What is PEAR DB PHP?

What is PEAR DB PHP?

PEAR (PHP Extension and Application Repository) is a framework and distribution system for reusable PHP classes, libraries and modules. One of its most popular packages is PEAR DB, the database abstraction layer created by this project.

Which method is used in a PEAR DB to execute query?

PEAR DB provides several methods for querying databases. The most direct method is query(). It takes a SQL query string as an argument.

What is data source name in PEAR DB?

To connect to a database through PEAR::DB, you have to create a valid DSN – data source name. This DSN consists in the following parts: phptype : Database backend used in PHP (i.e. mysql , odbc etc.) dbsyntax : Database used with regards to SQL syntax etc.

Which in PEAR DB are an alternative to database specific ID assignment?

PEAR DB sequences are an alternative to database-specific ID assignment (for instance, MySQL’s AUTO_INCREMENT). A sequence is really a table in the database that keeps track of the last-assigned ID.

Which are the databases supported by PHP?

PHP supports many database management systems including MySQL, MariaDB, Db2, MongoDB, Oracle, PostgreSQL, and SQLite.

Which are following object methods supported by PEAR DB?

The library is object-oriented, with a mixture of class methods ( DB::connect( ) , DB::iserror( ) ) and object methods ( $db->query( ) , $q->fetchInto( ) ).

Which are the following object methods supported by PEAR DB?

Which method runs a query and return all data as an array in PEAR DB?

Manual :: Runs a query and returns all the data as an array.

What is DSN in PHP?

dsn. The Data Source Name, or DSN, contains the information required to connect to the database. In general, a DSN consists of the PDO driver name, followed by a colon, followed by the PDO driver-specific connection syntax. Further information is available from the PDO driver-specific documentation.

How do I open a DSN file?

DSN files are typically opened using OrCAD PCB Designer because they are created by the program. However, you can also import DSN files in Altium Designer as schematic files using the Import Wizard in the program.

How can we connect to a mysql database from a PHP script?

1. Create Database.
2. Create a Folder in htdocs.
3. Create Database Connection File In PHP.
4. Create new php file to check your database connection.
5. Run it.

Which are the following class methods supported by PEAR DB?