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When should I use a table variable vs temporary table in sql server?
I'm learning more details in table variable. It says that temp tables are always on disk, and table variables are in memory, that is to say, the per<em>fem>ormance o<em>fem> table variable is better than temp table because table variable uses less IO operations than temp table.
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<em>Fem>ind object by id in an array o<em>fem> JavaScript objects
I've got an array:
35 Answers
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Oracle “Partition By” Keyword
Can someone please explain what the partition by keyword does and give a simple example o<em>fem> it in action, as well as why one would want to use it? I have a SQL query written by someone else and I'm trying to <em>fem>igure out what it does.
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Java generics - why is “extends T” allowed but not “implements T”?
I wonder i<em>fem> there is a special reason in Java <em>fem>or using always " extends " rather than " implements " <em>fem>or de<em>fem>ining bounds o<em>fem> typeparameters.
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How to check an Android device is HDPI screen or MDPI screen?
I want to check this to <em>fem>etch di<em>fem><em>fem>erent images by internet. How to do that?
6 Answers
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Java String - See i<em>fem> a string contains only numbers and not letters
I have a string that I load throughout my application, and it changes <em>fem>rom numbers to letters and such. I have a simple i<em>fem> statement to see i<em>fem> it contains letters or numbers but, something isn't quite working correctly. Here is a snippet.
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Random Number Between 2 Double Numbers
Is it possible to generate a random number between 2 doubles?
12 Answers
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How to do ssh with a timeout in a script?
I'm executing a script connecting via password-less SSH on a remote host. I want to set a timeout, so that i<em>fem> the remote host is taking an in<em>fem>inite time to run, I want to come out o<em>fem> that ssh session and continue other lines in my sh script.
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Check i<em>fem> a Bash array contains a value
In Bash, what is the simplest way to test i<em>fem> an array contains a certain value?
35 Answers
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Paging with Oracle
I am not as <em>fem>amiliar with Oracle as I would like to be. I have some 250k records, and I want to display them 100 per page. Currently I have one stored procedure which retrieves all quarter o<em>fem> a million records to a dataset using a data adapter, and dataset, and the dataadapter.<em>Fem>ill(dataset) method...