Tutorial by Examples: re

Instances have a lot of metadata that gets returned from a call to describe-instances, but often times you just want to see the basics. You can use a JMESPath query combined with table output to show concise instance information in an easily readable way. aws ec2 describe-instances --output table -...

First of all, Merged Cells are there only to improve the look of your sheets. So it is literally the last thing that you should do, once your sheet and workbook are totally functional! Where is the data in a Merged Range? When you merge a Range, you'll only display one block. The data will be ...

class MyResourceAdapter implements javax.resource.spi.ResourceAdapter { public void start(BootstrapContext ctx){..} public void stop(){..} public void endpointActivation (MessageEndpoingFactory mf, ActivationSpec a){..} public void endpointDeactivation (MessageEndpoingFact...

import Foundation class CookiesSingleton { static let instance : CookiesSingleton = CookiesSingleton() static var enableDebug = true func loadCookies() { if let cookiesDetails = NSUserDefaults.standardUserDefaults().objectForKey("customeWebsite") { for (keys,_) i...

If you're creating an image, decoding an image, or resizing an image to fit the large notification image area, you can get the correct pixel dimensions like so: Resources resources = context.getResources(); int width = resources.getDimensionPixelSize(android.R.dimen.notification_large_icon_width)...

When called without arguments, Node.js starts a REPL (Read-Eval-Print-Loop) also known as the “Node shell”. At a command prompt type node. $ node > At the Node shell prompt > type "Hello World!" $ node > "Hello World!" 'Hello World!'

Git config allows you to customize how git works. It is commonly used to set your name and email or favorite editor or how merges should be done. To see the current configuration. $ git config --list ... core.editor=vim credential.helper=osxkeychain ... To edit the config: $ git config &lt...

If you find managing QThreads and low-level primitives like mutexes or semaphores too complex, Qt Concurrent namespace is what you are looking for. It includes classes which allow more high-level thread management. Let's look at Concurrent Run. QtConcurrent::run() allows to run function in a new th...

If you want to do different things based on the kind of error, use multiple rescue clauses, each with a different error type as an argument. def divide(x, y) begin return x/y rescue ZeroDivisionError puts "Don't divide by zero!" return nil rescue TypeError put...

In a rescue clause, you can use retry to run the begin clause again, presumably after changing the circumstance that caused the error. def divide(x, y) begin puts "About to divide..." return x/y rescue ZeroDivisionError puts "Don't divide by zero!" y = ...

select sysdate from dual

You can read content of file using OPENROWSET(BULK) function and store content in some table: INSERT INTO myTable(content) SELECT BulkColumn FROM OPENROWSET(BULK N'C:\Text1.txt', SINGLE_BLOB) AS Document; SINGLE_BLOB option will read entire content from a file as single cell. ...

Yu can define format of the file that will be imported using FORMATFILE option: INSERT INTO mytable SELECT a.* FROM OPENROWSET(BULK 'c:\test\values.txt', FORMATFILE = 'c:\test\values.fmt') AS a; The format file, format_file.fmt, describes the columns in values.txt: 9.0 2 1 SQ...

You can use OPENROWSET to read content of file and pass it to some other function that will parse results. The following example shows hot to read entire content of JSON file using OPENROWSET(BULK) and then provide BulkColumn to OPENJSON function that will parse JSON and return columns: SELECT boo...

follow these step to creating Custom Framework in Swift-IOS: Create a new project. In Xcode Choose iOS/Framework & Library/Cocoa Touch Framework to create a new framework click next and set the productName click next and choose directory to create Project there add code and resources to c...

As with everything in Windows Azure, You have to have a Windows Azure account and an Azure Subscription. After you have both, go to https://portal.azure.com. From here, you can add new resources to your Azure subscription. Click New on the left menu.A new blade will be added to the right of you...

READ data-file

This is a contrived sample. It sorts records based on an ALPHABET that has upper and lower case characters together, with A and a swapped compared to the other letters. This was done on purpose to demonstrate the possibilities. The SORT algorithm reader retrieves records using RELEASE in the INPU...

This is a seedwork sample. The SORT OUTPUT PROCEDURE could manipulate the sorted records before they are returned to the write portion of the internal COBOL sort algorithm. In this case, no transformation is done, work-rec is directly moved to out-rec. GCobol >>SOURCE FORMAT IS FIXED ...

You may want to read a DataFrame from a CSV (Comma separated values) file or maybe even from a TSV or WSV (tabs and whitespace separated files). If your file has the right extension, you can use the readtable function to read in the dataframe: readtable("dataset.CSV") But what if your ...