大约有 6,887 项符合查询结果(耗时:0.0199秒) [XML]
MongoDb query condition on comparing 2 fields
...irly slow (has to execute Javascript code on every record) so combine with indexed queries if you can.
db.T.find( { $where: function() { return this.Grade1 > this.Grade2 } } );
or more compact:
db.T.find( { $where : "this.Grade1 > this.Grade2" } );
UPD for mongodb v.3.6+
you can use $expr as...
SQL Server: SELECT only the rows with MAX(DATE)
...the other solutions here on a ~3.5M row dataset, however SSMS suggested an index that cut execution time in half. Thanks!
– easuter
Aug 20 '15 at 8:38
...
How to access class constants in Twig?
...it's possible to do following (instantiate Entity class) $this->render('index.html.twig', ['entity' => new Entity()]);
– Alexandr Tsyganok
Apr 23 '19 at 20:05
add a comm...
Using gradle to find dependency tree
...eport
Report can normally be found in build/reports/project/dependencies/index.html
It looks like this:
share
|
improve this answer
|
follow
|
...
How to check if a string array contains one string in JavaScript? [duplicate]
...
There is an indexOf method that all arrays have (except Internet Explorer 8 and below) that will return the index of an element in the array, or -1 if it's not in the array:
if (yourArray.indexOf("someString") > -1) {
//In the ar...
Unbound classpath container in Eclipse
...he "project file"
Install JDK1.5 from http://java.sun.com/javase/downloads/index_jdk5.jsp and see whether you can fix paths
share
|
improve this answer
|
follow
...
How to get a property value based on the name
...
Instead of passing property value can I pass index and get the property name and value ( so I can loop through all the property)?
– singhswat
Oct 4 '18 at 11:03
...
Node.js - getting current filename
...sion you can do something like this.
module.filename.slice(__filename.lastIndexOf(path.sep)+1, module.filename.length -3);
share
|
improve this answer
|
follow
...
How to remove extension from string (only real extension!)
...om the manual, pathinfo:
<?php
$path_parts = pathinfo('/www/htdocs/index.html');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // Since PHP 5.2.0
?>
It doesn't have to be a...
Colorize logs in eclipse console
...ou may consider trying Apache Chainsaw (http://logging.apache.org/chainsaw/index.html) if you are already working with log4j. Lets you define colors and filtern and works with (nearly) zero configuration.
share
|
...