docs: formula record id

packages/noco-docs/docs/070.fields/040.field-types/060.formula/060.generic-functions.md

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+---
+title: 'Generic Functions'
+description: 'This article explains system functions & miscellaneous functions that can be used in formula fields.'
+tags: ['Fields', 'Field types', 'Formula']
+keywords: ['Fields', 'Field types', 'Formula', 'Create formula field', 'System functions', 'Miscellaneous functions']
+---
+
+# System Functions
+
+## RECORD_ID
+
+The `RECORD_ID` function returns the unique identifier of the record.
+
+#### Syntax
+```plaintext
+RECORD_ID()
+```
+
+#### Sample
+```plaintext
+RECORD_ID() => 1
+```
+
+---