set tablerulers= { on | off}

Controls the display of the Table Rulers. When set to on, the Row Ruler, Column Ruler and Table Icon appear in the edit view. When set to off, these interface items are hidden.

You can set the Window preference for displaying Table Rulers. Go to Tools > Preferences, and, in the Window category, turn on Table Rulers.

You can also set Table Rulers display using the View > Tables > Table Rulers menu command.