There are two ways to open the Data Editor.
Using the Object Explorer:
There are three options to retrieve table data: Return All Rows,
Return Top Rows and Query.
The Return All Rows option attempts to
asyncroniosly retrieve all data from the table in the grid. You can
interrupt the retrieval process at any time using Cancel toolbar
button or Data -> Cancel top-level menu.
The Return Top Rows option attempts
to retrieve specified number of the table rows. You will be to retrieve
the rest of rows later on.
The Query option allows to specify SQL SELECT
statement to retrieve the data for the selected database
object.
Using the top-level Tools menu: