Tutorial by Examples: al

For an executable file or command exec, running this will list all system calls: $ ptrace exec To display specific system calls use -e option: $ strace -e open exec To save the output to a file use the -o option: $ strace -o output exec To find the system calls an active program uses, us...

Detailed instructions on getting cognos set up or installed.

GridView is an ASP.NET server control and as such simply requires any version of .Net installed on your computer along with a .Net development environment, typically any version of Visual Studio. Assuming you have a .Net development environment, create any Web Forms Application or MVC Application p...

Detailed instructions on getting xml-parsing set up or installed.

Detailed instructions on getting raster set up or installed.

Handy method to initialise SolrJ client based on configuration properties; private void initSolrClient() { if (conf.kerberos().isEnabled()) { System.setProperty("java.security.auth.login.config", conf.kerberos().confPath()); HttpClientUtil.addConfigurer(new Krb5Http...

1 2 3 <public publicId="-//OASIS//DTD DocBook XML V4.5//EN" 4 uri="docbook45/docbookx.dtd"/> <system systemId="http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" 5 uri="docbook45/docbookx.dtd"/> <system ...

datepicker-overview-example.html: <md-input-container> <input mdInput [mdDatepicker]="picker" placeholder="Choose a date" [(ngModel)]="value"> <button mdSuffix [mdDatepickerToggle]="picker"></button> </md-input-container&...

Most of the times, validation attributes are use inside frameworks (such as ASP.NET). Those frameworks take care of executing the validation attributes. But what if you want to execute validation attributes manually? Just use the Validator class (no reflection needed). Validation Context Any valid...

This example requires MdDialogRef and MD_DIALOG_DATA. Please import them in the component module. import {MdDialog, MdDialogRef, MD_DIALOG_DATA} from '@angular/material'; input-overview-example.html: <md-input-container> <input mdInput [(ngModel)]="id" ...

In the most straightforward implementation, the Onboarding flow can simply be presented in a modal context, since semantically the User is on a single journey. [Apple Human Interface Guidelines – Modality][1]: Consider creating a modal context only when it’s critical to get someone’s attention, ...

Detailed instructions on getting symfony-forms set up or installed.

Detailed instructions on getting metal set up or installed.

Consider Kotlin's Null Type system and WeakReference<T>. So let's say we have to save some sort of reference and we wanted to avoid memory leaks, here is where WeakReference comes in. take for example this: class MyMemoryExpensiveClass { companion object { var reference: WeakR...

/***************************** login user @required : username and password via post method only @return user data if login successfull otherwise error message ****************************/ public function login(){ $username=$this->input->post('username'); $password=$this->input-...

ng-repeat is the built-in directive provided by AngularJS, mostly used for listing the array elements on UI dynamically as per the changes in our model. Official "ng-repeat" docs can be found at : https://docs.angularjs.org/api/ng/directive/ngRepeat Also the most common error faced whil...

There are times when the framework's Random() class may not be considered random enough, given that it is based on a psuedo-random number generator. The framework's Crypto classes do, however, provide something more robust in the form of RNGCryptoServiceProvider. The following code samples demonstr...

Let's say a user wants to select data from different tables. A table is specified by the user. function get_value(p_table_name varchar2, p_id number) return varchar2 is value varchar2(100); begin execute immediate 'select column_value from ' || p_table_name || ...

Example below inserts value into the table from the previous example: declare query_text varchar2(1000) := 'insert into my_table(id, column_value) values (:P_ID, :P_VAL)'; id number := 2; value varchar2(100) := 'Bonjour!'; begin execute immediate query_text using id, value; end; / ...

Let's update table from the first example: declare query_text varchar2(1000) := 'update my_table set column_value = :P_VAL where id = :P_ID'; id number := 2; value varchar2(100) := 'Bonjour le monde!'; begin execute immediate query_text using value, id; end; /