Tutorial by Examples: nd

Navigate to phpMyAdmin by URL http://your_ip/phpmyadmin or http://localhost/phpmyadmin Login using username root and root password. Click on Databases tab. Enter database name, select collation (you may leave it to default) and click create. Click on Privileges tab and select "Add user a...

$ egrep '^(0|1)+ [a-zA-Z]+$' searchfile.txt 011 AaBBS

From the tool-bar open the Java Perspective. Create a new Java project Right-click into the Package Explorer, and from the menu select New -> Java Project In the upcoming dialog enter a project name, then click Finish. Now you have the new project in your workspace. Create a new Java ...

Flexbox or flexible box is a layout method for arranging content on a page in a predictable manner. Flexbox provides an improvement over traditional block model positioning using floats or even table like positioning for content on the page. At its core, Flexbox can be broken down into a parent ele...

Open Function.cs and replace the class code with the following: public class Function { /// <summary> /// A simple function that takes a birth date and returns Age in years /// </summary> /// <param name="input"></param> /// <returns>Age is years&...

A simple sports2000 example: FIND FIRST Customer NO-LOCK WHERE CustNum = 1 NO-ERROR. IF AVAILABLE Customer THEN DO: DISPLAY Customer.NAME. END. ELSE DO: MESSAGE "No record available". END. FIRST - find the first record that matches the query NO-LOCK - don't lock the r...

Overall you have two ways to monitor processes at linux host Static monitoring Most widely used command is ps (i.e., process status) command is used to provide information about the currently running processes, including their process identification numbers (PIDs). Here few useful options to gath...

To get general statistics about main components of Linux family of stat commands are extremely useful CPU To get processors related statistics you can use mpstat command but with some options it will provide better visibility: $ mpstat 2 10 Memory We all know command free to show amount of (r...

One can describe a line in arbitrary dimensions as X = A + t*D where A and D are both vectors of suitably many dimensions. So in 2d this would be x = Ax + t*Dx y = Ay + t*Dy Now as t assumes any real value, this equation will produce all points along the line. The representation is not uniq...

The latest find is always the one the availability check will work against - a unsuccesful find will make AVAILABLE return false: DEFINE TEMP-TABLE tt NO-UNDO FIELD nr AS INTEGER. CREATE tt. tt.nr = 1. CREATE tt. tt.nr = 2. CREATE tt. tt.nr = 3. DISPLAY AVAILABL tt. // yes (tt w...

var alertResult = await DisplayAlert("Alert Title", Alert Message, null, "OK"); if(!alertResult) { //do your stuff. } Here we will get Ok click action.

Sometimes it is required to implement Enum on your own. E.g. there is no clear way to extend other enums. Custom implementation allows this: class Enum { constructor(protected value: string) {} public toString() { return String(this.value); } public is(value: Enum | string) { ...

enum SourceEnum { value1 = <any>'value1', value2 = <any>'value2' } enum AdditionToSourceEnum { value3 = <any>'value3', value4 = <any>'value4' } // we need this type for TypeScript to resolve the types correctly type TestEnumType = SourceEnum | AdditionToS...

just use your cmd: You can use the ng generate (or just ng g) command to generate Angular components: Component: ng g component my-new-component Directive: ng g directive my-new-directive Pipe: ng g pipe my-new-pipe Service: ng g service my-new-service Class: ng g class my-new-classt...

Whenever you FIND a record you can aquire a lock of it. NO-LOCK: Used for read only operations. If you do a FIND <record> NO-LOCK you cannot in any way modify the record. FIND FIRST Customer NO-LOCK NO-ERROR. EXCLUSIVE-LOCK: Used for updates and deletes. If you do this you will "own&...

Temp-tables can (and should) be created with indices if you plan to run queries against them. This table has one index (index1) containing of one field (field1). This index is primary and unique (meaning not two records can have the same contents of field1). DEFINE TEMP-TABLE ttTempTable NO-UNDO ...

You can define multiple indices for each temp-table. If you need them - define them. Basically an index matching your query and/or sort order will help performance! DEFINE TEMP-TABLE ttWithIndex NO-UNDO FIELD field1 AS INTEGER FIELD field2 AS CHARACTER FIELD field3 AS LOGICAL IN...

To use the Table API, add flink-table as a maven dependency (in addition to flink-clients and flink-core): <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-table_2.11</artifactId> <version>1.1.4</version> </dependency&gt...

The subtypes' stream-oriented attributes are called to write objects to a file, bare and using binary default representations. with Ada.Streams.Stream_IO; procedure Main is type Fruit is (Banana, Orange, Pear); type Color_Value is range 0 .. 255; type Color is record R, G, B :...

Java technology is both a programming language and a platform. The Java programming language is a high-level object-oriented language that has a particular syntax and style. A Java platform is a particular environment in which Java programming language applications run. There are several Java platf...