Exposed VS requery

Compare Exposed vs requery and see what are their differences.


Kotlin SQL Framework (by JetBrains)


requery - modern SQL based query & persistence for Java / Kotlin / Android (by requery)
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Exposed requery
27 1
7,478 3,126
2.6% 0.2%
8.8 0.0
3 days ago over 1 year ago
Kotlin Java
Apache License 2.0 Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of Exposed. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-29.
  • Database Testing with Testcontainers and Kotlin Exposed ORM
    3 projects | | 29 Jun 2023
    object TestDatabase { private val mySQLContainer: MySQLContainer = MySQLContainer("mysql:8.0.26").apply { withDatabaseName("test-db") withUsername("test-user") withPassword("test-password") start() // Start the container } init { val config = HikariConfig().apply { jdbcUrl = mySQLContainer.jdbcUrl username = mySQLContainer.username password = mySQLContainer.password driverClassName = "com.mysql.cj.jdbc.Driver" maximumPoolSize = 10 } val dataSource = HikariDataSource(config) // This doesn't connect to the database but provides a descriptor for future use // In the main app, we would do this on system start up // Database.connect(dataSource) // Create the schema transaction { SchemaUtils.create(Users) } } }
  • I'm creating a REST API using KTOR. What's the best ORM to go with KTOR ?
    2 projects | /r/Kotlin | 28 May 2023
    Exposed SQL is pretty good.
  • How are you all handling database persistence?
    4 projects | /r/Kotlin | 22 Mar 2023
    Exposed by JetBrains
    4 projects | /r/Kotlin | 22 Mar 2023
  • Why people don't like Java?
    5 projects | /r/programming | 27 Feb 2023
    Alternatively there are... hybrid solutions like Kotlin's or that don't quite... do all the heavy lifting for querying but allow you to sorta stitch queries together manually.
  • Using PostgreSQL as an Append-only Datastore with Kotlin and Exposed
    3 projects | /r/Kotlin | 24 Feb 2023
    In our last episode (\_dWsNMUs) we worked out how to save stock items in PostgreSQL ( using the JetBrains Exposed library ( This time we refactor our existing file-based storage, extracting an interface that we can implement with files, in-memory, or with Exposed. For the database version, instead of replacing items in a table when they change, we choose to implement an append-only datastore. This keeps all the old versions of every row, using a query to select the latest versions when we want to see the current state. This has the advantage that we can rebuild the state of our system if things go wrong, and may also be faster than amending when we consider transactions. This is part 62 of an exploration of where a Test Driven Development implementation of the Gilded Rose stock control system might take us in Kotlin. You can see the whole series as a playlist\_KEZVW7BW7m2 and the code on GitHub If you like this, you’ll probably like my book Java to Kotlin, A Refactoring Guidebook ( It's about far more than just the syntax differences between the languages - it shows how to upgrade your thinking to a more functional style. I have some free time between producing videos and working for team Gilded Rose. If you like these videos I'd like to work with you - please get in touch - [email protected]
  • Writing to db
    5 projects | /r/Kotlin | 20 Feb 2023
    I have used hikari and exposed to do this in the past with postgres, although other dialects are supported.
  • KTor and non-blocking sql
    2 projects | /r/Kotlin | 18 Feb 2023
    This falls apart as soon as you need to chain transactions across multiple services/DAOs. You end up making everything non-suspend or use suspendTransaction and have to pass the parent txn around which isn’t ideal (
  • PostgreSQL and Exposed - Kotlin database access
    2 projects | /r/Kotlin | 17 Feb 2023
    Whether or not we persue our Event Sourcing experiment from the lastepisode, we know that we want to store our stock data in a database ofsome sort. So today we investigate using the JetBrains Exposed library ( to write to and read from PostgreSQL (
  • Could I create a blogging platform with ktor? (For learning purposes)
    2 projects | /r/Kotlin | 9 Jan 2022
    I used exposed to access a database You can use sqlite for the easiest setup.


Posts with mentions or reviews of requery. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-01-22.

What are some alternatives?

When comparing Exposed and requery you can also consider the following projects:

Ktorm - A lightweight ORM framework for Kotlin with strong-typed SQL DSL and sequence APIs.

SQLDelight - SQLDelight - Generates typesafe Kotlin APIs from SQL

kotlin-jpa-specification-dsl - This library provides a fluent DSL for querying spring data JPA repositories using spring data Specifications (i.e. the JPA Criteria API), without boilerplate code or a generated metamodel.

kwery - Kwery is an SQL library for Kotlin

jOOQ - jOOQ is the best way to write SQL in Java

kotliquery - A handy Database access library in Kotlin

kotlin-nosql - NoSQL database query and access library for Kotlin

DBFlow - A blazing fast, powerful, and very simple ORM android database library that writes database code for you.

MapDB - MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

kmongo - [deprecated] KMongo - a Kotlin toolkit for Mongo

jasync-sql - Java & Kotlin Async DataBase Driver for MySQL and PostgreSQL written in Kotlin