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46 lines
1.6 KiB
Markdown
46 lines
1.6 KiB
Markdown
# Execute A Raw SQL Query
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[Prisma](https://www.prisma.io/) with TypeScript acts as a powerful
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[ORM](https://en.wikipedia.org/wiki/Object%E2%80%93relational_mapping) for
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interacting with your database. However, not every kind of query that you may
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need can be represented with the API generated from your schema. For instance,
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certain tables might be ignored in your `prisma.schema` file. Or you may want
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to hand-craft a query for performance or ergonomics reasons.
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Like any good ORM, Prisma provides an escape hatch for this kind of situation
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with the
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[`$queryRaw`](https://www.prisma.io/docs/concepts/components/prisma-client/raw-database-access#queryraw)
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tag function.
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```typescript
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function getExpiresIn({ email }) {
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const prisma = new PrismaClient()
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const result: Array<object> = await prisma.$queryRaw`
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select
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id,
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code,
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date_trunc('days', expires_at - now())::varchar as expires_in
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from tickets
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where email = ${email}
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`
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// result
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// => [{ id: 123, code: 'abc123', expires_in: '3 days' }]
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return result
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}
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```
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This runs the raw SQL in the template literal against the database. The result
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is returned as an array of objects with key-value pairs for each selected
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value.
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Writing the SQL query myself, in this case, means I can take advantage of
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database (Postgres) specific features (e.g.
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[`date_trunc`](https://www.postgresqltutorial.com/postgresql-date-functions/postgresql-date_trunc/)
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and [interval
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math](https://www.postgresqltutorial.com/postgresql-tutorial/postgresql-interval/)).
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[source](https://www.prisma.io/docs/concepts/components/prisma-client/raw-database-access)
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