Sqlite count consecutive generator#
Sqlite count consecutive code#

If they try to send more money than they have, the transfer is rejected.Īlice is expected to be able to make 1 transfer for $100 while the other transfer would be rejected. In the example below, Alice and Bob each have $100 in their account. This is a great use-case for interactive transactions because we need to perform logic in-between the writes to check the balance. One of the actions to perform is to send money from one person to another.Īs experienced developers, we want to make sure that during the transfer, Imagine that you are building an online banking system. Any Prisma call invoked on this tx instance is encapsulated into the transaction.

The first argument passed into this async function is an instance of Prisma Client. To use interactive transactions, you can pass an async function into $transaction.

Sqlite count consecutive generator#

If you use interactive transactions in preview from version 2.29.0 to 4.6.1 (included), you need to add the interactiveTransactions preview feature to the generator block of your Prisma schema. The following example demonstrates a nested write with create: Prisma Client ensures that all operations succeed or fail as a whole. For example, creating a user together with a post or updating an order together with an invoice.

Sqlite count consecutive code#

Interactive transactions: pass a function that can contain user code including Prisma Client queries, non-Prisma code and other control flow to be executed in a transaction, using $transaction(fn: (prisma: PrismaClient) => R, options?: object): RĪ nested write lets you perform a single Prisma Client API call with multiple operations that touch multiple related records.Sequential operations: pass an array of Prisma Client queries to be executed sequentially inside a transaction, using $transaction(queries: PrismaPromise): Promise.Batch / bulk transactions: process one or more operations in bulk with updateMany, deleteMany, and createMany.Nested writes: use the Prisma Client API to process multiple operations on one or more related records inside the same transaction.Prisma provides the following options for using transactions:

For information about transactions in general and the reasoning behind Prisma's current solutions, see ✍ Blog: How Prisma supports transactions.For more in-depth examples and use cases, refer to the 📖 transactions guide.This section describes the ways in which the Prisma Client API supports transactions. A database transaction refers to a sequence of read/write operations that are guaranteed to either succeed or fail as a whole.