Recent posts

Successful execution of two queries, one after the other

I need to execute two queries, one after the other. If, almost all results of both the queries overlap and if the result of first query is stored in the memory, will it reduce the execution time of the second query?



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Sarahjeanne Written on 11/07/2011 in Question

Number of memory operations performed in a user programme

Can you please state the number of memory operations performed, when a memory load operation is executed in a user program me?



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Rosheen Written on 11/07/2011 in Question

Difference between Group by and Order by statements

In SQL, what is the difference between Group by and Order by statements? Also, I would like to know which statement to choose in a scenario where you need to count something? Can you please define the sub-query method used in Group by statement? ?



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Richardine Written on 11/07/2011 in Question

About primary key, foreign key and unique key

I would like to know about the advantages and disadvantages of primary key, foreign key and unique key. Is it possible to use two null values in unique key?
 



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Gaynor Written on 11/07/2011 in Question

Normalization pattern implemented in a scenario

Can you please suggest a normalization pattern that can be implemented in a scenario where data have the same invoice number but different information like cost, supplier etc.?



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Frannie Written on 11/07/2011 in Question

Problems with interconnecting 2 personal computers

Hi,

I’m just new on this networking set-up. I hope i could get some idea here. I’m planning to set up small network at home. I have two PC, that i want to network. I want them in a 1 workgroup. I configure it in properties -> sharing. How come...



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carol hatch Written on 11/07/2011 in Question

FaceBook “hello” virus problem solution

Hi,

I have a bad experienced on FACEBOOK. One day accidentally i forgot to log out my account and after in just an hour all of my friends received this message “Hello” when my friends made a response it message like this “Wanna laugh?”

Then next message is “ I saw...



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alleya smith Written on 11/07/2011 in Question

How to connect PC remotely without admin permission

This is my question regarding on how to connect PC remotely, I am in the US and my client is in abroad with a different provider. Does he gave me permission to connect to her PC or not? What kind of information would I need?



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chris allen Written on 11/07/2011 in Question

What’s the best provider in PHILIPPINES (point to point connection)

I want to ask your opinions on what is the best internet provider here in the Philippines? Between 2 PC, I want to have a reliable, unlimited access, the provider should have a bandwidth on demand service because sometime we upload many files especially the end of the month. Forward your suggestion please.



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ronaln mcgay Written on 11/07/2011 in Question

How to find automatic email software for invitations

 

How can I send emails to my client automatically using time set program email  were the program automatically sends email everytime you program it to DATE and TIME. I work in a company that sends bulk of email everyday in a different schedule or time, this is more on...



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michael spear Written on 11/07/2011 in Question