> For the complete documentation index, see [llms.txt](https://docs.slingdata.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.slingdata.io/concepts.md). # Concepts - [Replications](https://docs.slingdata.io/concepts/replication.md): Multiple streams in a YAML or JSON file. Best way to scale Sling. - [Structure](https://docs.slingdata.io/concepts/replication/structure.md) - [Modes](https://docs.slingdata.io/concepts/replication/modes.md) - [Source Options](https://docs.slingdata.io/concepts/replication/source-options.md) - [Target Options](https://docs.slingdata.io/concepts/replication/target-options.md) - [Columns](https://docs.slingdata.io/concepts/replication/columns.md) - [Transforms](https://docs.slingdata.io/concepts/replication/transforms.md): Using Sling transforms - [Runtime Variables](https://docs.slingdata.io/concepts/replication/runtime-variables.md): Learn how to use Runtime & Environment Variables with Sling - [Tags & Wildcards](https://docs.slingdata.io/concepts/replication/tags-wildcards.md) - [Merge Strategy](https://docs.slingdata.io/concepts/replication/merge-strategy.md) - [Templates](https://docs.slingdata.io/concepts/replication/templates.md) - [Build](https://docs.slingdata.io/concepts/build.md): Build and execute SQL models with dependency resolution. - [Structure](https://docs.slingdata.io/concepts/build/structure.md): Project layout, sling\_build.yml configuration, naming, dev & prod mode, and model selectors. - [Models](https://docs.slingdata.io/concepts/build/models.md): SQL model files, config declaration, materialization modes, template functions, macros, seeds, hooks, and data tests. - [Incremental](https://docs.slingdata.io/concepts/build/incremental.md): Incremental models in sling build — two styles, four drivers, and the range front-matter. - [API Specs](https://docs.slingdata.io/concepts/api-specs.md) - [Structure](https://docs.slingdata.io/concepts/api-specs/structure.md) - [Authentication](https://docs.slingdata.io/concepts/api-specs/authentication.md) - [Requests & Iteration](https://docs.slingdata.io/concepts/api-specs/request.md) - [Response Processing](https://docs.slingdata.io/concepts/api-specs/response.md) - [Advanced Features](https://docs.slingdata.io/concepts/api-specs/advanced.md) - [Queues](https://docs.slingdata.io/concepts/api-specs/queues.md) - [Dynamic Endpoints](https://docs.slingdata.io/concepts/api-specs/dynamic-endpoints.md) - [Testing & Debugging](https://docs.slingdata.io/concepts/api-specs/testing-debug.md) - [Troubleshooting](https://docs.slingdata.io/concepts/api-specs/troubleshooting.md): Common errors and debugging tips for Sling API specifications - [Change Capture (CDC)](https://docs.slingdata.io/concepts/change-capture.md): Continuously replicate row-level changes using Change Data Capture (CDC) - [MySQL / MariaDB](https://docs.slingdata.io/concepts/change-capture/mysql.md): CDC source setup for MySQL and MariaDB - [PostgreSQL](https://docs.slingdata.io/concepts/change-capture/postgres.md): CDC source setup for PostgreSQL - [SQL Server](https://docs.slingdata.io/concepts/change-capture/sql-server.md): CDC source setup for SQL Server - [Oracle](https://docs.slingdata.io/concepts/change-capture/oracle.md): CDC source setup for Oracle - [MongoDB](https://docs.slingdata.io/concepts/change-capture/mongodb.md): CDC source setup for MongoDB - [Hooks / Steps](https://docs.slingdata.io/concepts/hooks.md): Execute custom actions throughout your replication or pipeline - [Check](https://docs.slingdata.io/concepts/hooks/check.md) - [Command](https://docs.slingdata.io/concepts/hooks/command.md) - [Copy](https://docs.slingdata.io/concepts/hooks/copy.md) - [Delete](https://docs.slingdata.io/concepts/hooks/delete.md) - [Group](https://docs.slingdata.io/concepts/hooks/group.md) - [Http](https://docs.slingdata.io/concepts/hooks/http.md) - [Inspect](https://docs.slingdata.io/concepts/hooks/inspect.md) - [List](https://docs.slingdata.io/concepts/hooks/list.md) - [Log](https://docs.slingdata.io/concepts/hooks/log.md) - [Query](https://docs.slingdata.io/concepts/hooks/query.md) - [Replication](https://docs.slingdata.io/concepts/hooks/replication.md) - [Routine](https://docs.slingdata.io/concepts/hooks/routine.md) - [Store](https://docs.slingdata.io/concepts/hooks/store.md) - [Read](https://docs.slingdata.io/concepts/hooks/read.md) - [Write](https://docs.slingdata.io/concepts/hooks/write.md) - [Pipelines](https://docs.slingdata.io/concepts/pipeline.md): Use Pipelines to orchestrate multiple steps in sequence - [Examples](https://docs.slingdata.io/concepts/pipeline/examples.md) - [Data Quality](https://docs.slingdata.io/concepts/data-quality.md): Learn how to use sling for data quality - [Constraints](https://docs.slingdata.io/concepts/data-quality/constraints.md): Learn how to use constraints - [Functions](https://docs.slingdata.io/concepts/functions.md) - [Secrets](https://docs.slingdata.io/concepts/secrets.md): Read connection credentials from 1Password, AWS, Azure, GCP, Vault and other secret managers. --- # Agent Instructions This documentation is published with GitBook. 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