All repository and manager .find*
methods accept special options you can use to query data you need without using QueryBuilder
:
select
- indicates which properties of the main object must be selected
userRepository.find({
select: {
firstName: true,
lastName: true,
},
})
will execute following query:
SELECT "firstName", "lastName" FROM "user"
relations
- relations needs to be loaded with the main entity. Sub-relations can also be loaded (shorthand forjoin
andleftJoinAndSelect
)
userRepository.find({
relations: {
profile: true,
photos: true,
videos: true,
},
})
userRepository.find({
relations: {
profile: true,
photos: true,
videos: {
videoAttributes: true,
},
},
})
will execute following queries:
SELECT * FROM "user"
LEFT JOIN "profile" ON "profile"."id" = "user"."profileId"
LEFT JOIN "photos" ON "photos"."id" = "user"."photoId"
LEFT JOIN "videos" ON "videos"."id" = "user"."videoId"
SELECT * FROM "user"
LEFT JOIN "profile" ON "profile"."id" = "user"."profileId"
LEFT JOIN "photos" ON "photos"."id" = "user"."photoId"
LEFT JOIN "videos" ON "videos"."id" = "user"."videoId"
LEFT JOIN "video_attributes" ON "video_attributes"."id" = "videos"."video_attributesId"
where
- simple conditions by which entity should be queried.
userRepository.find({
where: {
firstName: "Timber",
lastName: "Saw",
},
})
will execute following query:
SELECT * FROM "user"
WHERE "firstName" = 'Timber' AND "lastName" = 'Saw'
Querying a column from an embedded entity should be done with respect to the hierarchy in which it was defined. Example:
userRepository.find({
relations: {
project: true,
},
where: {
project: {
name: "TypeORM",
initials: "TORM",
},
},
})
will execute following query:
SELECT * FROM "user"
LEFT JOIN "project" ON "project"."id" = "user"."projectId"
WHERE "project"."name" = 'TypeORM' AND "project"."initials" = 'TORM'
Querying with OR operator:
userRepository.find({
where: [
{ firstName: "Timber", lastName: "Saw" },
{ firstName: "Stan", lastName: "Lee" },
],
})
will execute following query:
SELECT * FROM "user" WHERE ("firstName" = 'Timber' AND "lastName" = 'Saw') OR ("firstName" = 'Stan' AND "lastName" = 'Lee')
order
- selection order.
userRepository.find({
order: {
name: "ASC",
id: "DESC",
},
})
will execute following query:
SELECT * FROM "user"
ORDER BY "name" ASC, "id" DESC
withDeleted
- include entities which have been soft deleted withsoftDelete
orsoftRemove
, e.g. have their@DeleteDateColumn
column set. By default, soft deleted entities are not included.
userRepository.find({
withDeleted: true,
})
find*
methods which return multiple entities (find
, findBy
, findAndCount
, findAndCountBy
) also accept following options:
skip
- offset (paginated) from where entities should be taken.
userRepository.find({
skip: 5,
})
SELECT * FROM "user"
OFFSET 5
take
- limit (paginated) - max number of entities that should be taken.
userRepository.find({
take: 10,
})
will execute following query:
SELECT * FROM "user"
LIMIT 10
** skip
and take
should be used together
** If you are using typeorm with MSSQL, and want to use take
or limit
, you need to use order as well or you will receive the following error: 'Invalid usage of the option NEXT in the FETCH statement.'
userRepository.find({
order: {
columnName: "ASC",
},
skip: 0,
take: 10,
})
will execute following query:
SELECT * FROM "user"
ORDER BY "columnName" ASC
LIMIT 10 OFFSET 0
cache
- Enables or disables query result caching. See caching for more information and options.
userRepository.find({
cache: true,
})
lock
- Enables locking mechanism for query. Can be used only infindOne
andfindOneBy
methods.lock
is an object which can be defined as:
{ mode: "optimistic", version: number | Date }
or
{
mode: "pessimistic_read" |
"pessimistic_write" |
"dirty_read" |
"pessimistic_partial_write" |
"pessimistic_write_or_fail" |
"for_no_key_update"
}
for example:
userRepository.findOne({
where: {
id: 1,
},
lock: { mode: "optimistic", version: 1 },
})
Support of lock modes, and SQL statements they translate to, are listed in the table below (blank cell denotes unsupported). When specified lock mode is not supported, a LockNotSupportedOnGivenDriverError
error will be thrown.
| | pessimistic_read | pessimistic_write | dirty_read | pessimistic_partial_write | pessimistic_write_or_fail | for_no_key_update |
| --------------- | -------------------- | ----------------------- | ------------- | --------------------------- | --------------------------- | ------------------- |
| MySQL | LOCK IN SHARE MODE | FOR UPDATE | (nothing) | FOR UPDATE SKIP LOCKED | FOR UPDATE NOWAIT | |
| Postgres | FOR SHARE | FOR UPDATE | (nothing) | FOR UPDATE SKIP LOCKED | FOR UPDATE NOWAIT | FOR NO KEY UPDATE |
| Oracle | FOR UPDATE | FOR UPDATE | (nothing) | | | |
| SQL Server | WITH (HOLDLOCK, ROWLOCK) | WITH (UPDLOCK, ROWLOCK) | WITH (NOLOCK) | | | |
| AuroraDataApi | LOCK IN SHARE MODE | FOR UPDATE | (nothing) | | | |
| CockroachDB | | FOR UPDATE | (nothing) | | FOR UPDATE NOWAIT | FOR NO KEY UPDATE |
Complete example of find options:
userRepository.find({
select: {
firstName: true,
lastName: true,
},
relations: {
profile: true,
photos: true,
videos: true,
},
where: {
firstName: "Timber",
lastName: "Saw",
profile: {
userName: "tshaw",
},
},
order: {
name: "ASC",
id: "DESC",
},
skip: 5,
take: 10,
cache: true,
})
Find without arguments:
userRepository.find()
will execute following query:
SELECT * FROM "user"
TypeORM provides a lot of built-in operators that can be used to create more complex comparisons:
Not
import { Not } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
title: Not("About #1"),
})
will execute following query:
SELECT * FROM "post" WHERE "title" != 'About #1'
LessThan
import { LessThan } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
likes: LessThan(10),
})
will execute following query:
SELECT * FROM "post" WHERE "likes" < 10
LessThanOrEqual
import { LessThanOrEqual } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
likes: LessThanOrEqual(10),
})
will execute following query:
SELECT * FROM "post" WHERE "likes" <= 10
MoreThan
import { MoreThan } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
likes: MoreThan(10),
})
will execute following query:
SELECT * FROM "post" WHERE "likes" > 10
MoreThanOrEqual
import { MoreThanOrEqual } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
likes: MoreThanOrEqual(10),
})
will execute following query:
SELECT * FROM "post" WHERE "likes" >= 10
Equal
import { Equal } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
title: Equal("About #2"),
})
will execute following query:
SELECT * FROM "post" WHERE "title" = 'About #2'
Like
import { Like } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
title: Like("%out #%"),
})
will execute following query:
SELECT * FROM "post" WHERE "title" LIKE '%out #%'
ILike
import { ILike } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
title: ILike("%out #%"),
})
will execute following query:
SELECT * FROM "post" WHERE "title" ILIKE '%out #%'
Between
import { Between } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
likes: Between(1, 10),
})
will execute following query:
SELECT * FROM "post" WHERE "likes" BETWEEN 1 AND 10
In
import { In } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
title: In(["About #2", "About #3"]),
})
will execute following query:
SELECT * FROM "post" WHERE "title" IN ('About #2','About #3')
Any
import { Any } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
title: Any(["About #2", "About #3"]),
})
will execute following query (Postgres notation):
SELECT * FROM "post" WHERE "title" = ANY(['About #2','About #3'])
IsNull
import { IsNull } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
title: IsNull(),
})
will execute following query:
SELECT * FROM "post" WHERE "title" IS NULL
ArrayContains
import { ArrayContains } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
categories: ArrayContains(["TypeScript"]),
})
will execute following query:
SELECT * FROM "post" WHERE "categories" @> '{TypeScript}'
ArrayContainedBy
import { ArrayContainedBy } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
categories: ArrayContainedBy(["TypeScript"]),
})
will execute following query:
SELECT * FROM "post" WHERE "categories" <@ '{TypeScript}'
ArrayOverlap
import { ArrayOverlap } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
categories: ArrayOverlap(["TypeScript"]),
})
will execute following query:
SELECT * FROM "post" WHERE "categories" && '{TypeScript}'
Raw
import { Raw } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
likes: Raw("dislikes - 4"),
})
will execute following query:
SELECT * FROM "post" WHERE "likes" = "dislikes" - 4
In the simplest case, a raw query is inserted immediately after the equal symbol. But you can also completely rewrite the comparison logic using the function.
import { Raw } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
currentDate: Raw((alias) => `${alias} > NOW()`),
})
will execute following query:
SELECT * FROM "post" WHERE "currentDate" > NOW()
If you need to provide user input, you should not include the user input directly in your query as this may create a SQL injection vulnerability. Instead, you can use the second argument of the Raw
function to provide a list of parameters to bind to the query.
import { Raw } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
currentDate: Raw((alias) => `${alias} > :date`, { date: "2020-10-06" }),
})
will execute following query:
SELECT * FROM "post" WHERE "currentDate" > '2020-10-06'
If you need to provide user input that is an array, you can bind them as a list of values in the SQL statement by using the special expression syntax:
import { Raw } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findby({
title: Raw((alias) => `${alias} IN (:...titles)`, {
titles: [
"Go To Statement Considered Harmful",
"Structured Programming",
],
}),
})
will execute following query:
SELECT * FROM "post" WHERE "titles" IN ('Go To Statement Considered Harmful', 'Structured Programming')
Also you can combine these operators with Not
operator:
import { Not, MoreThan, Equal } from "typeorm"
const loadedPosts = await dataSource.getRepository(Post).findBy({
likes: Not(MoreThan(10)),
title: Not(Equal("About #2")),
})
will execute following query:
SELECT * FROM "post" WHERE NOT("likes" > 10) AND NOT("title" = 'About #2')