By  Francisco  Munoz  Alvarez  

Oracle 11G New  Func)onali)es  for  DBAs  

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Born  here   Grow  up  here  

Got  Married  Here   Mature  here   Now  Living  here  

ORACLE 11G IMPROVEMENTS  

RAC  70%  Faster  

Query  Results  Caching  

25%  Faster  

More Details More  Improvements  

STREAMS  30%-­‐50%  Faster  

OpEmizer  Stats  CollecEon  10X  Faster  

Oracle  Secure  Files  5X  Faster  than  normal  

filesystems.  

Table  Scans  2.5  X  Faster  using  

Advance  Compression  

Need More? More  Improvements  

“it  enables  read-­‐only  access  to  a  physical  standby  database  for  

queries,  sor)ng,  repor)ng,  web-­‐based  access,  while  con)nuously  keep  applying  all  changes  received  

from  the  primary  database.”  

ACTIVE DATA GUARD 11G  NEW  FUNCTIONALITIES  

“Compresses  any  type  of  data  (structured  and  unstructured  data),  as  well  as  network  traffic,  memory  u)liza)on  and  inclusive  the  amount  

of  data  in  the  process  of  being  backed  up”    

ADVANCED COMPRESSION 11G  NEW  FUNCTIONALITIES  

•  OLTP  compression  –  It  allows  structured  and  unstructured  data  to  be  compressed  on  INSERT,  UPDATE  and  DELETE  opera)ons.    

•  RMAN  Backup  Compression  -­‐  Compress  RMAN  backups.  •  Datapump   export   compression   -­‐   Compress   datapump   export  

files.  •  SecureFiles   Deduplica?on   -­‐   Detect   and   eliminate   duplicate  

copies  of  files  stored  within  the  database.    •  SecureFiles   Compression   -­‐   Compress   unstructured   file   data  

within  the  database.    •  Network  Traffic  Compression  -­‐  Compress  Data  Guard  redo  data  

as  it  is  sent  over  the  network.  

Compressions Available 11G  NEW  FUNCTIONALITIES  

OLTP Compression When  Loading  Data  

OLTP Compression When  Reading  

OLTP Compression When  Inser)ng    (Part  II)  

ADVANCED COMPRESSION 11G  NEW  FUNCTIONALITIES  

“allows  businesses  to  quickly  adopt  new  technologies  while  

elimina)ng  the  risks  associated  with  any  change  “  

RAT Real  Applica)on  Tes)ng  

“it  combines  a  workload  capture  and  replay  feature  with  an  SQL  

performance  analyser  to  help  you  to  test  the  changes  against  real-­‐life  workloads,  then  it  will  help  you  to  fine-­‐tune  them  before  pu\ng  them  

into  produc)on”  

“  Indexes that are ignored by the optimizer. Handy for testing without

dropping “  

INVISIBLE INDEXES 11G  NEW  FUNCTIONALITIES  

“AcEve  Database  DuplicaEon”  

“Virtual  Private  Catalog  and  Import  Catalog”  

           “Recovery  Advisor”    

RMAN>  LIST  FAILURE;                                                  RMAN>  ADVISE  FAILURE;            RMAN>  REPAIR  FAILURE;      

<PREVIEW><NOPROMPT>            

RMAN What  is  New  

“Tablespace  Point  in  Time  Recovery”  

“MulE  SecEon  Backups”  

“DuraEon”    

Backup  duraEon  00:30  database;  <minimize  Eme>  <minimize  load>  

RMAN Some  more  cool  stuff  

“Backup  Failover  to  Non-­‐Flash  Recovery  

Areas”  “Archival  Backup”  

“Validate  Database”    

Any  Eme  this  command  detects  a  database  failure,  it  iniEates  a  failure  assessment  and  logs  the  

failure  in  the  ADR.  

RMAN Some  more  stuff  

“  Configure  the  DB_ULTRA_SAFE  ini)aliza)on  parameter  on  both  the  primary  and  standby  systems  for  the  most  comprehensive  data  corrup)on  

preven)on  and  detec)on.“  

DB_ULTRA_SAFE 11G  NEW  FUNCTIONALITIES  

DB_ULTRA_SAFE In  the  Primary  DB  

DB_ULTRA_SAFE In  the  Standby  

“Read  Only  Tables”  

“Health  Monitor”  

“Virtual  Columns”    

purely  expression-­‐based  and  aren't  stored  on-­‐disk  

 

“EdiEon  Based  RedefiniEon”  

 Enables  you  to  upgrade  the  database  component  of  an  applica)on  while  it  is  in  use,  

thereby  minimizing  or  elimina)ng  down  )me.  

   

Other Important Stuff In  Oracle  11G  

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Thank  You!