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Technical Vocabularyabbreviation · /ˌoʊ.ɑːr.ˈɛm/

ORM

In simple English

An ORM is a software layer that sits between your application code and the database. Instead of writing SQL statements like SELECT, INSERT, or UPDATE, developers write code in their programming language (Python, JavaScript, Java, etc.) that works with objects. The ORM automatically converts these objects into database operations. Common examples include SQLAlchemy for Python, Sequelize for Node.js, and Hibernate for Java. ORMs are useful because they reduce repetitive SQL code, provide built-in protection against SQL injection attacks, and allow developers to switch databases more easily without changing application logic.

What is ORM in programming and how does it simplify database interactions?

At a glanceCEFR C1
Commonness4/5
Versatility4/5
FormalityCasualFormalNeutral
Spoken ↔ WrittenSpokenWrittenBoth
Directness ↔ DiplomaticDirectDiplomaticDirect
RegionUS and UK
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Say it like this

✓We are using an ORM to abstract the database layer
✓The ORM handles all our database queries automatically
✓Let us switch to a different ORM for better performance

Real examples

in a standup

"We decided to implement Sequelize, an ORM, to streamline our database operations and reduce SQL code in the project."

in a code review

"This ORM query is cleaner than the raw SQL we had before, and it is safer against injection attacks."

in a team meeting

"Using an ORM will help us maintain consistency across different parts of our application when we talk to the database."

Don't say this

Handle with care. ORM is a technical tool, not a verb meaning to fix or check code. Do not use it as a general action verb. It specifically refers to the database mapping framework.

✕We need to ORM this query before shipping.
✓We need to rewrite this query using an ORM before shipping.— ORM is a noun and tool, not a verb. You cannot 'ORM' something. You use an ORM to do something.
✕Our ORM is broken, let us fix the database.
✓Our ORM is broken, let us fix the ORM configuration or rewrite the database mapping.— Problems with an ORM are usually in the mapping logic or configuration, not necessarily the database itself.
✕ORMs are always faster than SQL.
✓ORMs are convenient, but sometimes hand-written SQL is faster for complex queries.— ORMs provide convenience and abstraction, but they may generate less efficient queries than optimized SQL.

Other forms

noun

ORM

"We selected Hibernate as our ORM for this Java project."

noun

ORM framework

"Choosing the right ORM framework can significantly impact development speed."

noun

ORM library

"SQLAlchemy is a popular ORM library in the Python ecosystem."

Often used with

use an ORMMost common way to describe adopting ORM technology in a project
ORM frameworkRefers to the complete ORM system, such as Sequelize or Hibernate
ORM layerDescribes the abstraction level that the ORM creates between code and database
ORM queryA database query written using ORM syntax rather than raw SQL
implement an ORMTo add ORM technology to a project or application

Similar words

object-relational mapperFull form of ORM; used less frequently in spoken tech conversation
database abstraction layerBroader term that can include tools beyond traditional ORMs
data mapperA related design pattern, but not always synonymous with ORM

Opposites

raw SQLquery builder

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Practice

Try it

4 quick exercises

Complete the sentence

1. Our team decided to use an _______ to simplify database interactions and reduce SQL code.

Pick the most natural phrasing

2. What is the correct way to talk about using Sequelize in your project?

Spot the mistake

3. Which sentence uses ORM incorrectly?

Rewrite naturally

4. Rewrite this sentence using ORM correctly: 'We should use something that changes our code objects into database language automatically.'

Questions

Quick poll

Have you said "orm" in a standup this week?

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