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*  Create Login Page With Database * -> First Download Wamp Server or Xamp Server and Setup Your Drive And Check Avaiblity Of Xamp or Wamp. -> Create Database in mysql database. and Create New Table and Insert New Record Like User name, Password, Full name, And extra Details.... -> and next Step is Create new page login.php or index.php -> Write Code on Creating File. ->Establish Connection of Your Databse. ->create new file like config or connection... like(dbuser,dbpassword, and connection details..) ->The Following Code write in your index or Login Page. <?php     //old path     //include('config/connection.php');     //new path     include('../../db/connection.php');     if(isset($login))     {         $str="select*from admin where status='active' and user_name='$username' and password='$password';";         $data=mysqli_query($conn,$str);     ...

  * Important Note To Download Templates * 1. Conceptual Simplicity :  As the information is represented in form of tree structure, it is easy to view, understand, and retrieve the data. This helps the database designer to obtain conceptual clarity of relationship.  2.. Database security :  Security is provided by DBMS. Thus Programming effort is decreased as compared to file system in which programmer has to write the programs for implementing security.  3. Data independence :  If changes are made in design of database, DBMS takes care of cascading it throughout the system. There is no need to make change in system. * Limitation of Download Templates * 1. Complexity :  To implement the database using hierarchical model. programmer needs to have detailed knowledge of how the data is’ stored has to traverse entire tree for the same.  2. Data Redundancy :  To implement many to many ‘relationships amongst data repeatition of data is required. T...

               *  ADVANTAGE OF PHP HIERARCHICAL DATATABLE MODELS * 1. Conceptual Simplicity :  As the information is represented in form of tree structure, it is easy to view, understand, and retrieve the data. This helps the database designer to obtain conceptual clarity of relationship.  2.. Database security :  Security is provided by DBMS. Thus Programming effort is decreased  compared to file system in which programmer has to write the programs for implementing security.  3. Data independence :  If changes are made in design of database, DBMS takes care of cascading it throughout the system. There is no need to make change in system.  * DISADVANTAGE OF PHP HIERARCHICAL DATABASE MODELS  * 1. Complexity :  To implement the database using hierarchical model. programmer needs to have detailed knowledge of how the data is’ stored has to traverse entire tree for the same.  2. Data Redundan...

  1.Insert Query $sql = "INSERT INTO persons (first_name, last_name, email) VALUES              ('Peter', 'Parker', 'peterparker@mail.com')" ; if ( mysqli_query ( $link , $sql ) ) { echo "Records inserted successfully." ; } else { echo "ERROR: Could not able to execute $sql . " . mysqli_error ( $link ) ; } 3.Update Query $sql = "UPDATE persons SET email='peterparker_new@mail.com' WHERE id=1" ; if ( mysqli_query ( $link , $sql ) ) { echo "Records were updated successfully." ; } else { echo "ERROR: Could not able to execute $sql . " . mysqli_error ( $link ) ; } 3.Delete Query $sql = "DELETE FROM persons WHERE first_name='John'" ; if ( mysqli_query ( $link , $sql ) ) { echo "Records were deleted successfully." ; } else { echo "ERROR: Could not able to execute $sql . " . mysqli_error ( $link ) ; } * ...

-> there are following feature are required to learn java. * Basic introduction of mysql database. DBMS     (DATABASE  MANAGEMENT  SYSTEM)   : The conventional file processing system had many drawbacks. Hence, an alternate system,   i.e.   database system, which was based on database approach, was desired because it would eliminate all the drawbacks of conventional file processing system. To define the database system   following terms are required:          FILE          DATABASE          DATABASE MANAGEMENT SYSTEM     File is a two dimensional table summarizing the multiple instances of asset of field of an entity. Database is a collection of interrelated data files, while database management system is a computer program that allows storing, organizing and accessing a collection...

  * Traditional File System   : The information system can be either a conventional file processing or a database system. file is a collection of related information with name assigned to it. File processing is the first attempt to computerize the manual system. file can be organized using folders. File system considered as a very primitive kind of   database management system as it allows us to store the data. Data in most organization is stored in the form of files and folders. For example list of student can be stored in a text file or in a spreadsheet. In convention file processing system, each and very subsystem of the information system will have its own set of files. As a result, there will be duplication of data between various     subsystem   of the     information system. For example , a file folder in   office of school   clert might contain student data organized as one file folder for each standard , which is turn will h...

  * There are Three Schema Architecture of Download PUBG.   DBMS is a collection of interrelated files and a set of programs that allow several users to access and modify these files. A major purpose of a database system is to provide users with an abstract view of the data. That is tha system hides certain details of how tha   data is stored and maintained. However , in order for tha system to be usable, data must be retrieved efficiently.        Tha concern for efficiency leads to the design of complex data structure for tha representation of data in tha database. However since database systems are often used by non computer   professionals,   this complexity must be hidden from   database system   users. This is done by defining levels of abstraction   at which tha database may be viewed. There is logical or external view, conceptual view and internal view or physical view. The three levels of the architecture are three di...

    Hii Guys Today We are Talking about of php variable Declaration and sinple print message and calculate simple sum of two numbers. php is very powerfull language to compare other language. so. lests start and see full tutorial. 1.0 Start PHP           * PHP code always start <?php word throw start and close php code ?> keyword. the following                          syntax throw start php working.                         ------------------------------------------------------------------------------                        |              <?php // start php                                   ...

  PHP is a best Language of Website Development. There are many country and colleges are accepted php language. php in many library and function are used. That main language of website development php starting simple syntax and example. so start in few days to learn php.   to generate any system and dynamic working are possible throw a php.  there are following keyword of php.