In-Memory is Your Data Warehouse s New BFF

Transcription

1 In-Memory is Your Data Warehouse s New BFF Michelle Kolbe linkedin.com/in/michelle.kolbe Michelle.Kolbe@RedPillAnalytics.com RED PILL Analytics

2 Who is Red Pill Analytics? 2017 RED PILL Analytics

3 Red Pill Analytics: Leadership Kevin McGinley Stewart Bryson Oracle ACE Director Oracle ACE Director Previously From: Accenture BI Consulting Group Previously From: Rittman Mead Informix Software Data Warehousing & Business Intelligence since 1997 Data Warehousing & Business Intelligence since RED PILL Analytics 3

4 About Me 2017 RED PILL Analytics

5 A unique approach to BI and analytics delivery. Development-as-a- Service Continuous Integration Products Agile Delivery Subscription Billing Traditional Consulting and Training

6 In Case You Missed the Memo 2017 RED PILL Analytics

7 Agenda 12.2 New Features for In-Memory 2017 RED PILL Analytics 7

8 We Can Have it Both Ways 2014 RED PILL Analytics

9 Breakthrough: Dual-Format Database 2017 RED PILL Analytics 9

10 Configuring the In-Memory Column Store 2017 RED PILL Analytics 10

11 Two Memory Sub-Pools 2014 RED PILL Analytics

12 2014 RED PILL Analytics IMCU pool: In Memory Compression Units Actual Columnar Data SMU pool: Snapshot Metadata Units(SMUs) Metadata about Columnar Data

13 Populating the In-Memory Column Store 2017 RED PILL Analytics

14 Column Compression Units 2014 RED PILL Analytics

15 2017 RED PILL Analytics Columnar representation of many rows Rows from one or more table extents Dependent on row, compression factor, etc.

16 In-Memory Compression Unit 2017 RED PILL Analytics 17

17 In-Memory Area 2017 RED PILL Analytics 18

18 Pure In-Memory Columnar Format 2017 RED PILL Analytics

19 2014 RED PILL Analytics Not Persisted on Storage 2x to 20x Compression Enabled at the Segment Level

20 ALTER TABLE sales INMEMORY; ALTER TABLE sales NO INMEMORY; ALTER TABLE sales INMEMORY NO INMEMORY (PROD_ID);

21 CREATE TABLE customers PARTITION BY LIST (PARTITION p1 INMEMORY, (PARTITION p2 NO INMEMORY);

22 Demo Part 1

23 Recap Size of the column store is controlled by inmemory_size parameter alter table lineorder inmemory; Monitor the column store using v$im_segments v$im_segments also shows our compress ratios

24 Querying the In-Memory Column Store 2017 RED PILL Analytics

25 2017 RED PILL Analytics Why is the In-Memory Column Store faster than the Buffer Cache?

26 2017 RED PILL Analytics Why is the In-Memory Column Store faster than the Buffer Cache? It s all memory after all.

27 Column Store Storage Indexes 2017 RED PILL Analytics

28 Orders of Magnitude Faster Analytics Scans 2017 RED PILL Analytics

29 Demo Part 2

30 Recap Alter session set inmemory_query=disable; inmemory & no_inmemory hints Column store 40X faster than buffer cache on single row access Storage index MIN/MAX pruning reduces data scans significantly

31 12c R2 New Features for In-Memory 2017 RED PILL Analytics

32 2017 RED PILL Analytics New Objects for In-Memory: Virtual Columns Column Expressions

33 In-Memory Fast Start 2017 RED PILL Analytics

34 Join Groups 2017 RED PILL Analytics

35 Expression Tracking 2017 RED PILL Analytics

36 Resize 2017 RED PILL Analytics

37 2017 RED PILL Analytics In-Memory Support on Oracle Active Data Guard

38 Text Here 2016 RED PILL Analytics

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40 In-Memory is Your Data Warehouse s New BFF Michelle Kolbe linkedin.com/in/michelle.kolbe Michelle.Kolbe@RedPillAnalytics.com RED PILL Analytics