yourdevel

SQL 'like' vs '=' performance This question skirts around what I'm wondering, but the answers don't exactly address it. It would seem that in general '=' is faster than 'like' when using wildcards. This appears to be the conventional wisdom. However, lets suppose I have a column containing a limited number of different fixed, hardcoded, varchar identifiers, and I want to select all rows matching..

Spread load evenly by using ‘H * * * *’ rather than ‘5 * * * *’ When setting up how Jenkins shoul pull changes from subversion I tried checked Poll SCM and set schedule to 5 * * * *, I get the following warning Spread load evenly by using ‘H * * * *’ rather than ‘5 * * * *’ I'm not sure what H means in this context and why I should use that. H stands for Hash To allow periodically scheduled task..

Spring Boot Test ignores logging.level One of my maven module ignores my logging levels when running tests. In src/test/resources I have application.properties: app.name=bbsng-import-backend app.description=Import Backend Module for Application spring.profiles.active=test # LOGGING logging.level.root=error logging.level.org.springframework.core =fatal logging.level.org.springframework.beans=fata..

What is ngDefaultControl in Angular? No, this is not a duplicate question. You see, there is a ton of questions and issues in SO and Github that prescribe that I add this directive to a tag that has [(ngModel)] directive and is not contained in a form. If I don't add it I get an error: ERROR Error: No value accessor for form control with unspecified name attribute Ok, error goes away if I put th..

How to remove installed ri and rdoc? How can I remove the ri and rdoc of installed gems? Thanks You can simply remove the doc directory in the RubyGems installation directory. rm -r `gem env gemdir`/doc On Mac OS X by default, it's /Library/Ruby/Gems/1.8/doc. Keep in mind that there might be several installation directories for RubyGems. RubyGems will try to install to your user directory (somet..

Problems when trying to load a package in R due to rJava When I type require(xlsx) in order to load the package xlsx in R, the following messages is shown: > require(xlsx) Loading required package: xlsx Loading required package: xlsxjars Loading required package: rJava Error : .onLoad failed in loadNamespace() for 'rJava', details: call: fun(libname, pkgname) error: JAVA_HOME cannot be determine..

Forcing a ng-src reload How can I force angularjs to reload an image with an ng-src attribute, when the url of the image has not changed, but its contents has? An uploadReplace service that performs a file upload, is replacing the content of the image, but not the url. app.factory('R4aFact', ['$http', '$q', '$route', '$window', '$rootScope', function($http, $q, $route, $window, $rootScope) { ret..

How to choose cross-entropy loss in tensorflow? Classification problems, such as logistic regression or multinomial logistic regression, optimize a cross-entropy loss. Normally, the cross-entropy layer follows the softmax layer, which produces probability distribution. In tensorflow, there are at least a dozen of different cross-entropy loss functions: tf.losses.softmax_cross_entropy tf.losses.s..

How to monitor delayed_job with monit Are there any examples on the web of how to monitor delayed_job with Monit? Everything I can find uses God, but I refuse to use God since long running processes in Ruby generally suck. (The most current post in the God mailing list? God Memory Usage Grows Steadily.) Update: delayed_job now comes with a sample monit config based on this question. Here is how ..

How to get the global object in JavaScript? I want to check in a script if a certain other module is already loaded. if (ModuleName) { // extend this module } But if ModuleName doesn't exist, that throws. If I knew what the Global Object was I could use that. if (window.ModuleName) { // extend this module } But since I want my module to work with both browsers and node, rhino, etc., I can't assu..