Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
813 views
in Technique[技术] by (71.8m points)

mysql - How to SELECT the last 10 rows of an SQL table which has no ID field?

I have an MySQL table with 25000 rows.

This is an imported CSV file so I want to look at the last ten rows to make sure it imported everything.

However, since there is no ID column, I can't say:

SELECT * FROM big_table ORDER BY id DESC

What SQL statement would show me the last 10 rows of this table?

The structure of the table is simply this:

columns are: A, B, C, D, ..., AA, AB, AC, ... (like Excel)
all fields are of type TEXT
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

All the answers here are better, but just in case... There is a way of getting 10 last added records. (thou this is quite unreliable :) ) still you can do something like

SELECT * FROM table LIMIT 10 OFFSET N-10

N - should be the total amount of rows in the table (SELECT count(*) FROM table). You can put it in a single query using prepared queries but I'll not get into that.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...