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LIMIT clause

  • reference
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    Purpose

    When you don’t need the entire resultset, use the LIMIT clause to specify the maximum number of documents to be returned in a resultset by a SELECT query.

    The LIMIT and OFFSET clauses are evaluated after the ORDER BY clause.

    A negative value is the same as LIMIT 0.

    Starting from version 4.5, the LIMIT clause in INSERT, UPDATE, and DELETE statements is no longer a hint. It indicates that the actual number of mutations will be less than or equal to the specified LIMIT.

    Syntax

    LIMIT expr
    limit clause

    Arguments

    expr

    Integer or an expression that evaluates to an integer representing the number of resulting documents.

    Examples

    Example 1. Get only 2 documents of hotels with an empty room
    SELECT name, address, city, country, url
    FROM `travel-sample`.inventory.hotel
    WHERE vacancy = true
    LIMIT 2;
    Result
    [
      {
        "address": "Capstone Road, ME7 3JE",
        "city": "Medway",
        "country": "United Kingdom",
        "name": "Medway Youth Hostel",
        "url": "http://www.yha.org.uk"
      },
      {
        "address": "6 rue aux Juifs",
        "city": "Giverny",
        "country": "France",
        "name": "The Robins",
        "url": "http://givernyguesthouse.com/robin.htm"
      }
    ]
    Example 2. Set the limit of Example 1 based on an equation
    SELECT name, address, city, country, url
    FROM `travel-sample`.inventory.hotel
    WHERE vacancy = true
    LIMIT (20/10);
    Result
    [
      {
        "address": "Capstone Road, ME7 3JE",
        "city": "Medway",
        "country": "United Kingdom",
        "name": "Medway Youth Hostel",
        "url": "http://www.yha.org.uk"
      },
      {
        "address": "6 rue aux Juifs",
        "city": "Giverny",
        "country": "France",
        "name": "The Robins",
        "url": "http://givernyguesthouse.com/robin.htm"
      }
    ]