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Three Learnings Small Businesses Should Take From 2020 Into 2021

The United States has seen an increase in new businesses formed this year. According to the United State Census Bureau, in week 50, there were over 86,000 new business applications nationwide — representing a 38% increase over filings during the same week in 2019. The challenges small businesses have experienced in 2020 have led to some core lessons that those in the business community need to apply — whether they own an established small business or a newly formed one.




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Three impossibilities with partitioned indexes

articles: 

There are three restrictions on indexing and partitioning: a unique index cannot be local non-prefixed; a global non-prefixed index is not possible; a bitmap index cannot be global. Why these limitations? I suspect that they are there to prevent us from doing something idiotic.

This is the table used for all examples that follow:

CREATE TABLE EMP
      (EMPNO NUMBER(4) CONSTRAINT PK_EMP PRIMARY KEY,
       ENAME VARCHAR2(10),
       JOB VARCHAR2(9),
       MGR NUMBER(4),
       HIREDATE DATE,
       SAL NUMBER(7,2),
       COMM NUMBER(7,2),
       DEPTNO NUMBER(2) )
PARTITION BY HASH (EMPNO) PARTITIONS 4;

the usual EMP table, with a partitioning clause appended. It is of course a contrived example. Perhaps I am recruiting so many employees concurrently that a non-partitioned table has problems with buffer contention that can be solved only with hash partitioning.

Why can't I have a local non-prefixed unique index?
A local non-unique index is no problem, but unique is not possible:

orclz> create index enamei on emp(ename) local;

Index created.

orclz> drop index enamei;

Index dropped.

orclz> create unique index enamei on emp(ename) local;
create unique index enamei on emp(ename) local
                              *
ERROR at line 1:
ORA-14039: partitioning columns must form a subset of key columns of a UNIQUE index

You cannot get a around the problem by separating the index from the constraint (which is always good practice):

orclz> create index enamei on emp(ename) local;

Index created.

orclz> alter table emp add constraint euk unique (ename);
alter table emp add constraint euk unique (ename)
*
ERROR at line 1:
ORA-01408: such column list already indexed


orclz>

So what is the issue? Clearly it is not a technical limitation. But if it were possible, consder the implications for performance. When inserting a row, a unique index (or a non-unique index enforcing a unique constraint) must be searched to see if the key value already exists. For my little four partition table, that would mean four index searches: one of each local index partition. Well, OK. But what if the table were range partitioned into a thousand partitions? Then every insert would have to make a thousand index lookups. This would be unbelievably slow. By restricting unique indexes to global or local prefixed, Uncle Oracle is ensuring that we cannot create such an awful situation.

Why can't I have a global non-prefixed index?
Well, why would you want one? In my example, perhaps you want a global index on deptno, partitioned by mgr. But you can't do it:

orclz> create index deptnoi on emp(deptno) global partition by hash(mgr) partitions 4;
create index deptnoi on emp(deptno) global partition by hash(mgr) partitions 4
                                                                *
ERROR at line 1:
ORA-14038: GLOBAL partitioned index must be prefixed


orclz>
This index, if it were possible, might assist a query with an equality predicate on mgr and a range predicate on deptno: prune off all the non-relevant mgr partitions, then a range scan. But exactly the same effect would be achieved by using global nonpartitioned concatenated index on mgr and deptno. If the query had only deptno in the predicate, it woud have to search each partition of the putative global partitioned index, a process which would be just about identical to a skip scan of the nonpartitioned index. And of course the concatenated index could be globally partitioned - on mgr. So there you have it: a global non-prefixed index would give you nothing that is not available in other ways.

Why can't I have a global partitioned bitmap index?
This came up on the Oracle forums recently, https://forums.oracle.com/thread/2575623
Global indexes must be prefixed. Bearing that in mind, the question needs to be re-phrased: why would anyone ever want a prefixed partitioned bitmap index? Something like this:

orclz>
orclz> create bitmap index bmi on emp(deptno) global partition by hash(deptno) partitions 4;
create bitmap index bmi on emp(deptno) global partition by hash(deptno) partitions 4
                                       *
ERROR at line 1:
ORA-25113: GLOBAL may not be used with a bitmap index

orclz>

If this were possible, what would it give you? Nothing. You would not get the usual benefit of reducing contention for concurrent inserts, because of the need to lock entire blocks of a bitmap index (and therefore ranges of rows) when doing DML. Range partitioning a bitmap index would be ludicrous, because of the need to use equality predicates to get real value from bitmaps. Even with hash partitions, you would not get any benefit from partition pruning, because using equality predicates on a bitmap index in effect prunes the index already: that is what a bitmap index is for. So it seems to me that a globally partitioned bitmap index would deliver no benefit, while adding complexity and problems of index maintenance. So I suspect that, once again, Uncle Oracle is protecting us from ourselves.

Is there a technology limitation?
I am of course open to correction, but I cannot see a technology limitation that enforces any of these three impossibilities. I'm sure they are all technically possible. But Oracle has decided that, for our own good, they will never be implemented.
--
John Watson
Oracle Certified Master DBA
http://skillbuilders.com




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Ep3: Three Princples of Success as It Could Apply to Bodybuilding

Hey there, podcast enthusiasts and bodybuilding aficionados! Get ready to pump up your life with Episode 3: "Three Principles of Success as It Could Apply to Bodybuilding." This episode is a powerhouse of inspiration, and I'm here to give you a sneak peek into what's in store. Buckle up, grab your protein shake, and let's dive in!

Principle 1: Effort - Take Action!

  • Take Action: Don't just dream; start moving towards your goals.
  • Take Your Best Shots in Life: Give everything you've got, whether in the gym or in life.
  • Beware of Discouragement: It's your number one opponent. Don't let setbacks hold you back.

Principle 2: Focus - Swing for Something Specific!

  • Swing for Something Specific: Set clear, achievable goals.
  • Avoid Distraction: Stay focused and patient.
  • Gain Momentum: Keep moving forward, even when things get tough.

Principle 3: Reason - Make an Informed Decision!

  • Make an Informed Decision: Research before you leap, whether it's a new supplement or a training program.
  • What Should I Focus My Effort On?: Pick a single goal and go for it.
  • How to Best Use Your Time: It's not just about spending time in the gym; it's about making the most of it.

These principles aren't just words; they're a way of life. Whether you're a seasoned bodybuilder or just starting your fitness journey, these insights can transform the way you approach your goals. So grab a pen, paper, or your favorite note-taking app, and get ready to change your life!

Key Takeaways

  • Print Your Workout: Have a plan, and you'll be more efficient and focused.
  • Defeat Discouragement and Distraction: With a clear plan and specific goals, you can overcome these common obstacles.
  • Apply These Principles to Life: Whether it's bodybuilding, business, or personal growth, these principles are universal.

Call to Action

Ready to take your bodybuilding and fitness journey to the next level? Tune in to this episode and let these principles guide you to success. And hey, why not share your thoughts and progress with our community? We're all in this together!

---

I do hope you enjoyed this episode of the podcast. Here's some helpful resources including any sites that were mentioned in this episode.

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How to Contact Me:


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Subscribe: Find subscriber links on my site, add to your podcast player, or listen on the web players on my site.

Listen to JustAskMarc Bodybuilding and Fitness

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Support this Podcast with a Tip

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Three Column Blogger Template

This is by far the best site to download three column blogger template. It has all the blogger templates and it is really easy to install. Most of the sites I've visited have very limited templates or either have problems or makes it very difficult for a beginner to install. Check Webtalks blog out.




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Hunter Biden was indicted Thursday on nine charges – including three felonies

Hunter Biden was indicted Thursday on nine charges – including three felonies | 7 Dec 2023 | Hunter Biden was indicted Thursday on nine charges – including three felonies – in part for allegedly dodging over $1 million in taxes while living a hard-partying “extravagant” life over a four-year period. The three felonies leveled against […]




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Three Bondage Slavegirls

These luscious captives are from Dungeon21, a site that’s been defunct for many years: Elsewhere on Bondage Blog: Three Women In Prison A Blowjob Booth At The Slave Fair New Girls Gagged And Hogtied Three Pretty Prisoners Three Submissive Women




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@cspratt15139 RT @JackAda07710351 I found that three arrow capitol is using bot to dump all invested tokens to the market that include $ddx. They are selling at big loss. The company is near bankruptcy, but $ddx will have a bright future after main

RT @JackAda07710351: I found that three arrow capitol is using bot to dump all invested tokens to the market that include $ddx. They are se…




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Three Hungry Crocodiles, by Claude Rutagengwa

Three hungry crocodiles were lying in the sun. One said, "I wish I could eat a young tender child."




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R13 Rewind: Part Three

We roll back to 2013 to bring an interview with the legendary Brant Bjork (of Vista Chino back then). From their headline show at The Roundhouse.




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Uganda: Three in Ten Sex Workers Are HIV-Positive - Survey

[Nile Post] The survey, conducted across 12 districts, was presented at Makerere University's School of Public Health, shedding light on the urgent need for targeted interventions to address the HIV epidemic among this vulnerable population.




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South Africa: Women in SA Could Have Access to a Three-Monthly HIV Prevention Ring By 2026

[spotlight] A flexible silicone ring that slowly releases antiretrovirals is one of just two long-acting HIV prevention products registered for use in South Africa. Results from a new study might pave the way for a longer-acting version of the vaginal ring that provides three months of protection at a time, as opposed to one month with the current ring. Elri Voigt reports on these findings and looks at how the one-month ring has influenced HIV prevention choices in South Africa.





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In Chandigarh, a popular three-year-old Pizza ATM is up for renewal

The Pizza ATM at Chandigarh’s Sukhna Lake is popular for it’s ready-in-three-minutes pizza. Rohit Shekhar Sharma tells us how he built it, and why he wants to keep it running




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The top three places in North Goa to rent for a lot of money

North Goa may be the best option if you want to invest in real estate in Goa and make significant profits. The area is an investment-friendly destination because it attracts large numbers of tourists year-round and because properties such as … Continue reading



  • Real Estate News
  • Famous places in Goa
  • Goa's real estate
  • Goa's real estate market
  • India's real estate market

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Three-quarters of most visited websites not compliant with privacy regs

A new report finds that 75 percent of the 100 most visited websites in the US and Europe are not compliant with current privacy regulations. The study from privacy solution provider Privado.ai shows despite stricter privacy enforcement in Europe a surprising 74 percent of top websites do not honor opt-in consent as required by Europe's General Data Protection Regulation (GDPR). Although top websites in the US have a similar non-compliance rate of 76 percent for not honoring opt-out consent as required by the California Privacy Rights Act (CPRA), Privado finds the median volume of compliance risks to be three times… [Continue Reading]




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Male and Female - Part Three

Fr. Stephen completes his short series on the true meaning of male and female in Orthodox teaching.




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Three Strategies for a Happy New Year

Speaking of time—the new year is upon us! It's a season when lots of people are thinking of goals and self-improvement. In this episode, Dr. Roccas shares some strategies she has learned as a writing consultant about how to set goals without becoming perfectionistic or destructive . . . also, why shell collecting is a perfectly good new year's resolution.




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Teaching Doctrine in the World We Live in Today - Part Three

Fr. Thomas concludes his three-part lecture on teaching doctrine given in June 2008 at the Met. Andrey Sheptytsky Institute in Ottawa.




three

Bishops - Part 11: Three 6th Century Figures of Great Influence

In the 6th Century, three individuals played a huge role in forming and influencing the ecclesiastical structure of the Church. They were the Emperor Justinian, Pope Gregory the Great of Rome, and Dionysius the Areopagite. Fr. Tom deals with the first 2 here and the third in the next episode.




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The First Three Days of Holy Week - Part 1

In a 6 part reflection, Fr. Tom Hopko examines the first three days of Holy Week and the significance of the scripture and verses as we prepare for Great and Holy Pascha. In this first episode, he gives an overview of the 3 days and the services we will be a part of.




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The First Three Days of Holy Week - Part 2

In part 2, Fr. Tom reflects on the Bride, the Bridegroom, and the garments. Why was the man with no wedding garment cast out?




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The First Three Days of Holy Week - Part 3

Next is the parable of the fig tree and the imagery of leaves and fruit.




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The First Three Days of Holy Week - Part 4

Then we have Joseph and his brothers showing us through this intricate biblical story, the imagery of Christ and His Passion.




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The First Three Days of Holy Week - Part 5

In the 5th episode, Fr. Tom reflects on the conflicts between Christ and the leaders of the day.




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The First Three Days of Holy Week - Part 6

Finally, Fr. Tom looks at the Harlot and Judas depicting two diverse models for the treatment of The Christ.




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Exodus - Part Three

Dr. Constantinou continues her new series on Exodus, this time focusing on Moses and the burning bush.




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Leviticus - Part Three

Dr. Constantinou continues her discussion of Leviticus, touching a bit on the forthcoming Temple.




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Numbers - Part Three

Dr. Constantinou contemplates the person of Moses, the behavior of the Hebrews, and the Moses typology in the Gospels.




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Joshua - Part Three

Dr. Constantinou continues her study in the book of Joshua. This is lesson 79 in her series "Introduction to the Bible."




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Isaiah 7 - Part Three

Dr. Constantinou discusses the Virgin Birth according to the teachings of the Church Fathers.




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Ezekiel: Part Three

Dr. Constantinou continues her discussion of the prophet Ezekiel.




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Daniel: Part Three

Dr. Jeannie Constantinou shares insights from the writings of the early Church Fathers on the Book of Daniel.




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Daniel and the Three Youths

Fr. Tom continues to look at worship in the Old Testament as a prelude to his in-depth teaching on the Divine Liturgy. Today is part one of a two-part episode concentrating on Daniel and the Three Youths. He begins with an overview of Daniel.




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Daniel and the Three Youths - Part 2

Fr. Tom now looks at the story of the three youths in the flaming furnace and the beautiful correlation to our worship as Orthodox Christians.




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Three Lessons from the Healing of the Paralytic

Guest homilist Hieromonk Alexander (Reichert) shares encouragement from the Healing of the Paralytic.




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The Strength of a Threefold Cord

Fr. John shares about the sanctity of marriage and familial love. He also draws from the relationship of Saints Peter and Febronia as examples of the importance of commitment to Christ.




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The Three Great Hierarchs and the Families that Produced Them

Fr. John Whiteford recounts the significance of the family life in making saints.




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Fasting Part Three: Fasting as a Rehearsal of Death

Fr. Seraphim Aldea continues his series on fasting.




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The Three Entry Gates for Lust

We often gather our forces to fight our spiritual enemies at the wrong 'gate' of our being. Most frequently, evil enters our life through the gates of our mind and heart, not that of the body. We need to pay attention and learn the behaviour of the evil one, so we may guard well the fortress of our being. Once we learn to decode his behaviour, we can finally begin to plan a strategy to fight back.




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Monday Dec 17 - Holy Prophet Daniel and the Three Holy Youths Ananias, Azarias and Misael




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Dec 17 -  Holy Prophet Daniel And The Three Holy Youths




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Holy Prophet Daniel and the Three Holy Youths Ananias, Azarias, and Misael




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Jan 30 - The Three Holy Hierarchs




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Synaxis of the Three Holy Hierarchs




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Hieromartyr Patrick, Bishop of Prusa, and Three Priests with Him




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St Hieron and His Thirty-Three Companions, Martyred at Melitene




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Martyrs Sophia and Her Three Daughters, Faith, Hope, and Love




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Jun 28 - Synaxis Of The Icon Of The Theotokos “Of The Three Hands”




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Synaxis of the Icon of our Most Holy Lady the Theotokos “Of the Three Hands”




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St. Hieron and His Thirty-Three Companions, Martyred at Melitene