1. Oracle DBA Some tips and Best Practices To become a successful professional

2. 8/9i/10g/11g OCP, RAC OCE, AS OCA, E-Business OCP , SQL /PLSQL OCA , Oracle 7 OCM Oracle 7 and Oracle 11gR2 Beta Tester ITIL Certified Blog: www.oraclenz.com Email: franciscoa@dbisonline.com Twitter: fcomunoz Francisco Munoz Alvarez DBIS - Copyright 2010 2 Oracle ACE Director NZOUG President LAOUC President CLOUG President DBIS – CEO & Technical Director

3. DBIS - Copyright 2010 3 Born here Grow up here Got Married Here Mature here Now Living here

4. Copyright 2010 4 Agenda 1 Change yourself 2 The 3 Rules 3 Evolution of the DBA Role 4 Some tips and best practices 5 The 3 DBAs

5. First: Learn to Change Yourself If do you want to become a successful professional, first you need to educate yourself to be successful! Your future success depends only in your attitude today! You control your life, nobody else! DBIS - Copyright 2010 5 Comm. SUCCESS Success Innovate Attitude Research

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7. My 3 Rules 1 Protect Your Data 2 Always Try Before 3 Backup, Backup & Backup

8. “The most important rule with respect to data is to never put yourself into an unrecoverable situation.” Protect your data! The importance of this guideline cannot be stressed enough, but it does not mean that you can never use time saving or performance enhancing options. 8

9. Always Try it Before! When it comes to theory, “NEVER” believe anything you hear or read until you have tried it yourself. 9

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11. Backup, Backup & Backup Why? Because bad stuff happens… 11

12. Servers (DB/AS) , NET, Security ... Oracle DBs DBA Backups DW 24 x 7 Other DBAs And Developers RAC DR & Standby DBs System & Net. Admin. MySQL SQL Server DB2,etc HR Finance You named 12

13. Some tips and Best Practices Copyright 2010 13

15. Always Backup before a change

16. Always Backup after a change

17. If possible Encrypt Backups for your security

18. Nothing bad will happen … is a easy change…

19. I test it before and nothing happens …

20. Reduce Risks

21. Allow an easy Rollback if necessary

24. Reduce Risks

25. Will have your users happy when ask you to recover a table from last week…

28. Developers only need to have full access to Dev

29. Transform Test and Prod in High Secure areas

30. Yes, we have a Dev/Test/Prod. But they are in the same server…

31. Everyone know what each one is doing…

32. We are saving money to the company…

33. Reduce Risks

34. Allow you to be really responsible for the Environments

35. Protect System Performance and Availability

37. Always create a Change Request

38. Always try to involve all affected users

40. It will not affect no one…

41. It’s better to say sorry than ask for authorization…

42. Will allow you to document and review the process.

43. Will allow others to review your process.

44. Will contain all approvals and tests (for your safety and mental health)

48. It can wait a few minutes more, I’m on break now…

49. It’s lunch time, will take a look when back…

50. Reduce Company Revenue losses

51. Will save your job

53. Check for Bitmap Indexes on OLTP Environment

54. Dead Locks are Developers fault…

55. Improves DB Performance

57. If it can’t be made automatic, try to delegate it!

58. I can do it by myself…

59. I love to be involved on everything…

60. I love to create users, extend tablespaces, change passwords…

61. I love to run a checklist every day…

63. Allow an easy Rollback if necessary

64. All versions Catalog scripts will be preserved

65. /u01/app/oracle/product/10.2/db_1

66. Patches are applied to the same Oracle Home

67. Use a different Oracle Home for each upgrade or Patching, example:

68. /u01/app/oracle/product/10.2/db_02

69. For the next patch, use a new Oracle Home

70. /u01/app/oracle/product/10.2/db_03

73. Will save you time and headaches

76. Allow you to create your own Version Control.

77. You never know when you will need it 

78. Create your own metadata repository.

79. Use datapump for this :$ expdp user/password content=metadata_only full=y directory=datapumpdumpfile=metadata_24112010.dmp $ impdp user/password directory=datapumpdumpfile= metadata_24112010.dmp sqlfile=metadata_24112010.sql

81. Allow you to use different mount points

82. Reduce Risks

83. /oracle/(prod/qa/test/dev)/SID/*

84. /u01/udump – for user files

85. /proddata/SID/*

86. /prodbackup/SID/*

88. You never know when you will need to use it

89. Will help with your professional development

90. Read Manuals

91. /Read the official documentation at http://tahiti.oracle.com

92. Read and practice OBE at OTN website

93. Help others at OTN Forums (Fantastic way to learn)

96. Allow you to know who to contact in case of…

98. 3 Kind of DBA’s 1 The Firefighter 2 The Proactive 3 The Balanced

99. What kind of DBA you are? Copyright 2010 32

100. Francisco Munoz Alvarez Auckland New Zealand franciscoa@dbisonline.com 33 Copyright 2010 Questions? Comments?