SkyServer Tools - Getting Started
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     - Query Builder
     - SQL
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Query Builder

The Query Builder is one of several SkyServer tools for searching the database of the Sloan Digital Sky Survey. It allows you to search the SDSS database by building SQL queries step-by-step. It is more powerful and flexible than the Search Form tool, but can't do as much as the SQL Search tool.

To learn a little more about how SQL works, see the tutorial on Searching the Data. To learn what the tables and columns mean, see the Schema Browser (it will open in a new window).

As you use the Query Builder, follow the instructions below the main window. To get started, click the Build tab, then click FROM.