在方格的下方，选择组成资料表主索引键的资料行。
In the grid beneath, choose the columns contributing to the table's primary key.
若要在不同的资料表之间切换，请使用每个面板中资料表方格上方的下拉式清单。
To switch between the different tables, use the drop-down list above the table grid in each panel.
检视类似试算表的方格中最近执行选取查询的结果集。
View the result set for the most recently executed Select query in a spreadsheet-like grid.
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