如何在访问表中插入具有值行号的列

Question

I have a large access table . I need to have a column which will have value as row number how can I write an sql query fill an empty column inserted by me with row numbers

Answer 1

Im sorry, im a little confused at what you're getting at, but could you not just do an alter table?

ALTER TABLE my_table
 ADD row_number  int;

Answer 2

使Field数据类型为AutoNumber，它将自动为您完成。

Answer 3

Write a sequence for your table . Then have default value as sequence .

So, whenever the column does not get users values , it will take the sequence values.