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15d4ee1590
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@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
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For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
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For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
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_1430 TILs and counting..._
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_1429 TILs and counting..._
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---
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---
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@@ -824,7 +824,6 @@ _1430 TILs and counting..._
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- [Apply Separate Formatting With A Blank Line](prisma/apply-separate-formatting-with-a-blank-line.md)
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- [Apply Separate Formatting With A Blank Line](prisma/apply-separate-formatting-with-a-blank-line.md)
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- [Batch Insert Records With createMany](prisma/batch-insert-records-with-create-many.md)
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- [Batch Insert Records With createMany](prisma/batch-insert-records-with-create-many.md)
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- [Check If Database And Schema Are Not In Sync](prisma/check-if-database-and-schema-are-not-in-sync.md)
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- [Configure Client To Log SQL Queries](prisma/configure-client-to-log-sql-queries.md)
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- [Configure Client To Log SQL Queries](prisma/configure-client-to-log-sql-queries.md)
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- [Execute A Raw SQL Query](prisma/execute-a-raw-sql-query.md)
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- [Execute A Raw SQL Query](prisma/execute-a-raw-sql-query.md)
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- [Grab A Limited Set Of Records](prisma/grab-a-limited-set-of-records.md)
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- [Grab A Limited Set Of Records](prisma/grab-a-limited-set-of-records.md)
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@@ -1,37 +0,0 @@
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# Check If Database And Schema Are Not In Sync
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The [`prisma migrate
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diff`](https://www.prisma.io/docs/orm/reference/prisma-cli-reference#migrate-diff)
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command is a versatile tool that can be used to check if there is a difference
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between two sources. In this case, we want to check if our database is in sync
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with the `schema.prisma` file for our project.
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If we have made changes to the schema file, but haven't yet migrated or pushed
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those changes to our local database, then we want to be notified of that
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mismatch.
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We'll point at the schema file with `--to-schema-datamodel` and at our local
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database with `--from-url`.
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```bash
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❯ npx prisma migrate diff \
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--to-schema-datamodel ./prisma/schema.prisma \
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--from-url mysql://root@localhost:3309/kcd-products
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[*] Changed the `User` table
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[+] Added column `metadata`
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```
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In the case where there is a different, we see an output summary of the diff.
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Let's say we've applied our changes (`prisma db push`) to our local database.
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If we now run that same command again, we can see that no difference is
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detected and our database is in sync with our schema.
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```bash
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❯ npx prisma migrate diff \
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--to-schema-datamodel ./prisma/schema.prisma \
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--from-url mysql://root@localhost:3309/kcd-products
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No difference detected.
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```
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