[OCM 12C] Configuring the Resource Manager

Good to user with Enterprise Manager Cloud Control. “Oracle Database Resource Manager (the Resource Manager) enables you to manage multiple workloads within a database that are contending for system and database resources.” “You can examine these statistics using real-time SQL monitoring and the Resource Manager dynamic performance views (the V$RSRC_* views).” “Oracle Database provides a procedure (CREATE_SIMPLE_PLAN) that enables you to quickly create a simple resource plan.” Views: V$SESSION V$RSRC_* views) Steps to create a complex plan: Step 1: Create a pending area. Step 2: Create, modify, or delete consumer…

Optimizing star queries

DBMS_XPLAN.DISPLAY ALTER SESSION SET star_transformation_enabled=TEMP_DISABLE; Database Administration -> Database PL/SQL Packages and Types Reference -> 202 DBMS_XPLAN Database Administration -> Oracle Database Reference -> STAR_TRANSFORMATION_ENABLED brunorsHi! I am Bruno, a Brazilian born and bred, and I am also a naturalized Swedish citizen. I am a former Oracle ACE and, to keep up with academic research, I am a Computer Scientist with an MSc in Data Science and another MSc in Software Engineering. I have over ten years of experience working with companies such as IBM, Epico Tech, and Playtech across…

How was the Workshop: Become a Hero with Oracle Autonomous Database in Stockholm, Sweden ( March 6, 2019) ?

Hello, Hello, As I announced a few weeks ago, I confirmed that I will join the Workshop: Become a Hero with Oracle Autonomous Database in Stockholm, Sweden ( March 6, 2019) . Besides the knowledge I gained attending this event I would really like to highlight Jan Tjernberg for his participation in my Youtube video regarding this event. The language spoken is Portuguese but from the minutes 3:22, it is possible to see my interview in English with him. The video is below: I hope everybody likes it and I…

Oracle Code and Oracle ACE program dinner – Rome, Italy 2019

Hello, I am glad to announce that I am going to attend the Oracle Code Rome 2019 and I will join as a guest in the Oracle ACE dinner. The dinner will be on the 03rd of April and the conference on the 04th of April. This will be my first dinner as a guest at the Oracle ACE Program after my award in Hungary. I am excited for this and I hope to see all of you guys in Rome, Italy on the 04th of April. If you have…

Managing partitioned tables

Partition: Range Partition Interval Partition (extension of Range Partition) List Partition Hash Partition Reference Partition Range-Hash Partition (Subpartition) USER_TAB_PARTITIONS USER_SEGMENTS USER_PART_TABLES DBA_TAB_PARTITIONS USER_LOB_PARTITIONS Database VLDB and Partitioning Guide -> 4 Partition Administration https://www.youtube.com/watch?v=VBkpI4Ki49Q – Range Partition https://www.youtube.com/watch?v=0YYXfFcbC-A – List Partition https://www.youtube.com/watch?v=PrjI-aZrNZE – Hash Partitionhttps://www.youtube.com/watch?v=TT7aDwNFzC4 – Reference Partition https://www.youtube.com/watch?v=BESXA-k5EJU – Virtual column brunorsHi! I am Bruno, a Brazilian born and bred, and I am also a naturalized Swedish citizen. I am a former Oracle ACE and, to keep up with academic research, I am a Computer Scientist with an MSc in…

Workshop: Become a Hero with Oracle Autonomous Database in Stockholm, Sweden ( March 6, 2019)

Hej, I was invited to join in the workshop “Become a Hero with Oracle Autonomous Database” on March 06th at Sheraton Stockholm Hotel (Tegelbacken 6 101 23 Stockholm Sweden ) from March 6, 2019 – 09:00 – 16:30 . Here is the official link to this event: : https://eventreg.oracle.com/profile/web/index.cfm?PKwebID=0x614233abcd Here is the agenda: Besides this, I was selected for an Oracle Cloud promotion in complimentary credits, valid for 30 days where I will be testing the Cloud Platform and Infrastructure services. After this event I’m going to write another post…

[OCM 12C] Creating and managing partitioned indexes

” B-tree indexes: the default and the most common B-tree cluster indexes: defined specifically for cluster Hash cluster indexes: defined specifically for a hash cluster Global and local indexes: relate to partitioned tables and indexes Reverse key indexes: most useful for Oracle Real Application Clusters applications Bitmap indexes: compact; work best for columns with a small set of values Function-based indexes: contain the precomputed value of a function/expression Domain indexes: specific to an application or cartridge. “ Tips: Bitmap indexes: suitable to complex WHERE clause in SQL statements. “LONG and…

[OCM 12C] Managing extended statistics

Oracle Database Online Documentation 12c Release 1 (12.1) -> Database Administration Database -> SQL Tuning Guide Part -> V Optimizer Statistics brunorsHi! I am Bruno, a Brazilian born and bred, and I am also a naturalized Swedish citizen. I am a former Oracle ACE and, to keep up with academic research, I am a Computer Scientist with an MSc in Data Science and another MSc in Software Engineering. I have over ten years of experience working with companies such as IBM, Epico Tech, and Playtech across three different countries (Brazil,…

[OCM 12C] Capturing performance statistics

Oracle Database Online Documentation 12c Release 1 (12.1) -> Database Administration Database -> SQL Tuning Guide Part -> V Optimizer Statistics brunorsHi! I am Bruno, a Brazilian born and bred, and I am also a naturalized Swedish citizen. I am a former Oracle ACE and, to keep up with academic research, I am a Computer Scientist with an MSc in Data Science and another MSc in Software Engineering. I have over ten years of experience working with companies such as IBM, Epico Tech, and Playtech across three different countries (Brazil,…

[OCM 12C] Configuring parallel execution

Oracle Database Online Documentation 12c Release 1 (12.1)-> Database Administration -> 15 Process Architecture Oracle Database Online Documentation 12c Release 1 (12.1) -> Data Warehousing and Business Intelligence -> Database VLDB and Partitioning Guide -> 8 Using Parallel Execution brunorsHi! I am Bruno, a Brazilian born and bred, and I am also a naturalized Swedish citizen. I am a former Oracle ACE and, to keep up with academic research, I am a Computer Scientist with an MSc in Data Science and another MSc in Software Engineering. I have over ten…