Glossary
M
mapped conversation
In APPC, a conversation between two
transaction programs (TPs) using the APPC mapped conversation API. In typical
situations, end-user TPs use mapped conversation and service TPs use basic
conversations. However, either type of program can use either type of
conversation. Contrast with basic conversation.
masking character
A character used to represent optional
characters at the front, middle, and end of a search term. Masking characters
are normally used for finding variations of a term in a precise index.
MBCS
Multi-byte character set.
migration
(1) The process of moving data from one
computer system to another without converting the data.
(2) Installation of a new version or release
of a program to replace an earlier version or release.
mixed-character string
A string containing a mixture of
single-byte and multi-byte characters.
mixed-data string
Synonym for mixed-character string.
mobile client
The node, usually a lap top computer,
where the mobile enabler and replication source and target tables used in a
mobile environment are located. The mobile replication mode is invoked from
the mobile client.
mobile replication enabler
A replication program that starts the
mobile replication mode at the mobile client.
mobile replication mode
A mode of replication in which the Capture
and Apply programs operate as needed rather than autonomously and
continuously. This mode is invoked from the mobile client and allows data to
be replicated when the mobile client is available for a connection to the
source or target server.
modelled statistics
Statistics for a database object that may
or may not be referenced in an SQL statement, yet currently exist in an
explain model. The object may or may not currently exist in the database.
mode name
In APPC, the name used by the initiator of
a session to designate the characteristics desired for the session, such as
message length limits, sync point, class of service within the transport
network, and session routing and delay characteristics.
monitoring session
The act of monitoring a database manager
or of playing back information from a previously monitored database manager.
The DB2 Performance Monitor is used for creating a monitoring session and for
selecting which database objects to monitor.
monitor switch
Database manager parameters manipulated by
the user to control the type of information and the quantity of information
returned in performance snapshots.
multi-byte character set (MBCS)
A set of characters in which each
character is represented by two or more bytes. Those using only two bytes are
more commonly known as double-byte character sets.
multitasking
A mode of operation that provides for
concurrent performance, or interleaved execution of two or more tasks. (I) (A)
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