MP) 3.0

Data Control Language (DCL)

The set of data control statements within the SQL/MP language.

Data Manipulation Language (DML)

The set of data-manipulation statements within the SQL/MP language. These statements include INSERT,

DELETE, and UPDATE, which cause database modifications that Remote Duplicate Database Facility (RDF)

can replicate.

DCL

See Data Control Language (DCL).

DML

See Data Manipulation Language (DML).

driver

A class in JDBC that implements a connection to a particular database management system such as SQL/MP.

The NonStop Server for Java has these driver implementations: JDBC Driver for SQL/MP (JDBC/MP) and

JDBC Driver for SQL/MX (JDBC/MX).

DriverManager

The JDBC class that manages drivers.

exception

An event during program execution that prevents the program from continuing normally; generally, an error.

Java methods raise exceptions using the throw keyword and handle exceptions using try, catch, and finally

blocks.

Expand

The HP NonStop operating system network that extends the concept of fault tolerance to networks of

geographically distributed NonStop systems. If the network is properly designed, communication paths are

constantly available even if there is a single line failure or component failure.

expandability

See scalability.

fault tolerance

The ability of a computer system to continue processing during and after a single fault (the failure of a system

component) without the loss of data or function.

garbage collection

The process that reclaims dynamically allocated storage during program execution. The term usually refers to

automatic periodic storage reclamation by the garbage collector (part of the run-time system), as opposed to

explicit code to free specific blocks of memory.

get() method

A method used to read a data item. For example, the SQLMPConnection.getAutoCommit() method returns the

transaction mode of the JDBC driver's connection to an SQL/MP or SQL/MX database. Compare to set()

method.

Guardian