Tutorial by Examples: pt

To illustrate this, here is a function that has 3 different "wrong" behaviors the parameter is completely stupid: we use a user-defined expression the parameter has a typo: we use Oracle standard NO_DATA_FOUND error another, but not handled case Feel free to adapt it to your standa...

Each standard Oracle error is associated with an error number. It's important to anticipate what could go wrong in your code. Here for a connection to another database, it can be: -28000 account is locked -28001 password expired -28002 grace period -1017 wrong user / password Here is a way ...

Swift: var centralManager:CBCentralManager! centralManager = CBCentralManager(delegate: self, queue: nil, options: [CBCentralManagerOptionRestoreIdentifierKey : "com.companyname.appname.central"]) Objective C: @property (nonatomic, strong) CBCentralManager *centralManager; self....

“Adapter” as the name suggests is the object which lets two mutually incompatible interfaces communicate with each other. For example: if you buy a Iphone 8 (or any other Apple product) you need alot of adapters. Because the default interface does not support audio jac or USB. With these a...

The size of any object or member subobject is required to be at least 1 even if the type is an empty class type (that is, a class or struct that has no non-static data members), in order to be able to guarantee that the addresses of distinct objects of the same type are always distinct. However, ba...

it often happened some rows with format issue, data type issue rejected by copy command while try load it by copy command. the query return succeed but some of data rejected. To do troubleshooting save Rejected Data and Exceptions COPY large_tbl FROM :file1 ON site01, :file2 O...

#pragma strict import UnityEngine.Advertisements; #if !UNITY_ADS // If the Ads service is not enabled public var gameId : String; // Set this value from the inspector public var enableTestMode : boolean = true; // Enable this during development #endif function InitializeAds () // Example o...

Stack corruptions are annoying bugs to look at. As the stack is corrupted, the debugger often can't give you a good stack trace of where you are and how you got there. This is where safe-stack comes into play. Instead of using a single stack for your threads, it will use two: A safe stack and a dan...

Sherlock captures all your crashes and reports them as a notification. When you tap on the notification, it opens up an activity with all the crash details along with Device and Application info How to integrate Sherlock with your application? You just need to add Sherlock as a gradle dependency i...

Create new script section. I call that sa(Script Anonymuos) that meens for me generate JavaScript section with anonymuous function call inside. <script type="text/javascript"> $(function () { $END$ }); </script> If in your project still use old jQuery you c...

var _activitiesGridName = ''; function SetupActivityGridOnload(gridName) { var btnsToHide = [ 'AddserviceappointmentButton', 'AddcampaignresponseButton', 'AddappointmentButton' ]; _activitiesGridName = gridName; setTimeout(function () { //...

In general, there are two types of Bash scripts: System tools which operate from the current working directory Project tools which modify files relative to their own place in the files system For the second type of scripts, it is useful to change to the directory where the script is stored. T...

inputDir=${1} outputDir=${2} hadoop fs -mkdir -p ${outputDir} hadoop fs -cp ${inputDir}/* ${outputDir}/

# The name of the executed script is at the beginning of the argv list. print('usage:', sys.argv[0], '<filename> <start> <end>') # You can use it to generate the path prefix of the executed program # (as opposed to the current module) to access files relative to that, # which...

You must have 3.2 to be able to upgrade to 3.4. This example assumes you are using apt. sudo service mongod stop sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6 echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xeni...

It's relatively easy to parse the command line by hand if you aren't looking for anything too complex: # Naive error checking abort('Usage: ' + $0 + ' site id ...') unless ARGV.length >= 2 # First item (site) is mandatory site = ARGV.shift ARGV.each do | id | # Do something interestin...

To use typescript with webpack you need typescript and ts-loader installed npm --save-dev install typescript ts-loader Now you can configure webpack to use typescript files // webpack.config.js module.exports = { .. resolve: { // .js is required for react imports. // .tsx is ...

Different types of variables may be declared with special options. DATA: lv_string TYPE string, " standard declaration lv_char TYPE c, " declares a character variable of length 1 lv_char5(5) TYPE c, " declares a character variable of length 5 l_pa...

Sometimes your description can get rather long. For instance irb -h lists on argument that reads: --context-mode n Set n[0-3] to method to create Binding Object, when new workspace was created It's not immediately clear how to support this. Most solutions require adjustin...

When creating a std::unique_lock, there are three different locking strategies to choose from: std::try_to_lock, std::defer_lock and std::adopt_lock std::try_to_lock allows for trying a lock without blocking: { std::atomic_int temp {0}; std::mutex _mutex; std::thread t( [&...