Tutorial by Topics: at

Sqoop incremental import comes into picture because of a phenomenon called CDC i.e. Change Data Capture. Now what is CDC? CDC is a design pattern that captures individual data changes instead of dealing with the entire data. Instead of dumping our entire database, using CDC, we could capture ju...

The Decorator pattern allows you to add or modify behavior of objects in a situational way without affecting the base object. This can be achieved though plain Ruby using the stdlib, or via popular gems such as Draper.

DateTime.new(year, month, day, hour, minute, second) Before using DateTime you need to require 'date'

This section provides an overview of what datetime is, and why a developer might want to use it. It should also mention any large subjects within datetime, and link out to the related topics. Since the Documentation for datetime is new, you may need to create initial versions of those related to...

Aspect ratios are often expressed as a width:height ratio which is often - but not always - simplified and sometimes also as a simple floating point integer. All of the following aspect ratios are the same value expressed in different ways: 1280:720 16:9 1.7777777777777777777777777777778 ...

The CoordinatorLayout is a super-powered FrameLayout and goal of this ViewGroup is to coordinate the views that are inside it. The main appeal of the CoordinatorLayout is its ability to coordinate the animations and transitions of the views within the XML file itself. CoordinatorLayout is intended...

for ($i = 0; $i < count($array); $i++) { incremental_iteration(); } for ($i = count($array) - 1; $i >= 0; $i--) { reverse_iteration(); } foreach ($data as $datum) { } foreach ($data as $key => $datum) { } foreach ($data as &$datum) { } Comparison of methods to iterate an ...

State monads are a kind of monad that carry a state that might change during each computation run in the monad. Implementations are usually of the form State s a which represents a computation that carries and potentially modifies a state of type s and produces a result of type a, but the term &quo...

AnnotationDetails@OneToOneSpecifies a one to one relationship with a corresponding object.@OneToManySpecifies a single object that maps to many objects.@ManyToOneSpecifies a collection of objects that map to a single object.@EntitySpecifies an object that maps to a database table.@TableSpecifies wh...

ser.read(size=1) ser.readline() ser.write() parameterdetailsportDevice name e.g. /dev/ttyUSB0 on GNU/Linux or COM3 on Windows.baudratebaudrate type: int default: 9600 standard values: 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 11520...

selection.enter() selection.exit() selection.merge()

Although combinators have limited practical use, they are a useful tool in education to understand how programming is fundamentally linked to logic, and how very simple building blocks can combine to create very complex behaviour. In the context of Julia, learning how to create and use combinators...

This section provides an overview of what teradata is, and why a developer might want to use it. It should also mention any large subjects within teradata, and link out to the related topics. Since the Documentation for teradata is new, you may need to create initial versions of those related to...

In the original design for iText, it was possible to create a high-level Document object, and then have different DocListener objects listening to that Document object. This was achieved by using different writers: a PdfWriter, an HTMLWriter, and an RtfWriter. When using a PdfWriter, a PdfDocument...

Predicate Format String Substitions C format string specifiers: %d, %s, %f, etc Object substitution: %@ Keypath substitution: %K Predicate Comparison Operators =, ==: Left-hand expression equals right-hand expression >=, =>: Left-hand expression is greater than or equal to righ...

Aggregate functions in SQL Server run calculations on sets of values, returning a single value. AVG([ALL|DISTINCT]expression) COUNT([ALL|DISTINCT]expression) MAX([ALL|DISTINCT]expression) MIN([ALL|DISTINCT]expression) SUM([ALL|DISTINCT]expression)