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MySQL SELECT LIMIT statement
MySQL statement SELECT LIMIT is used to extract records from one or more tables into MySQL and limit the number of records to be returned based on the limit value.
Syntax of SELECT LIMIT in MySQL
SELECT expressions
FROM tables
[WHERE conditions]
[ORDER BY expression [ ASC | DESC ]].
LIMIT row_count;
Parameters and arguments of the statement
- expressions – columns or calculations that you want to get.
- tables – the tables from which you want to get the records. There must be at least one table listed in the FROM sentence.
- WHERE conditions are optional. The conditions that must be met for the selected records.
- ORDER BY expression – optional. It is used in the SELECT LIMIT instruction so that you can organize the results of the records you want to return.
- LIMIT row_count – specifies a limited number of rows in the resulting set to be returned based on row_count. For example, LIMIT 10 will return the first 10 rows that meet the SELECT criteria. In this case, the sort order is meaningful, so be sure to use the ORDER BY operator accordingly.
Example of how to use LIMIT
Let’s see how to use the SELECT statement with LIMIT in MySQL.
For example:
SELECT contact_id, first_name, last_name
FROM contacts
WHERE website = 'bestsite.net'
ORDER BY contact_id DESC
LIMIT 5;
This MySQL example SELECT LIMIT will select the first 5 entries from the contacts table, where website = ‘bestsite.net’. Note that the results are sorted by contact_id in descending order so that the 5 largest contact_id values are returned by SELECT LIMIT.
If there are other entries in the contact table where website = ‘bestsite.net’, they will not be returned by SELECT LIMIT in MySQL.
If we wanted to select the 5 lowest contact_id values instead of the highest, we could change the sort order as follows:
SELECT contact_id, last_name, first_name
FROM contacts
WHERE website = 'TechOnTheNet.com'
ORDER BY contact_id ASC
LIMIT 5;
The results will now be sorted by contact_id in ascending order, so the first 5 smallest contact_id entries with website = ‘bestsite.net’ will be returned by this SELECT LIMIT operator. This query will not return any other records.
SELECT with LIMIT in SQL
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