Severity: Warning
Message: fopen(/var/cpanel/php/sessions/ea-php70/ci_sessionhoi8nskmp4praamqdujcsm1u1dqfv942): failed to open stream: Disk quota exceeded
Filename: drivers/Session_files_driver.php
Line Number: 172
Backtrace:
File: /home/realtrainings/public_html/application/third_party/MX/Loader.php
Line: 173
Function: _ci_load_library
File: /home/realtrainings/public_html/application/third_party/MX/Loader.php
Line: 65
Function: initialize
File: /home/realtrainings/public_html/application/modules/trainings/controllers/Trainings.php
Line: 10
Function: __construct
File: /home/realtrainings/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/realtrainings/public_html/system/core/Exceptions.php:271)
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /home/realtrainings/public_html/application/third_party/MX/Loader.php
Line: 173
Function: _ci_load_library
File: /home/realtrainings/public_html/application/third_party/MX/Loader.php
Line: 65
Function: initialize
File: /home/realtrainings/public_html/application/modules/trainings/controllers/Trainings.php
Line: 10
Function: __construct
File: /home/realtrainings/public_html/index.php
Line: 315
Function: require_once
A database is an organized collection of data.A relational database, more restrictively, is a collection of schemas, tables, queries, reports, views, and other elements. Database designers typically organize the data to model aspects of reality in a way that supports processes requiring information, such as modelling the availability of rooms in hotels in a way that supports finding a hotel with vacancies.
A database-management system is a computer-software application that interacts with end-users, other applications, and the database itself to capture and analyze data. A general-purpose DBMS allows the definition, creation, querying, update, and administration of databases.
A database is not generally portable across different DBMSs, but different DBMSs can interoperate by using standards such as SQL and ODBC or JDBC to allow a single application to work with more than one DBMS. Computer scientists may classify database-management systems according to the database models that they support; the most popular database systems since the 1980s have all supported the relational model - generally associated with the SQL language.Sometimes a DBMS is loosely referred to as a "database".
