Selection is a process for extracting a subset of records that match certain criteria. You can select of subset of records, for instance, of all your notes on a particular topic, all the articles published in a particular journal, court decisions dealing with a particular issue, etc. Any of the above Searches can be done as a Select - which means you actually create a subset of your database containing only those records that match the criteria. More information on selecting subsets of records.
WMI Query Language statement that is used to retrieve information. SQL supports queries across multiple tables, but WQL supports only single class queries. Also see ASSOCIATORS OF, REFERENCES OF, WITHIN, GROUP, HAVING, ISA.
SQL statement specifying criteria for querying data from one database table or from more than one related database tables.