Page Comparison

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• WHAT you are selecting

• WHICH tables you are selecting from, and

• CONDITIONS on what you are selecting.

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This example query looks for objects within the Orion Nebula. Once you have logged in to Lasair, you can create a query from the /myquery page, shown at left. Write a name and description, then keep the query inactive and not public (first 2 green boxes).

The “select attributes” box has autocomplete for the possible attributes, which are also listed in detail at the /schema page. In this case we chose the object identifier objectId, and the number of good candidates, ncandgp.

Select only the objects table – meaning no joins. The “where” box has the square degree of the sky which is the Orion Nebula.

Then click “Create query”.