Chọn "name from names". Xóa tất cả dòng có tên trùng lặp. Nhập lại dòng không có dữ liệu trùng lặp. Xem danh sách mới.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
" After "SQL," which stands for Standard Query Language, enter "select name from names." After "SQL," enter "delete from names where name='Alan';." Note that capitalization is important here, so this will delete all of the rows named "Alan." After "SQL," enter "commit." Now that you have deleted all rows with the example name "Alan," you can insert one back by entering "insert into name values ('Alan');." After "SQL," enter "commit" to create your new row. Once you have completed the above steps