Filtering and Sorting (Concepts) | Prisma Documentation (2024)

Prisma Client supports filtering with the where query option, and sorting with the orderBy query option.

Filtering​

Prisma Client allows you to filter records on any combination of model fields, including related models, and supports a variety of filter conditions.

The following query:

• Returns all User records with:
  • an email address that ends with prisma.io and
  • at least one published post (a relation query)
• Returns all User fields
• Includes all related Post records where published equals true

const result = await prisma.user.findMany({
 where: {
 email: {
 endsWith: 'prisma.io',
 },
 posts: {
 some: {
 published: true,
 },
 },
 },
 include: {
 posts: {
 where: {
 published: true,
 },
 },
 },
})

Filter conditions and operators​

Refer to Prisma Client's reference documentation for a full list of operators , such as startsWith and contains.

Combining operators​

You can use operators (such as NOT and OR ) to filter by a combination of conditions. The following query returns all users with an email that ends in "prisma.io" or "gmail.com", but not "hotmail.com":

const result = await prisma.user.findMany({
 where: {
 OR: [
 {
 email: {
 endsWith: 'prisma.io',
 },
 },
 { email: { endsWith: 'gmail.com' } },
 ],
 NOT: {
 email: {
 endsWith: 'hotmail.com',
 },
 },
 },
 select: {
 email: true,
 },
})

Filter on null fields​

The following query returns all posts whose content field is null:

const posts = await prisma.post.findMany({
 where: {
 content: null,
 },
})

Filter for non-null fields​

The following query returns all posts whose content field is not null:

const posts = await prisma.post.findMany({
 where: {
 content: { not: null },
 },
})

Filter on relations​

Prisma Client supports filtering on related records. For example, in the following schema, a user can have many blog posts:

model User {
 id Int @id @default(autoincrement())
 name String?
 email String @unique
 posts Post[] // User can have many posts
}

model Post {
 id Int @id @default(autoincrement())
 title String
 published Boolean @default(true)
 author User @relation(fields: [authorId], references: [id])
 authorId Int
}

The one-to-many relation between User and Post allows you to query users based on their posts - for example, the following query returns all users where at least one post (some) has more than 10 views:

const result = await prisma.user.findMany({
 where: {
 posts: {
 some: {
 views: {
 gt: 10,
 },
 },
 },
 },
})

You can also query posts based on the properties of the author. For example, the following query returns all posts where the author's email contains "prisma.io":

const res = await prisma.post.findMany({
 where: {
 author: {
 email: {
 contains: 'prisma.io',
 },
 },
 },
})

Filter on scalar lists / arrays​

Scalar lists (for example, String[]) have a special set of filter conditions - for example, the following query returns all posts where the tags array contains databases:

const posts = await client.post.findMany({
 where: {
 tags: {
 has: 'databases',
 },
 },
})

Case-insensitive filtering​

Case-insensitive filtering is available as a feature for the PostgreSQL and MongoDB providers. MySQL, MariaDB and Microsoft SQL Server are case-insensitive by default, and do not require a Prisma Client feature to make case-insensitive filtering possible.

To use case-insensitive filtering, add the mode property to a particular filter and specify insensitive:

const users = await prisma.user.findMany({
 where: {
 email: {
 endsWith: 'prisma.io',
 mode: 'insensitive', // Default value: default
 },
 name: {
 equals: 'Archibald', // Default mode
 },
 },
})

See also: Case sensitivity

Filtering FAQs​

How does filtering work at the database level?​

For MySQL and PostgreSQL, Prisma Client utilizes the LIKE (and ILIKE) operator to search for a given pattern. The operators have built-in pattern matching using symbols unique to LIKE. The pattern-matching symbols include % for zero or more characters (similar to * in other regex implementations) and _ for one character (similar to .)

To match the literal characters, % or _, make sure you escape those characters. For example:

const users = await prisma.user.findMany({
 where: {
 name: {
 startsWith: '_benny',
 },
 },
})

The above query will match any user whose name starts with a character followed by benny such as 7benny or &benny. If you instead wanted to find any user whose name starts with the literal string _benny, you could do:

const users = await prisma.user.findMany({
 where: {
 name: {
 startsWith: '\\_benny', // note that the `_` character is escaped, preceding `\` with `\` when included in a string
 },
 },
})

Sorting​

Use orderBy to sort a list of records or a nested list of records by a particular field or set of fields. For example, the following query returns all User records sorted by role and name, and each user's posts sorted by title:

const usersWithPosts = await prisma.user.findMany({
 orderBy: [
 {
 role: 'desc',
 },
 {
 name: 'desc',
 },
 ],
 include: {
 posts: {
 orderBy: {
 title: 'desc',
 },
 select: {
 title: true,
 },
 },
 },
})

Note: You can also sort lists of nested recordsto retrieve a single record by ID.

Sort by relation​

You can also sort by properties of a relation. For example, the following query sorts all posts by the author's email address:

const posts = await prisma.post.findMany({
 orderBy: {
 author: {
 email: 'asc',
 },
 },
})

Sort by relation aggregate value​

In 2.19.0 and later, you can sort by the count of related records.

For example, the following query sorts users by the number of related posts:

const getActiveUsers = await prisma.user.findMany({
 take: 10,
 orderBy: {
 posts: {
 _count: 'desc',
 },
 },
})

Note: It is not currently possible to return the count of a relation.

Sort by relevance (PostgreSQL and MySQL)​

In 3.5.0+ for PostgreSQL and 3.8.0+ for MySQL, you can sort records by relevance to the query using the _relevance keyword. This uses the relevance ranking functions from full text search features.

This feature is further explain in the PostgreSQL documentation and the MySQL documentation.

Enable order by relevance with the fullTextSearch preview feature:

generator client {
 provider = "prisma-client-js"
 previewFeatures = ["fullTextSearch"]
}

Ordering by relevance can be used either separately from or together with the search filter: _relevance is used to order the list, while search filters the unordered list. For example, the following query uses _relevance to order the list of users by relevance to the search term 'developer' in their bio, and search to filter the list:

const getUsersByRelevance = await prisma.user.findMany({
 take: 10,
 orderBy: {
 _relevance: {
 fields: ['bio'],
 search: 'developer',
 sort: 'asc',
 },
 },
})

Sort with null records first or last​

You can sort the results so that records with null fields appear either first or last.

Example: If updatedAt is an optional field, then the following query sorts posts by updatedAt, with null records at the end:

const posts = await prisma.post.findMany({
 orderBy: {
 updatedAt: { sort: 'asc', nulls: 'last' },
 },
})

Sorting FAQs​

Can I perform case-insensitive sorting?​

Follow issue #841 on GitHub.