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Postgres and Indexes on Foreign Keys and Primary Keys
Does Postgres automatically put indexes on Foreign Keys and Primary Keys? How can I tell? Is there a command that will return all indexes on a table?
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android: stretch image in imageview to fit screen
I have an imageview that has its height and width set to fill_parent with a linearlayout that has the same values set. So I suppose this should set my images to fit the screen. But it only fits like 80% (margin top and bottom in landscape mode).
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What does $$ (dollar dollar or double dollar) mean in PHP?
... variable thas has its name contained in $name"
Which is $real_variable
And has the value 'test'
EDIT after @Jhonny's comment :
Doing a $$$ ?
Well, the best way to know is to try ;-)
So, let's try this portion of code :
$real_variable = 'test';
$name = 'real_variable';
$name_of_name = '...
Why would you use Expression rather than Func?
I understand lambdas and the Func and Action delegates. But expressions
stump me.
10 Answers
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Understanding :source option of has_one/has_many through of Rails
Please help me in understanding the :source option of has_one/has_many :through association. The Rails API explanation makes very little sense to me.
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How to hide “Showing 1 of N Entries” with the dataTables.js library
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try this for hide
$('#table_id').DataTable({
"info": false
});
and try this for change label
$('#table_id').DataTable({
"oLanguage": {
"sInfo" : "Showing _START_ to _END_ of _TOTAL_ entries",// text you want show for info section
},
});
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Does MySQL foreign_key_checks affect the entire database?
When I execute this command in MySQL:
6 Answers
6
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Where to find extensions installed folder for Google Chrome on Mac?
...t help, you can always do a custom search.
Go to chrome://extensions/, and find out the ID of an extension (32 lowercase letters) (if not done already, activate "Developer mode" first).
Open the terminal, cd to the directory which is most likely a parent of your Chrome profile (if unsure, try ...
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
... is that my genius project manager thinks that boost is another dependency and that it is horrible because "you depend on it"(I tried explaining the quality of boost, then gave up after some time :( ). Smaller reason why I would like to do it is that I would like to learn c++11 features, because peo...
How to provide animation when calling another activity in Android?
I have two Activities A and B. I want to have the shrink Animation when
Activity A calls B and maximize animation when Activity B calls A. I don't need the animation xml files for this.
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