Tutorial by Examples: s

This script, from here and here, will return all Tables and Columns where a specified value exists. This is powerful in finding out where a certain value is in a database. It can be taxing, so it is suggested that it be executed in a backup / test enviroment first. DECLARE @SearchStr nvarchar(100) ...

SELECT ps.name AS PartitionScheme , fg.name AS [FileGroup] , prv.* , LAG(prv.Value) OVER (PARTITION BY ps.name ORDER BY ps.name, boundary_id) AS PreviousBoundaryValue FROM sys.partition_schemes ps INNER JOIN sys.destination_data...

According to this [TechNet Microsoft page][1], Partitioning data enables you to manage and access subsets of your data quickly and efficiently while maintaining the integrity of the entire data collection. When you call the following query the data is not physically moved; only the metadata ab...

Using the Authors table in the Library Database CREATE PROCEDURE GetName ( @input_id INT = NULL, --Input parameter, id of the person, NULL default @name VARCHAR(128) = NULL --Input parameter, name of the person, NULL default ) AS BEGIN SELECT Name + ' is from ' + Country...

By Assembly Name, add library Add-Type -AssemblyName "System.Math" or by file path: Add-Type -Path "D:\Libs\CustomMath.dll" To Use added type: [CustomMath.NameSpace]::Method(param1, $variableParam, [int]castMeAsIntParam)

Directives can be used to build reusable components. Here is an example of a "user box" component: userBox.js angular.module('simpleDirective', []).directive('userBox', function() { return { scope: { username: '=username', reputation: '=reputation' }, ...

Once Powershell remoting is enabled (Enable-PSRemoting) You can run commands on the remote computer like this: Invoke-Command -ComputerName "RemoteComputerName" -ScriptBlock { Write host "Remote Computer Name: $ENV:ComputerName" } The above method creates a temporary se...

UPDATE HelloWorlds SET HelloWorld = 'HELLO WORLD!!!' WHERE Id = 5 The above code updates the value of the field "HelloWorld" with "HELLO WORLD!!!" for the record where "Id = 5" in HelloWorlds table. Note: In an update statement, It is advised to use a "where&...

A simple form of updating is incrementing all the values in a given field of the table. In order to do so, we need to define the field and the increment value The following is an example that increments the Score field by 1 (in all rows): UPDATE Scores SET score = score + 1 This can be dang...

The obvious way to zero a register is to MOV in a 0—for example: B8 00 00 00 00 MOV eax, 0 Notice that this is a 5-byte instruction. If you are willing to clobber the flags (MOV never affects the flags), you can use the XOR instruction to bitwise-XOR the register with itself: 33 C0 ...

Background If the Carry (C) flag holds a value that you want to put into a register, the naïve way is to do something like this: mov al, 1 jc NotZero mov al, 0 NotZero: Use 'sbb' A more direct way, avoiding the jump, is to use "Subtract with Borrow": sbb al,a...

Background To find out if a register holds a zero, the naïve technique is to do this: cmp eax, 0 But if you look at the opcode for this, you get this: 83 F8 00 cmp eax, 0 Use test test eax, eax ; Equal to zero? Examine the opcode you get: 85 c0 test ea...

class Program { private static Lazy<ConnectionMultiplexer> _multiplexer = new Lazy<ConnectionMultiplexer>( () => ConnectionMultiplexer.Connect("localhost"), LazyThreadSafetyMode.ExecutionAndPublication); static void Main(string[] args...

Connect to Redis server and allow admin (risky) commands ConfigurationOptions options = new ConfigurationOptions() { EndPoints = { { "localhost", 6379}}, AllowAdmin = true, ConnectTimeout = 60*1000, }; Connectio...

This example will show you how to create a Windows Forms Application project in Visual Studio. Create Windows Forms Project Start Visual Studio. On the File menu, point to New, and then select Project. The New Project dialog box appears. In the Installed Templates pane, select "...

Open a text editor (like Notepad), and type the code below: using System; using System.ComponentModel; using System.Drawing; using System.Windows.Forms; namespace SampleApp { public class MainForm : Form { private Button btnHello; // The form's con...

In pointer arithmetic, the integer to be added or subtracted to pointer is interpreted not as change of address but as number of elements to move. #include <stdio.h> int main(void) { int array[] = {1, 2, 3, 4, 5}; int *ptr = &array[0]; int *ptr2 = ptr + sizeof(int) * 2; ...

Mesos is a cluster manager aiming for improved resource utilization by dynamically sharing resources among multiple frameworks. It was started at the University of California, Berkeley in 2009 and is in production use in many companies, including Twitter and Airbnb. It became an Apache top-level ...

docker network ls This command lists all networks that have been created on the local Docker host. It includes the default bridge bridge network, the host host network, and the null null network. All containers by default are attached to the default bridge bridge network.

docker network inspect app-backend This command will output details about the app-backend network. The of the output of this command should look similar to: [ { "Name": "foo", "Id": "a0349d78c8fd7c16f5940bdbaf1adec8d8399b8309b2e8a969bd4e...