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Do I need to create indexes on foreign keys on Oracle?
...ance of an index may be unacceptable.
Most salient here would seem to be selectivity: if the values in the index would be highly duplicated then it may give better performance to drop the index (if possible) and allow a table scan.
...
Maven error “Failure to transfer…”
...ed.properties).
Then go back into Eclipse, Right-click on the project and select Maven > Update Project. I selected to "Force Update of Snapshots/Releases". Click Ok and the dependencies finally resolved correctly.
shar...
How can I get enum possible values in a MySQL database?
... This solution works on codeigniter github.com/thiswolf/codeigniter-enum-select-boxes
– You Know Nothing Jon Snow
Jul 7 '13 at 16:28
3
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How to get all Errors from ASP.Net MVC modelState?
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Using LINQ:
IEnumerable<ModelError> allErrors = ModelState.Values.SelectMany(v => v.Errors);
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Pandas - Get first row value of a given column
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To select the ith row, use iloc:
In [31]: df_test.iloc[0]
Out[31]:
ATime 1.2
X 2.0
Y 15.0
Z 2.0
Btime 1.2
C 12.0
D 25.0
E 12.0
Name: 0, dtype: float64
To select the ith val...
OR is not supported with CASE Statement in SQL Server
...sions anywhere in the SQL queries. CASE expressions can be used within the SELECT statement, WHERE clauses, Order by clause, HAVING clauses, Insert, UPDATE and DELETE statements.
A CASE expression has the following two formats:
Simple CASE expression
CASE expression
WHEN expression1 THEN Result1...
How do I get the entity that represents the current user in Symfony2?
...regular dql like
$em = $this->get('doctrine.orm.entity_manager');
"SELECT u FROM Acme\AuctionBundle\Entity\User u where u.username=".$username;
$q=$em->createQuery($query);
$user=$q->getResult();
the $user should now hold the user with this username ( you could also use other fields ...
How to get JSON from URL in JavaScript?
...getJSON() function:
$.getJSON('http://query.yahooapis.com/v1/public/yql?q=select%20%2a%20from%20yahoo.finance.quotes%20WHERE%20symbol%3D%27WRC%27&format=json&diagnostics=true&env=store://datatables.org/alltableswithkeys&callback', function(data) {
// JSON result in `data` variab...
Xcode duplicate line
... command item as the screenshot below (name them what you want):
That's: selectLine:, copy:, moveToEndOfLine:, insertNewline:, paste:, deleteBackward:
Restart Xcode and go to Preferences - Key Bindings, search for your command.
Set a key combination for the command:
Finally unleashed the power of...
Disable dragging an image from an HTML page
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But this lead to the weird selection effect in FF atleast. Better still return false;
– Bhumi Singhal
Feb 22 '13 at 10:24
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