Select last row in MySQL
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How can I
SELECT the last row in a MySQL table?
INSERTing data and I need to retrieve a column value from the previous row.
auto_increment in the table.
Yes, there's an auto_increment in there
If you want the last of all the rows in the table, then this is finally the time where
MAX(id) is the right answer! Kind of:
SELECT fields FROM table ORDER BY id DESC LIMIT 1;
You can do it with a sub-query: SELECT * FROM ( SELECT * FROM table ORDER BY id DESC LIMIT 50 ) sub ORDER BY id ASC. This will There is no first or last row; no previous row or next row. You'll have to sort your set of unordered rows by some field first, and then you are free the iterate through the resultset in the order you defined. Since you have an auto incrementing field, I assume you want that to be the sorting field.
Keep in mind that tables in relational databases are just sets of rows. And sets in mathematics are unordered collections. There is no first or last row; no previous row or next row.
You'll have to sort your set of unordered rows by some field first, and then you are free the iterate through the resultset in the order you defined.
Since you have an auto incrementing field, I assume you want that to be the sorting field. In that case, you may want to do the following:
SELECT * FROM your_table ORDER BY your_auto_increment_field DESC LIMIT 1;
See how we're first sorting the set of unordered rows by the
your_auto_increment_field (or whatever you have it called) in descending order. Then we limit the resultset to just the first row with
How to select last row in MySQL? To select the last row, we can use ORDER BY clause with desc (descending) property and Limit 1. Let us first create a table and insert some records with the help of insert command. To select last 10 rows from MySQL, we can use a subquery with SELECT statement and Limit concept. The following is an example. Creating a table. mysql> create table Last10RecordsDemo -> ( -> id int, -> name varchar(100) -> ); Query OK, 0 rows affected (0.75 sec) Inserting records into the table. mysql> insert into Last10RecordsDemo values(1,'John'), (2,'Carol'), (3,'Bob'), (4,'Sam'), (5,'David'), (6,'Taylor'); Query OK, 6 rows affected (0.12 sec) Records: 6 Duplicates: 0 Warnings: 0 mysql>
on tables with many rows are two queries probably faster...
SELECT @last_id := MAX(id) FROM table; SELECT * FROM table WHERE id = @last_id;
To select last 10 rows from MySQL, we can use a subquery with SELECT statement and Limit concept. The following is an example. Creating a If you want the entire row, then use the following query. mysql> select *from LastInsertedRow where Id= (SELECT LAST_INSERT_ID()); The following is the output. +----+----------+---------+ | Id | UserName | UserAge | +----+----------+---------+ | 6 | David | 22 | +----+----------+---------+ 1 row in set (0.05 sec)
You can combine two queries suggested by @spacepille into single query that looks like this:
SELECT * FROM `table_name` WHERE id=(SELECT MAX(id) FROM `table_name`);
It should work blazing fast, but on INNODB tables it's fraction of milisecond slower than ORDER+LIMIT.
As explained in the documentation, there are rules on what makes a valid identifier. This rule is what affects your case: Identifiers may begin For a more precised way you can start by selecting all the rows you want to print out and then you grab the last row id if you have an id column(i recommend you put one) then subtract ten from the last id number and that will be where you want to start, this will make your program to function autonomously and for any number of rows, but if you write the value directly i think you will have to change the code every time data is inserted into your table.I think this helps.Pax et Bonum.
Make it simply use:
Glad to meet you again. Are you still suffering from the old database problem we were talken about in this thread? What about the ERM fragment I sent you in the Select max, min, last row for each group in SQL without a subquery. June 26, 2017. June 26, 2017. Tomer Shay @ EverSQL. In several RDBMS databases, including MySQL, subqueries are often one of the causes for performance issues. Therefore, we have an incentive to avoid them whenever we can and to find alternative ways to implement our requirements. One of the most popular uses for subselects in SQL is when one needs to fetch the first, last, maximum or minimum row for each group in a table.
tutorial we will look at how you can use MySQL at getting the last record in a Group By of records. select * from posts group by category_id. There is a table messages that contains data as shown below: Id Name Other_Columns ----- 1 A A_data_1 2 A A_data_2 3 A A_data_3 4 B B_da
Let's see how we can fetch the last row using the limit/top from the transactions table mentioned above. MySQL. SELECT * FROM transactions ORDER BY date MySQL LAST_INSERT_ID function examples. Let’s look at an example of using MySQL LAST_INSERT_ID function. A) Using MySQL LAST_INSERT_ID() function to get value when inserting one row into a table. First, create a new table named messages for testing. In the messages table, we set the AUTO_INCREMENT attribute for the id column.
How can i make it? I will select the latest record according to branch in where clause. Hi, using SQL (MySQL) you can do it like this: SELECT The first row that you want to retrieve is startnumber, and the number of rows to retrieve is numberofrows. If startnumber is not specified, 1 is assumed. To select only the first three customers who live in Texas, use this query: SELECT * FROM Customer WHERE state="TX" LIMIT 3. Use the DISTINCT keyword. Rows in the table can have identical
- Define "last row". The one with the highest ID? Or the most recently added one?
- What indicates the last row - Is there an auto_increment or DATETIME column in the table?
- Yes, there's an
auto_incrementin there. I'd like the most recently added one.
- There is no last row in a set, as EboMike and OMG Ponies said. What would you do if I'd give you a bag full of balls and ask you to give me the last ball?
- I'm afraid that this gets slow if it needs to sort million of rows, isn't it?
- I just ran this over 20m rows and it was very fast. I assume there's some kind of special case for handling this query. (EDIT: MySQL 5.7, InnoDB engine)
- @Pekka: I don't wanna use order by, is there any other option to do it?
- @Slawa Not if
- @karthikeyan wrote his answer four days ago and I answered this in Dec 2015.
- nope, me edited and corrected some spellings 4 days ago... post date is 2014
answered Jun 14 at 9:41thats about 1 year and 6 month earlier :)
- Just to clear the air here vzr is right. The 'Jun 14' means Jun 14, 2016 also @karthikeyan has only been a member for two months at this point.