Exact(1)
Other frameworks for building query optimizers are the ones described in [89], Cascades [54], and EROC (Extensible Reusable Optimization Components) [80] and [34, 107].
Similar(58)
Here, it has become abundantly clear that nearly all projects used the top five categories of DSLs, namely languages for the user interface, (shell) scripting, building, querying, and configuring.
Open image in new window Fig. 17 Efficiency on index building and query, a index building, b query on time interval with most delay, c RKNN query ((q = 560)), d query on zones with delay aggregation Open image in new window Fig. 18 Query efficiency w.r.t.
Separate Institutional Review Boards (IRBs) at Harvard's three largest affiliated health centers approved use of their data, and the Harvard Medical School IRB approved building a Query Aggregator Interface that can simultaneously send queries to each hospital and display aggregate counts of the number of matching patients.
Each task consisted in building a query (a set of inclusion and exclusion criteria) and then running the query against endpoints located at different partner hospitals.
(A) Building the query.
The idea is to reduce the trail and error that typically goes into building a query and make it a more efficient process with fewer clicks and false starts.
The first step in building a query is to specify at least one DB and the class of objects to search.
As for the Perl API and MartService interfaces, construction of the URL request is best handled by building the query using the MartView website and then using the URL button in the top pane of MartView.
Additionally formulated items for assessing design and comfort showed that participants on average were positive about the design of the interface (mean: 3.56, SD: 0.814), felt comfortable using the QB in English (mean: 4.38, SD: 0.719), and felt comfortable with the way of building a query (mean: 3.50, SD: 0.730).
Although OCL is a powerful language to perform queries over MOF models, it has two main problems: (i) it does not scale well when building complex queries [34] and (ii) changing complex queries may induce to developers in making mistakes.
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