How Can I Select All Columns Plus ROWNUM in an Oracle SELECT Statement?

Selecting Additional Columns with "ROWNUM"

In Oracle, the "SELECT" statement allows you to retrieve specific columns from a table. It's also possible to include additional columns, such as "ROWNUM," which returns the row number in the result set.

Problem

Instead of manually specifying each column name, you want to select all the columns in a table plus the "ROWNUM" column. Attempts to use "*" without explicitly qualifying it return only the table columns, omitting "ROWNUM."

Solution

To include all columns along with "ROWNUM," qualify the "*" with the table name:

select rownum, table.* from table

This query will retrieve the "ROWNUM" column as well as all the columns in the specified table.

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