ALTER TABLE dbo.doc_exa 

ADD column_b VARCHAR(20) NULL, 

    column_c INT NULL ;

ALTER TABLE table_name

ADD column_name INT -- datatype

​

-- With default vaue and not nullable

ALTER TABLE table_name

ADD column_name BIT DEFAULT 0 NOT NULL -- 

ALTER TABLE internal_transfer

  ADD client_account_id int not null

  AFTER id;

ALTER TABLE myTable ADD newColumn bit NOT NULL default(0)

-- For More Tutorial, visit NAYCode.com

Alter Table [Table Name] Add [Column Name]  [datatype]

ALTER TABLE agents

ADD [associated department] varchar(100)

ALTER TABLE sales.quotations 

    ADD 

        amount DECIMAL (10, 2) NOT NULL,

        customer_name VARCHAR (50) NOT NULL;

Code language: SQL (Structured Query Language) (sql)

namespace App\Http\Middleware;

​

use Closure;

use Illuminate\Http\Request;

​

class BlockIpMiddleware

{

    protected $blockedIps = [

        '192.168.1.1',

        '203.0.113.5',

        // Add more IPs as needed

    ];

​

    public function handle(Request $request, Closure $next)

    {

        if (in_array($request->ip(), $this->blockedIps)) {

            abort(403);

        }

​

        return $next($request);

    }

}

ALTER TABLE Customers

ADD Email varchar(255);