WLM application environment
A z/OS Workload Manager attribute that
is associated with one or more stored
procedures. The WLM application
environment determines the address
space in which a given DB2 stored
procedure runs.
WLM enclave
A construct that can span multiple
dispatchable units (service request blocks
and tasks) in multiple address spaces,
allowing them to be reported on and
managed by WLM as part of a single
work request.
write to operator (WTO)
An optional user-coded service that
allows a message to be written to the
system console operator informing the
operator of errors and unusual system
conditions that might need to be corrected
(in z/OS).
WTO See write to operator.
WTOR
Write to operator (WTO) with reply.
XCF See cross-system coupling facility.
XES See cross-system extended services.
XML See Extensible Markup Language.
XML attribute
A name-value pair within a tagged XML
element that modifies certain features of
the element.
XML column
A column of a table that stores XML
values and is defined using the data type
XML. The XML values that are stored in
XML columns are internal representations
of well-formed XML documents.
XML data type
A data type for XML values.
XML element
A logical structure in an XML document
that is delimited by a start and an end
tag. Anything between the start tag and
the end tag is the content of the element.
XML index
An index on an XML column that
provides efficient access to nodes within
an XML document by providing index
keys that are based on XML patterns.
XML lock
A column-level lock for XML data. The
operation of XML locks is similar to the
operation of LOB locks.
XML node
The smallest unit of valid, complete
structure in a document. For example, a
node can represent an element, an
attribute, or a text string.
XML node ID index
An implicitly created index, on an XML
table that provides efficient access to XML
documents and navigation among
multiple XML data rows in the same
document.
XML pattern
A slash-separated list of element names,
an optional attribute name (at the end), or
kind tests, that describe a path within an
XML document in an XML column. The
pattern is a restrictive form of path
expressions, and it selects nodes that
match the specifications. XML patterns are
specified to create indexes on XML
columns in a database.
XML publishing function
A function that returns an XML value
from SQL values. An XML publishing
function is also known as an XML
constructor.
XML schema
In XML, a mechanism for describing and
constraining the content of XML files by
indicating which elements are allowed
and in which combinations. XML schemas
are an alternative to document type
definitions (DTDs) and can be used to
extend functionality in the areas of data
typing, inheritance, and presentation.
XML schema repository (XSR)
A repository that allows the DB2 database
system to store XML schemas. When
registered with the XSR, these objects
have a unique identifier and can be used
to validate XML instance documents.
XML serialization function
A function that returns a serialized XML
string from an XML value.
XML table
An auxiliary table that is implicitly
created when an XML column is added to
Glossary 557
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
To Next Page
Loading...
Need help?
General