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“use database_name” command in PostgreSQL
... testdatabase
At this point you might see the following output
You are now connected to database "testdatabase" as user "user_name".
testdatabase=#
Notice how the prompt changes. Cheers, have just been hustling looking for this too, too little information on postgreSQL compared to MySQL and th...
How do I run a node.js app as a background service?
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cool part to know: nohup stands for no hangup which comes from the old days, where you wanted you keep a process alive when you "hangup" your modem.
– jAndy
Oct 28 '10 at 19:48
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Android equivalent of NSUserDefaults in iOS
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Update 2015: Android recommends the use of apply() now over commit() because apply() operates on a background thread instead of storing the persistent data immediately and possible blocking the main thread.
– AppsIntheParkNYC
Jul 6 '15 a...
Using union and order by clause in mysql
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This was working great for older MySQL versions, now this approach will NOT work. Because SQL standard do not guarantee to preserve order of subquery.
– Andrei
Jun 18 '18 at 5:51
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What is the difference between display: inline and display: inline-block?
...lt;em> element, you need to set this element to display: inline-block;. Now you can add a height to the element and every other block style (the block part of inline-block), but it is placed in a sentence (the inline part of inline-block).
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How do I convert a string to a double in Python?
I would like to know how to convert a string containing digits to a double.
3 Answers
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Allow Google Chrome to use XMLHttpRequest to load a URL from a local file
...requests.
I'm not aware of if this also works for local files, but let us know !
And mention, this does exactly what you expect, it disables the web security, so be careful with it.
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What is the difference between single and double quotes in SQL?
...DUCT.id 'product_id'
Either works in Oracle, SQL Server, MySQL… but I know some have said that the TOAD IDE seems to give some grief when using the single quotes approach.
You do have to use single quotes when the column alias includes a space character, e.g., product id, but it's not recommend...
HTML File Selection Event
... I think @anthony is referring to the following scenario: Select a file. Now open the file selector again, but this time click on Cancel. Since no file was selected the second time, the file input control resets, thus changing its initial selection, and the change event is fired.
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Meaning of numbers in “col-md-4”,“ col-xs-1”, “col-lg-2” in Bootstrap
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Applies to Bootstrap 3 only.
Ignoring the letters (xs, sm, md, lg) for now, I'll start with just the numbers...
the numbers (1-12) represent a portion of the total width of any div
all divs are divided into 12 columns
so, col-*-6 spans 6 of 12 columns (half the width), col-*-12 spans 12 of 12 ...