1, The full form of PDO is PHP Data Objects. It’s used on Computing ,Databases in Worldwide

PHP Data Objects, also known as PDO, is an interface for accessing databases in PHP without tying code to a specific database. Rather than directly calling mysql_, mysqli_, and pg_ functions, developers can use the PDO interface, simplifying the porting of applications to other databases.

The PHP Data Objects extension is currently included by default with installations of PHP 5.1. It is available for users of PHP 5.0 through PECL, but does not ship with the base package.

PHP Data Objects has a number of significant differences to the MySQL interface used by most PHP applications on PHP 4.x and below:

• Object-orientation. While the mysql extension used a number of function calls that operated on a connection handle and result handles, the PDO extension has an object-oriented interface.
• Database independence. The PDO extension, unlike the mysql extension, is designed to be compatible with multiple databases with little effort on the part of the user, provided standard SQL is used in all queries.
• Connections to the database are made with a Data Source Name, or DSN. A DSN is a string that contains all of the information necessary to connect to a database, such as ‘mysql:dbname=test_db’.

Example:

$dsn = 'mysql:dbname=database_name;host=localhost';
$dbuser = 'database_user';
$dbuserpw = 'database_user_password';

try
{
    $connection = new PDO($dsn, $dbuser, $dbuserpw);
}
catch (PDOException $e)
{
    echo 'There was a problem connecting to the database: ' . $e->getMessage();
}

$query = $connection->query("SELECT * FROM table"); // querying the database

2, The full form of PDO is Petroleum Development Oman. It’s used on Business ,Companies & Corporations in Oman

Petroleum Development Oman (PDO) is the leading exploration and production company in the Sultanate of Oman. We deliver the majority of the country’s crude oil production and natural gas supply, but above all we focus on delivering excellence, growth and sustainable value creation within and well beyond our industry.

The Company is owned by the Government of Oman (with a 60% interest), Royal Dutch Shell (34%), Total (4%) and Partex (2%). The first economic oil find was made in 1962, and the first oil consignment was exported in 1967.

PDO operates in a concession area of about 90,000 km2 (one third of Oman’s geographical area), has around 209 producing oil fields, 55 producing gas fields, more than 8,000 active wells, a diverse workforce of more than 8,500 employees, comprised of 70 different nationalities, and more than 70,000 contractors.

The primary objective of PDO is to engage efficiently, responsibly and safely in the exploration, production, development, storage and transportation of hydrocarbons in the Sultanate.​​​​​​​​​​​​​​​​​​​​

Country of Incorporation: Oman

Ownership Type: Government

Established In: 1937

Primary Sector: Oil and Gas

Number of Employees: 8596

3, The full form of PDO is Protected Designation of Origin. It’s used on Governmental ,Rules & Regulations in European Union

Protected Designation of Origin (PDO) is a European Union product certification system based on the French AOC system. Like the AOC system, it also holds to the French idea of “terroir”, that where something was made or grown affects the end product. Manufacturers have to first get approval by a national certification commission, then go to the EU level and apply for PDO. The PDO certification is regulated both by national commissions and by associations for that product.

PGI is a very close designation, but it used for products that aren’t quite as tied to the local region.

PDO status is indicated by a red logo (changed from blue in May 2010.)

4, The full form of PDO is Pacific Decadal Oscillation. It’s used on Academic & Science ,Ocean Science in Worldwide

The Pacific Decadal Oscillation (PDO) is a robust, recurring pattern of ocean-atmosphere climate variability centered over the mid-latitude Pacific basin. The PDO is detected as warm or cool surface waters in the Pacific Ocean, north of 20°N. Over the past century, the amplitude of this climate pattern has varied irregularly at interannual-to-interdecadal time scales (meaning time periods of a few years to as much as time periods of multiple decades). There is evidence of reversals in the prevailing polarity (meaning changes in cool surface waters versus warm surface waters within the region) of the oscillation occurring around 1925, 1947, and 1977; the last two reversals corresponded with dramatic shifts in salmon production regimes in the North Pacific Ocean. This climate pattern also affects coastal sea and continental surface air temperatures from Alaska to California.

5, The full form of PDO is 1,3-Propanediol. It’s used on Academic & Science ,Chemistry in Worldwide

1,3-Propanediol is the organic compound with the formula CH₂. This three-carbon diol is a colorless viscous liquid that is miscible with water.

6, The full form of PDO is Pendopo Airport. It’s used on Transport & Travel ,Airport Codes in Indonesia

Pendopo Airport (IATA code: PDO) is an airport in Pendopo, Indonesia. Pendopo Airport is located approximately 26,3 miles (42,3 km) west of Prabumulih and about 41,6 miles (67,0 km) northeast of Lahat.

7, The full form of PDO is Philips and Dupont Optical. It’s used on Business ,Companies & Corporations in Worldwide

Philips and Dupont Optical (PDO) is an optical disc manufacturing company.

Philips And DuPont Optical. Operating under this name from October 1985 until 1996. Use this page only where the exact plant cannot be derived. For releases stating:
“Made in U.K. by PDO” please use PDO, UK.
“Made in Germany/West Germany by PDO” please use PDO, Germany
“Made in France by PDO” please use PDO, France.
“Made in USA by PDO” please use PDO, USA.
For (French) vinyl pressings with PDO in the runouts, please use PDO, France.

PolyGram transferred control of their West German pressing plant PRS, located in Hannover, to a joint venture between Philips and DuPont Optical that was formed in October 1985 to manufacture compact discs (effective January 1986). The French PRS plant, located in Louviers, followed in September 1986.

This company, Philips And DuPont Optical or “PDO,” was used to press CDs and vinyl for a number of companies / labels.
By December 1986, PDO operated additional CD pressing plants in the U.S. (Kings Mountain, North Carolina) and in the U.K. (Blackburn, Lancashire).

PDO CDs pressed between 1988 and 1993 by the Blackburn plant have been widely reported as being affected by “disc bronzing” or “disc rot.”

Joint venture announced 8 October 1985, intended to help make sure growth of the CD format was not limited by inadequate pressing capacity