Tutorial by Examples: cas

MATLAB R2016b featured a generalization of its scalar expansion1,2 mechanism, to also support certain element-wise operations between arrays of different sizes, as long as their dimension are compatible. The operators that support implicit expansion are1: Element-wise arithmetic operators: +, -,...

C++ #include "opencv2/objdetect/objdetect.hpp" #include "opencv2/highgui/highgui.hpp" #include "opencv2/imgproc/imgproc.hpp" #include <iostream> #include <stdio.h> using namespace std; using namespace cv; // Function Headers void detectAndDisp...

If you want to sort your data numerically or alphabetically, you can simply use order by [column]. If you want to sort using a custom hierarchy, use a case statement. Group ----- Total Young MiddleAge Old Male Female Using a basic order by: Select * from MyTable Order by Group retur...

Case 1: While using in the place of method arguments. If a method requires an object of wrapper class as argument.Then interchangeably the argument can be passed a variable of the respective primitive type and vice versa. Example: int i; Integer j; void ex_method(Integer i)//Is a valid statem...

Use the below command to check the replica set status. Command : rs.status() Connect any one of replica member and fire this command it will give the full state of the replica set Example : { "set" : "ReplicaName", "date" : ISODate("2016-09-26T07:3...

In a simple case statement, one value or variable is checked against multiple possible answers. The code below is an example of a simple case statement: SELECT CASE DATEPART(WEEKDAY, GETDATE()) WHEN 1 THEN 'Sunday' WHEN 2 THEN 'Monday' WHEN 3 THEN 'Tuesday' WHEN 4 THEN 'Wednes...

to_upper(): #include <iostream> #include <string> #include <boost/algorithm/string.hpp> using namespace std; int main() { // String to convert characters to uppercase string str = "ThIS iS SUpPoSEd tO Be UpPeR CAsE."; // Convert characters i...

class Program { static void Main(string[] args) { //Initialize a new container WindsorContainer container = new WindsorContainer(); //Register IService with a specific implementation and supply its dependencies container.Register(Component.For<ISer...

CASE lv_foo. WHEN 1. WRITE: / 'lv_foo is 1'. WHEN 2. WRITE: / 'lv_foo is 2'. WHEN 3. WRITE: / 'lv_foo is 3'. WHEN OTHERS. WRITE: / 'lv_foo is something else'. ENDCASE

Routes in Laravel are case-sensitive. It means that a route like Route::get('login', ...); will match a GET request to /login but will not match a GET request to /Login. In order to make your routes case-insensitive, you need to create a new validator class that will match requested URLs agains...

Strings can be compared with the == operator in Julia, but this is sensitive to differences in case. For instance, "Hello" and "hello" are considered different strings. julia> "Hello" == "Hello" true julia> "Hello" == "hello" fa...

Use dynamic_cast<>() as a function, which helps you to cast down through an inheritance hierarchy (main description). If you must do some non-polymorphic work on some derived classes B and C, but received the base class A, then write like this: class A { public: virtual ~A(){} }; class B...

A broadcast join copies the small data to the worker nodes which leads to a highly efficient and super-fast join. When we are joining two datasets and one of the datasets is much smaller than the other (e.g when the small dataset can fit into memory), then we should use a Broadcast Hash Join. The f...

In your Maven project, add the following to your pom.xml file. The following versions are for Cassandra 3.x. <dependency> <groupId>com.datastax.cassandra</groupId> <artifactId>cassandra-driver-core</artifactId> <version>3.1.0</ve...

Connecting to Cassandra is very similar to connecting to other datasources. With Cassandra, credentials are not required. String cassandraIPAddress = "127.0.0.1"; String cassandraKeyspace = "myKeyspace"; String username = "foo"; String password = "bar"; ...

A LocalDate is a date without a timezone. Consider using them when you are only concerned with the year, month, and day of month and are not interested in an exact time. For example, when we write our date of birth (such as 1960-01-01) we don't care about the timezone in which it happened.

TEST CASE – A test case is a set of conditions and steps that when followed/applied, a tester can determine whether a feature, an application or a software system is working as originally designed. A test case usually contains References to the original task, Pre-conditions ( if the pre-conditions...

In order to achieve type safety sometimes we want to avoid the use of primitive types on our domain. For instance, imagine a Person with a name. Typically, we would encode the name as a String. However, it would not be hard to mix a String representing a Person's name with a String representing an e...

This is just an extension on the sealed trait variant where a macro generates a set with all instances at compile time. This nicely omits the drawback that a developer can add a value to the enumeration but forget to add it to the allElements set. This variant especially becomes handy for large en...

Using a CASE statement, conditionally display an expression in the column based on values found in another column, a.k.a. “my kingdom for an OR”. In the example, the result is obtained when the status of the transaction is Pending Fulfillment or Partially Fulfilled: CASE DECODE( {status}, 'Pending ...