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"About the scenario, there are insert transactions on every 3 seconds. In a busy day, about 3000 rows for big table, another 100 for medium table and around 30 for small table."

There is a question for this sentence "1 row every 3 seconds? Or many rows (3000) every 3 seconds? Very unclear"

So what can be done prevent vagueness here ? And what did you understand from that ?

Edit: Extra info for those who didn't familiar with computer databases. Topic is related to an internet server database.

About the transactions, they don't related with marketing. Simple explanation from wikipedia "A transaction comprises a unit of work performed within a database management system against a database, and treated in a coherent and reliable way independent of other transactions."

Inserts are also about entering data to database. An insert can contain only 1 row or it can contain multiple rows:

http://www.w3schools.com/php/php_mysql_insert.asp

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closed as not a real question by tchrist, J.R., RegDwigнt Mar 2 '13 at 17:46

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer 1

The two sentences are not at all clear, nor are they written in idiomatic English. What kind of transactions are being talked about besides inserts? The numbers don't make sense to me. Do they mean that every 3 seconds on a busy day, there are 3000 simultaneous inserts (one per row) in a large table, 100 in a medium table, and 30 in a small table?

It seems that the scenario is a spreadsheet that shows, for example, prices or number of shares bought/sold for individual stocks. Because of the frequency of buy/sell transactions, prices change frequently during the day. There are three different table sizes: large, medium, and small. Every 3 seconds on a busy day, there 3000 simultaneous inserts (one per row) in a large table, 100 in a medium table, and 30 in a small table.

I'm only guessing at what these sentences want to say. If this seems not helpful, I'll delete it.

There are three tables: large, medium, and small. Every 3 seconds on a busy day, there 3000 simultaneous inserts (one per row) in a large table, 100 in a medium table, and 30 in a small table. Each insert changes the previous value in the cell to show the new value after the latest {transaction / insert [CHOOSE ONE]}.

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i've edited question to make it more clear (hopefully) –  motto Mar 2 '13 at 1:43
    
@motto: Thank you for the explanation. I've edited my answer and hope that this new version is more helpful. Again, if you think it's not, I'll just delete it. Maybe one of our many programmers will be able to give you a better way of saying what you want to say. –  user21497 Mar 2 '13 at 2:32

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