typeorm/docs/update-query-builder.md

Update using Query Builder

You can create UPDATE queries using QueryBuilder. Examples:

import {getConnection} from "typeorm";

await getConnection()
    .createQueryBuilder()
    .update(User)
    .set({ firstName: "Timber", lastName: "Saw" })
    .where("id = :id", { id: 1 })
    .execute();

This is the most efficient in terms of performance way to update things in your database.