Description of the illustration querywindow001.gif

The Query Window shows a field for writing a SQL statement with buttons to click to execute the statement.

Below that are two tabs: Query and Explain Plan. The EXPLAIN PLAN has column headings such as Operation, Optimizer, and Cost. The line in this screen shot says SELECT STATEMENT, the second expandable item says SORT AGGREGATE, but other queries may show different lines.

Column headings are described in EXPLAIN PLAN Columns Table.