

Database Buffers             805306368 bytes

Redo Buffers                   9383936 bytes



Starting restore at 13-APR-15

allocated channel: ORA_AUX_DISK_1

channel ORA_AUX_DISK_1: SID=63 device type=DISK



channel ORA_AUX_DISK_1: restoring control file

channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03

output file name=/data2/cipfile/control01.ctl

output file name=/data2/cipfile/control02.ctl

Finished restore at 13-APR-15



database mounted

released channel: ORA_AUX_DISK_1

allocated channel: ORA_AUX_DISK_1

channel ORA_AUX_DISK_1: SID=63 device type=DISK



contents of Memory Script:

{

   set until scn  5176531;

   set newname for datafile  1 to

 "/data2/cipfile/system01.dbf";

   set newname for datafile  2 to

 "/data2/cipfile/sysaux01.dbf";

   set newname for datafile  3 to

 "/data2/cipfile/undotbs01.dbf";

   set newname for datafile  4 to

 "/data2/cipfile/users01.dbf";

   set newname for datafile  5 to

 "/data2/cipfile/example01.dbf";

   set newname for datafile  6 to

 "/data2/cipfile/data01.dbf";

   set newname for datafile  7 to

 "/data2/cipfile/test01.dbf";

   set newname for datafile  8 to

 "/data2/cipfile/tools01.dbf";

   restore

   clone database

   ;

}

executing Memory Script



executing command: SET until clause



executing command: SET NEWNAME



executing command: SET NEWNAME



executing command: SET NEWNAME



executing command: SET NEWNAME



executing command: SET NEWNAME



executing command: SET NEWNAME



executing command: SET NEWNAME



executing command: SET NEWNAME



Starting restore at 13-APR-15

using channel ORA_AUX_DISK_1



channel ORA_AUX_DISK_1: starting datafile backup set restore

channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_AUX_DISK_1: restoring datafile 00001 to /data2/cipfile/system01.dbf

channel ORA_AUX_DISK_1: restoring datafile 00002 to /data2/cipfile/sysaux01.dbf

channel ORA_AUX_DISK_1: restoring datafile 00003 to /data2/cipfile/undotbs01.dbf

channel ORA_AUX_DISK_1: restoring datafile 00004 to /data2/cipfile/users01.dbf

channel ORA_AUX_DISK_1: restoring datafile 00005 to /data2/cipfile/example01.dbf

channel ORA_AUX_DISK_1: restoring datafile 00006 to /data2/cipfile/data01.dbf

channel ORA_AUX_DISK_1: restoring datafile 00007 to /data2/cipfile/test01.dbf

channel ORA_AUX_DISK_1: restoring datafile 00008 to /data2/cipfile/tools01.dbf

channel ORA_AUX_DISK_1: reading from backup piece /backup/rman_backup/db_arch_2vq495ua_1_1.bkp

channel ORA_AUX_DISK_1: piece handle=/backup/rman_backup/db_arch_2vq495ua_1_1.bkp tag=TAG20150413T101538

channel ORA_AUX_DISK_1: restored backup piece 1

channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:45

Finished restore at 13-APR-15



contents of Memory Script:

{

   switch clone datafile all;

}

executing Memory Script



datafile 1 switched to datafile copy

input datafile copy RECID=9 STAMP=876917132 file name=/data2/cipfile/system01.dbf

datafile 2 switched to datafile copy

input datafile copy RECID=10 STAMP=876917133 file name=/data2/cipfile/sysaux01.dbf

datafile 3 switched to datafile copy

input datafile copy RECID=11 STAMP=876917134 file name=/data2/cipfile/undotbs01.dbf

datafile 4 switched to datafile copy

input datafile copy RECID=12 STAMP=876917134 file name=/data2/cipfile/users01.dbf

datafile 5 switched to datafile copy

input datafile copy RECID=13 STAMP=876917135 file name=/data2/cipfile/example01.dbf

datafile 6 switched to datafile copy

input datafile copy RECID=14 STAMP=876917136 file name=/data2/cipfile/data01.dbf

datafile 7 switched to datafile copy

input datafile copy RECID=15 STAMP=876917137 file name=/data2/cipfile/test01.dbf

datafile 8 switched to datafile copy

input datafile copy RECID=16 STAMP=876917138 file name=/data2/cipfile/tools01.dbf



contents of Memory Script:

{

   set until scn  5176531;

   recover

   clone database

    delete archivelog

   ;

}

executing Memory Script



executing command: SET until clause



Starting recover at 13-APR-15

using channel ORA_AUX_DISK_1



starting media recovery



channel ORA_AUX_DISK_1: starting archived log restore to default destination

channel ORA_AUX_DISK_1: restoring archived log

archived log thread=1 sequence=154

channel ORA_AUX_DISK_1: reading from backup piece /backup/rman_backup/db_arch_30q49603_1_1.bkp

channel ORA_AUX_DISK_1: piece handle=/backup/rman_backup/db_arch_30q49603_1_1.bkp tag=TAG20150413T101635

channel ORA_AUX_DISK_1: restored backup piece 1

channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01

archived log file name=/backup/archive/1_154_872701561.dbf thread=1 sequence=154

channel clone_default: deleting archived log(s)

archived log file name=/backup/archive/1_154_872701561.dbf RECID=1 STAMP=876917145

media recovery complete, elapsed time: 00:00:04

Finished recover at 13-APR-15



contents of Memory Script:

{

   shutdown clone immediate;

   startup clone nomount;

   sql clone "alter system set  db_name =

 ''CIPFILE'' comment=

 ''Reset to original value by RMAN'' scope=spfile";

   sql clone "alter system reset  db_unique_name scope=spfile";

   shutdown clone immediate;

   startup clone nomount;

}

executing Memory Script



database dismounted

Oracle instance shut down



connected to auxiliary database (not started)

Oracle instance started



Total System Global Area    1152450560 bytes



Fixed Size                     2212696 bytes

Variable Size                335547560 bytes

Database Buffers             805306368 bytes

Redo Buffers                   9383936 bytes



sql statement: alter system set  db_name =  ''CIPFILE'' comment= ''Reset to original value by RMAN'' scope=spfile



sql statement: alter system reset  db_unique_name scope=spfile



Oracle instance shut down



connected to auxiliary database (not started)

Oracle instance started



Total System Global Area    1152450560 bytes



Fixed Size                     2212696 bytes

Variable Size                335547560 bytes

Database Buffers             805306368 bytes

Redo Buffers                   9383936 bytes

sql statement: CREATE CONTROLFILE REUSE SET DATABASE "CIPFILE" RESETLOGS ARCHIVELOG

  MAXLOGFILES     16

  MAXLOGMEMBERS      3

  MAXDATAFILES      100

  MAXINSTANCES     8

  MAXLOGHISTORY      292

 LOGFILE

  GROUP  1 ( '/data2/cipfile/redo01.log' ) SIZE 50 M  REUSE,

  GROUP  2 ( '/data2/cipfile/redo02.log' ) SIZE 50 M  REUSE,

  GROUP  3 ( '/data2/cipfile/redo03.log' ) SIZE 50 M  REUSE

 DATAFILE

  '/data2/cipfile/system01.dbf'

 CHARACTER SET WE8MSWIN1252





contents of Memory Script:

{

   set newname for tempfile  1 to

 "/data2/cipfile/temp01.dbf";

   switch clone tempfile all;

   catalog clone datafilecopy  "/data2/cipfile/sysaux01.dbf",

 "/data2/cipfile/undotbs01.dbf",

 "/data2/cipfile/users01.dbf",

 "/data2/cipfile/example01.dbf",

 "/data2/cipfile/data01.dbf",

 "/data2/cipfile/test01.dbf",

 "/data2/cipfile/tools01.dbf";

   switch clone datafile all;

}

executing Memory Script



executing command: SET NEWNAME



renamed tempfile 1 to /data2/cipfile/temp01.dbf in control file



cataloged datafile copy

datafile copy file name=/data2/cipfile/sysaux01.dbf RECID=1 STAMP=876917170

cataloged datafile copy

datafile copy file name=/data2/cipfile/undotbs01.dbf RECID=2 STAMP=876917170

cataloged datafile copy

datafile copy file name=/data2/cipfile/users01.dbf RECID=3 STAMP=876917171

cataloged datafile copy

datafile copy file name=/data2/cipfile/example01.dbf RECID=4 STAMP=876917171

cataloged datafile copy

datafile copy file name=/data2/cipfile/data01.dbf RECID=5 STAMP=876917172

cataloged datafile copy

datafile copy file name=/data2/cipfile/test01.dbf RECID=6 STAMP=876917172

cataloged datafile copy

datafile copy file name=/data2/cipfile/tools01.dbf RECID=7 STAMP=876917173



datafile 2 switched to datafile copy

input datafile copy RECID=1 STAMP=876917170 file name=/data2/cipfile/sysaux01.dbf

datafile 3 switched to datafile copy

input datafile copy RECID=2 STAMP=876917170 file name=/data2/cipfile/undotbs01.dbf

datafile 4 switched to datafile copy

input datafile copy RECID=3 STAMP=876917171 file name=/data2/cipfile/users01.dbf

datafile 5 switched to datafile copy

input datafile copy RECID=4 STAMP=876917171 file name=/data2/cipfile/example01.dbf

datafile 6 switched to datafile copy

input datafile copy RECID=5 STAMP=876917172 file name=/data2/cipfile/data01.dbf

datafile 7 switched to datafile copy

input datafile copy RECID=6 STAMP=876917172 file name=/data2/cipfile/test01.dbf

datafile 8 switched to datafile copy

input datafile copy RECID=7 STAMP=876917173 file name=/data2/cipfile/tools01.dbf



contents of Memory Script:

{

   Alter clone database open resetlogs;

}

executing Memory Script



database opened

Finished Duplicate Db at 13-APR-15



RMAN>





Conclusion
In the preceding scenario based article, we have learned that backup based duplication using Rman utility with different database name and different directory structure, using db_file_name_convert and log_file_name_convert option in pfile

BY
Name: Mirza Hidayathullah Baig
Designation: Senior Database Engineer
Organization: Netsoftmate IT Solutions.
Email: info@netsoftmate.com

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