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  <title>Performing High-Level Queries (LTPDA Toolbox)</title>
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  <h1 class="title"><a name="f3-12899" id="f3-12899"></a>Performing High-Level Queries</h1>
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	<p>
  The High-Level Queries panel offers the user a simple interface to perform some predefined complex queries, setting SQL conditions upon multiples database tables at once.</p>
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  <img src="images/repo_gui_hlq.png" alt="Repo GUI Query">
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<p>The left part of the window presents the list of all supported high-level queries; in the figure there are 2 available HLQs, respectively looking for all AOs with a given name and initial time greater than a given t0, and AOs with a given name and included among two given times. After the selection of the desired query on the list, the button 'Set' will allow to adjust the proper settings.</p>
<p>All the settings associated to the selected HLQ are displayed  in the right part of the panel; in the example of the figure they are the name the queried AOs must match, and the upper and lower limit  times of its time-series data (meaning the object must contain tsdata  comprised among these given times).</p>
<p>Executing the query (click the 'Execute query' button) produces the same results as the 'Query' panel shown before.</p>
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      <td align="left">Querying the contents of a repository</td>

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      <td align="right">Retrieving objects and collections from a repository</td>

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  <p class="copy">&copy;LTP Team</p>
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author	Daniele Nicolodi <nicolodi@science.unitn.it>
date	Mon, 05 Dec 2011 16:20:06 +0100
parents	f0afece42f48
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