Tips for updating multiple fields in Prisma ORM

Question

Tips for updating multiple fields in Prisma ORM

Is there a way to upsert multiple fields in Prisma ORM using just one query?

I'm looking for a solution that allows me to upsert all fields at once, without having to do it individually. Is this possible?

javascript sql node.js prisma prisma2

Answer 1

Answer №1

At this time, Prisma does not support the upsertMany method. However, you can achieve a similar result by combining createMany, updateMany, and deleteMany operations. For handling large amounts of data efficiently, consider following this approach:

prisma.$transaction([
  prisma.posts.deleteMany({ where: { userId: 1 } }),
  prisma.posts.createMany({
    { id: 1, title: 'first',  userId: 1 },
    { id: 2, title: 'second', userId: 1 },
    { id: 3, title: 'third',  userId: 1 },
  }),
]);

This involves deleting existing records and then recreating them within a transaction for optimal performance.

Answer 2

At this time, Prisma does not support the upsertMany method. However, you can achieve a similar result by combining createMany, updateMany, and deleteMany operations. For handling large amounts of data efficiently, consider following this approach:

prisma.$transaction([
  prisma.posts.deleteMany({ where: { userId: 1 } }),
  prisma.posts.createMany({
    { id: 1, title: 'first',  userId: 1 },
    { id: 2, title: 'second', userId: 1 },
    { id: 3, title: 'third',  userId: 1 },
  }),
]);

This involves deleting existing records and then recreating them within a transaction for optimal performance.

Answer 3

Answer №2

To prevent the insertion of duplicate records in a database, Prisma offers the option to include a boolean parameter called "skipDuplicates" within the createMany function call. More information can be found at https://www.prisma.io/docs/reference/api-reference/prisma-client-reference#createmany

This feature ensures that records with unique fields or existing ID fields are not inserted again. It is specifically designed for databases that support ON CONFLICT DO NOTHING.

Answer 4

To prevent the insertion of duplicate records in a database, Prisma offers the option to include a boolean parameter called "skipDuplicates" within the createMany function call. More information can be found at https://www.prisma.io/docs/reference/api-reference/prisma-client-reference#createmany

This feature ensures that records with unique fields or existing ID fields are not inserted again. It is specifically designed for databases that support ON CONFLICT DO NOTHING.

Answer 5

Answer №3

Attempting to use deleteMany followed by createMany may prove ineffective due to relational constraints when deleting records. In such a scenario, one of the top solutions may not be suitable for your situation.

Exploring Alternatives

While there is an option like updateMany, it does not facilitate updates in the desired manner as it can only update multiple records with the same value. Therefore, updating records individually is necessary.

It would have been convenient if createMany with the skipDuplicates flag could return the newly created records. This way, the variance between the returned records could be identified and subsequent updates could be made accordingly.

Strategic Approach

Search for Multiple Records
Update Multiple Records
Create Multiple Records
Optional: Re-Search Multiple Records if outcome retrieval is required

Illustrative Example

Consider a hypothetical case where there is a unique constraint on the merchant's name within a merchants table. Leveraging this constraint eliminates the need for an ID, allowing for assumption-based updates on whether the record exists or not.

Although not ideal, the primary advantage here lies in the utilization of createMany. Utilizing Prisma's upsert might be more efficient for a small number of records, whereas this method could be preferable for handling a large volume of data.

function async upsertMerchant(merchants: Merchant[]) {
  const merchantNames = merchants.map((merchant) => merchant.name)

  const existingMerchants = await prisma.findMany({
    where: {
      name: {
        in: merchantNames,
      },
    },
  })

  // For quick reference
  const existingMerchantNames = new Set(existingMerchants.map((merchant) => merchant.name))

  // Alternatively, this section could utilize a reduce method.
  // However, I opted for clarity and comprehensibility.
  const merchantsToCreate: Merchant[] = []

  merchants.forEach((merchant) => {
    if (existingMerchantNames.has(merchant.name)) {
      await prisma.merchant.update({
        where: {
          name: merchant.name,
        },
        data: merchant,
      })
    } else {
      merchantsToCreate.push(merchant)
    }
  })

  await prisma.merchant.createMany({
    data: merchantsToCreate,
    skipDuplicates: true, // Although optional, duplicates should ideally be avoided unless concurrent code races occur.
  })

  // Optional in case all merchants need to be retrieved
  // This function returns all newly created and previously existing records along with updated details.
  return Prisma.merchants.findMany({
    where: {
      name: {
        in: merchantNames,
      },
    },
  })
}

In Summary

For scenarios involving a significant number of records, leveraging createMany could enhance performance. Otherwise, individual record updates remain the primary approach. If viable, utilizing deleteMany offers a quicker alternative, but may pose challenges in cases involving relationships.

For smaller datasets, iterating through records and employing Prisma's upsert functionality might offer a simpler and more readable solution.

Answer 6

Attempting to use deleteMany followed by createMany may prove ineffective due to relational constraints when deleting records. In such a scenario, one of the top solutions may not be suitable for your situation.

Exploring Alternatives

While there is an option like updateMany, it does not facilitate updates in the desired manner as it can only update multiple records with the same value. Therefore, updating records individually is necessary.

It would have been convenient if createMany with the skipDuplicates flag could return the newly created records. This way, the variance between the returned records could be identified and subsequent updates could be made accordingly.

Strategic Approach

Search for Multiple Records
Update Multiple Records
Create Multiple Records
Optional: Re-Search Multiple Records if outcome retrieval is required

Illustrative Example

Consider a hypothetical case where there is a unique constraint on the merchant's name within a merchants table. Leveraging this constraint eliminates the need for an ID, allowing for assumption-based updates on whether the record exists or not.

Although not ideal, the primary advantage here lies in the utilization of createMany. Utilizing Prisma's upsert might be more efficient for a small number of records, whereas this method could be preferable for handling a large volume of data.

function async upsertMerchant(merchants: Merchant[]) {
  const merchantNames = merchants.map((merchant) => merchant.name)

  const existingMerchants = await prisma.findMany({
    where: {
      name: {
        in: merchantNames,
      },
    },
  })

  // For quick reference
  const existingMerchantNames = new Set(existingMerchants.map((merchant) => merchant.name))

  // Alternatively, this section could utilize a reduce method.
  // However, I opted for clarity and comprehensibility.
  const merchantsToCreate: Merchant[] = []

  merchants.forEach((merchant) => {
    if (existingMerchantNames.has(merchant.name)) {
      await prisma.merchant.update({
        where: {
          name: merchant.name,
        },
        data: merchant,
      })
    } else {
      merchantsToCreate.push(merchant)
    }
  })

  await prisma.merchant.createMany({
    data: merchantsToCreate,
    skipDuplicates: true, // Although optional, duplicates should ideally be avoided unless concurrent code races occur.
  })

  // Optional in case all merchants need to be retrieved
  // This function returns all newly created and previously existing records along with updated details.
  return Prisma.merchants.findMany({
    where: {
      name: {
        in: merchantNames,
      },
    },
  })
}

In Summary

For scenarios involving a significant number of records, leveraging createMany could enhance performance. Otherwise, individual record updates remain the primary approach. If viable, utilizing deleteMany offers a quicker alternative, but may pose challenges in cases involving relationships.

For smaller datasets, iterating through records and employing Prisma's upsert functionality might offer a simpler and more readable solution.

Tips for updating multiple fields in Prisma ORM

Answer №1

Answer №2

Answer №3

Exploring Alternatives

Strategic Approach

Illustrative Example

In Summary

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