title: Insert the same fixed value into multiple rows
body: <p>I've got a table with a column, lets call it <code>table_column</code> that is currently <code>null</code> for all rows of the table.  I'd like to insert the value <code>"test"</code> into that column for all rows.  Can someone give me the SQL for this?</p>
  
  <p>I've tried <code> INSERT INTO table (table_column) VALUES ("test");</code> but that only populates that last row.  How do I do all of the rows at once?</p>