Exposed VS kwery

Exposed

• Drizzle is just as unready for prime-time as Prisma, what else is there?
  12 projects | /r/reactjs | 6 Dec 2023

  So is it like Exposed for Kotlin which is a typesafe Kotlin DSL for building sql queries? I’ve been looking for something like this in typescript! https://github.com/JetBrains/Exposed

• Database Testing with Testcontainers and Kotlin Exposed ORM
  3 projects | dev.to | 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 // https://github.com/JetBrains/Exposed/wiki/Database-and-DataSource 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.

• speed of a left join with millions of rows
  1 project | /r/SQL | 27 May 2023

  I am using Kotlins Exposed DSL to access my postgreSQL database. I am running an SQL query which involves doing a one-to-many left join, with the first table having tens of thousands of rows and the second table having millions of rows. The database is stored locally on the machine. I would expect the returned query to be less than one thousand rows.

• Return a nested list of child table using Kotlin Exposed Dao
  1 project | /r/Kotlin | 22 May 2023

  I understand that `referrersOn` and `referencedOn` can be used, however in the documentations StarWars example, the child table needs to have a column indicating the parent_id row it is joined to. This does not work in my case as my child table can be associated to multiple parent_ids.

• Replicating Jetbrains Exposed Star Wars Example in IntelliJ Scratch file
  1 project | /r/IntelliJIDEA | 21 May 2023

  I am following this wiki to learn kotlin exposed. It contains an example of 'Referencing' using Star Wars data. I would like to create a scratch and/or console file in IntelliJ which reproduces this simple example. However When I try to run the code I get errors (see below). Is there something I am missing here?

• How are you all handling database persistence?
  4 projects | /r/Kotlin | 22 Mar 2023

  Exposed by JetBrains https://github.com/JetBrains/Exposed

• Why people don't like Java?
  5 projects | /r/programming | 27 Feb 2023

  Alternatively there are... hybrid solutions like Kotlin's https://github.com/JetBrains/Exposed or https://jdbi.org/ 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 (https://youtu.be/Uza\_dWsNMUs) we worked out how to save stock items in PostgreSQL (https://www.postgresql.org/) using the JetBrains Exposed library (https://github.com/JetBrains/Exposed). 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 https://www.youtube.com/playlist?list=PL1ssMPpyqociJNwykAOB9\_KEZVW7BW7m2 and the code on GitHub https://github.com/dmcg/gilded-rose-tdd If you like this, you’ll probably like my book Java to Kotlin, A Refactoring Guidebook (http://java-to-kotlin.dev). 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.

kwery

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Tracking mentions began in Dec 2020.