What is WML?
This query language or vernacular, is a dynamic information retrieval tool-type and utility, also referred to as (Wireless Markup Language) or WQL, Windows Management Instrumentation Query Language, sub-set ANSI (American National Standards Institute) SQL (Structured Query Language).
This is an enabler to enact and perform queries against the common information model repository. It gets event notifications, supporting WMI. Using SQL keywords for object or property names, expect for TRUE, FALSE or NULL. The use of the number of AND , OR keywords are restricted. Too many can result in error codes or faulty results. Very efficient for data queries.
Formally defined as a simplified, sub-set of SQL, server, data-base type queries language and objects. SELECT, FROM WHERE, USE, GO – bottom-up, first-fit search ,dynamics, with narrow scope, arguable better, more relevant search result and outcome. Can be used as a filter, with WHERE conditions, for server, database, schema or object(s), retrieving all events or specific events are possible with these types of query language and parameters. Here are two examples: AND which combines two Boolean expressions, and returns TRUE when both expressions are TRUE. (ii) Another e.g. OR Combines two conditions. When more than one logical operator is used in a statement, it is done after the AND queries.
Key Exam Points
- Used widely, based on XML, not like HTML, study Windows Management Instrumentation Query Language (WQL)
- For the exam study examples, practical applications/implications, for WML Query Language, that help you to gain a better understanding in this programming and development environment, retrieving information, getting notifications
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