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Joins are for lazy people?
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Joining in the app server can be more efficient if joining on the database causes severe redundancy in the result set sent over the network. Consider tables A and B, where each row in A is associated with 20 rows in B, B has only 100 rows, ...
Reading in a JSON File Using Swift
...{
if let jsonData = NSData(contentsOfFile: path, options: .DataReadingMappedIfSafe, error: nil)
{
if let jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(jsonData, options: NSJSONReadingOptions.MutableContainers, error: nil) as? NSDictionary
{
if ...
What is a correct mime type for docx, pptx etc?
...fice MIME types for HTTP content streaming:
Extension MIME Type
.doc application/msword
.dot application/msword
.docx application/vnd.openxmlformats-officedocument.wordprocessingml.document
.dotx application/vnd.openxmlformats-officedocument.wordprocessingml.template
.docm ap...
Difference between java.io.PrintWriter and java.io.BufferedWriter?
...rintWriter for things like writing to the console - or in "quick 'n dirty" apps where you don't want to be bothered by exceptions (and where long-term reliability isn't an issue).
I'm not sure why the "extra formatting abilities" and "don't swallow exceptions" aspects are bundled into the same clas...
Gridview with two columns and auto resized images
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another simple approach with modern built-in stuff like PercentRelativeLayout is now available for new users who hit this problem.
thanks to android team for release this item.
<android.support.percent.PercentRelativeLayout xmlns:androi...
How to determine SSL cert expiration date from a PEM encoded certificate?
...13.4 runs your shell OK ( don't judge me I am only on osx today to push an app to app store ... booting back to linux shortly ;-)
– Scott Stensland
May 9 '18 at 22:20
1
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React.js - input losing focus when rerendering
...h="/user" render={() => <UserPage/>} />
The loss of focus happens because the component prop uses React.createElement each time instead of just re-rendering the changes.
Details here: https://reacttraining.com/react-router/web/api/Route/component
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How do I run a simple bit of code in a new thread?
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@EdPower, does this apply only to Winforms.. or will it work in Web Forms..?
– MethodMan
Jan 28 '16 at 3:31
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How to select where ID in Array Rails ActiveRecord without exception
...hain complex conditions, you could even do Comment.all(:conditions => ["approved and id in (?)", [1,2,3]])
– Omar Qureshi
Sep 18 '09 at 8:23
14
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Permission denied for relation
...t;schema> TO <role>
To specify default permissions that will be applied to future tables use:
ALTER DEFAULT PRIVILEGES IN SCHEMA <schema>
GRANT <privileges> ON TABLES TO <role>;
e.g.
ALTER DEFAULT PRIVILEGES IN SCHEMA public
GRANT SELECT, INSERT, UPDATE, DELETE...