Expert Oracle Exadata - Parent Directory

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CHAPTER 16 UNLEARNING SOME THINGS WE THOUGHT WE KNEWselect /*+ bloom join 2 use_hash (skew temp_skew) */ a.col2,sum(a.col1) from kso.skew3 a, kso.skew2 b where a.pk_col = b.pk_col andb.col1 = 1 group by a.col2Plan hash value: 2628392092-------------------------------------------------------------------------------------| Id | Operation | Name | Rows | Bytes | Cost (%CPU)|-------------------------------------------------------------------------------------| 0 | SELECT STATEMENT | | | | 49465 (100)|| 1 | PX COORDINATOR | | | | || 2 | PX SEND QC (RANDOM) | :TQ10002 | 2 | 66 | 49465 (1)|| 3 | HASH GROUP BY | | 2 | 66 | 49465 (1)|| 4 | PX RECEIVE | | 2 | 66 | 49465 (1)|| 5 | PX SEND HASH | :TQ10001 | 2 | 66 | 49465 (1)|| 6 | HASH GROUP BY | | 2 | 66 | 49465 (1)||* 7 | HASH JOIN | | 1706 | 56298 | 49464 (1)|| 8 | PX RECEIVE | | 142 | 1562 | 12357 (1)|| 9 | PX SEND BROADCAST | :TQ10000 | 142 | 1562 | 12357 (1)|| 10 | PX BLOCK ITERATOR | | 142 | 1562 | 12357 (1)||* 11 | TABLE ACCESS STORAGE FULL| SKEW2 | 142 | 1562 | 12357 (1)|| 12 | PX BLOCK ITERATOR | | 384M| 8056M| 37020 (1)||* 13 | TABLE ACCESS STORAGE FULL | SKEW3 | 384M| 8056M| 37020 (1)|-------------------------------------------------------------------------------------Predicate Information (identified by operation id):---------------------------------------------------7- access("A"."PK_COL"="B"."PK_COL")11- storage(:Z>=:Z AND :Z=:Z AND :Z
CHAPTER 16 UNLEARNING SOME THINGS WE THOUGHT WE KNEWmajority of their computing resources to moving data between platforms. The power of Exadata makes ittempting to combine these environments. Keep in mind that Exadata has additional capabilities fordividing resources between multiple databases that are not available on other platforms. IORM canprevent long-running DW queries from crippling latency-sensitive statements that are running on thesame system. Having a good understanding of Oracle’s resource management capabilities shouldchange the way you think about what is possible in a mixed-workload or consolidated environment.Resource management is covered in depth in Chapter 7.SummaryExadata is different. To make the best use of it you’ll need to think differently.534
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For your convenience Apress has pla
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IntroductionThank you for purchasin
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INTRODUCTIONwere implementing Exada
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CHAPTER 1 WHAT IS EXADATA?end of t
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C H A P T E R 2Offloading / Smart S
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CHAPTER 2 OFFLOADING / SMART SCANR
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C H A P T E R 3Hybrid Columnar Comp
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CHAPTER 3 HYBRID COLUMNAR COMPRESS
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C H A P T E R 4Storage IndexesStora
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CHAPTER 4 STORAGE INDEXESMonitorin
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CHAPTER 4 STORAGE INDEXES• For e
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CHAPTER 4 STORAGE INDEXESSYS@EXDB1
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CHAPTER 4 STORAGE INDEXESpositives
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CHAPTER 4 STORAGE INDEXESIncorrect
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CHAPTER 4 STORAGE INDEXES---------
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CHAPTER 4 STORAGE INDEXES1 row sel
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C H A P T E R 5Exadata Smart Flash
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CHAPTER 5 EXADATA SMART FLASH CACH
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C H A P T E R 6Exadata Parallel Ope
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CHAPTER 6 MAKING PCBSParameter Def
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CHAPTER 6 MAKING PCBSTable 6-2. Hi
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CHAPTER 6 MAKING PCBSSo as you can
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CHAPTER 6 MAKING PCBSSYS@EXDB1> /S
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CHAPTER 6 MAKING PCBSControlDescri
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CHAPTER 7 RESOURCE MANAGEMENTimpor
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C H A P T E R 8Configuring ExadataO
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CHAPTER 10 EXADATA WAIT EVENTSSYS@
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CHAPTER 10 EXADATA WAIT EVENTScell
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C H A P T E R 11Understanding Exada
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C H A P T E R 14Storage LayoutIn Or
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CHAPTER 14 STORAGE LAYOUTFailure G
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Page 512 and 513: C H A P T E R 16Unlearning Some Thi
Page 514 and 515: CHAPTER 16 UNLEARNING SOME THINGS
Page 536 and 537: A P P E N D I X ACellCLI and dcliCe
Page 538 and 539: APPENDIX A CELLCLI AND DCLILIST FL
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Page 542 and 543: APPENDIX A CELLCLI AND DCLICellCLI
Page 544 and 545: APPENDIX A CELLCLI AND DCLI• Dis
Page 546 and 547: A P P E N D I X BOnline Exadata Res
Page 548 and 549: A P P E N D I X CDiagnostic Scripts
Page 550 and 551: APPENDIX C DIAGNOSTIC SCRIPTSScrip
Page 552 and 553: Index• AAccess control list (ACL)
Page 554 and 555: • INDEXnetwork componentsclient a
Page 556 and 557: • INDEX• Epredicate offload, 36
Page 558 and 559: • INDEXOTHER_GROUPS consumer grou
Page 560 and 561: • INDEXCPU utilization, 152mixed
Page 562 and 563: • INDEXstructure, 105sub-query, 1
Page 564 and 565: Expert Oracle Exadatan n nKerry Osb
Page 566 and 567: Contents• About the Authors......
Page 568 and 569: • CONTENTSHow to Verify That Smar
Page 570 and 571: • CONTENTSControlling ESFC Usage
Page 572 and 573: • CONTENTSSummary ...............
Page 574 and 575: • CONTENTS• Chapter 12: Monitor
Page 576 and 577: • CONTENTS• Chapter 16: Unlearn
Page 578 and 579: About the Technical Reviewer Kevin
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