# Flink SQL and Table API Reference in Confluent Cloud for Apache Flink Confluent Cloud for Apache Flink® supports the SQL standard through Apache Flink® SQL and the programmatic Flink Table API. This reference documents [Data Definition Language (DDL) statements](../concepts/statements.md#flink-sql-statements), [queries](queries/overview.md#flink-sql-queries), [built-in functions](functions/overview.md#flink-sql-functions-overview), and the [Table API](table-api.md#flink-table-api). Apache Flink® SQL is based on [Apache Calcite](https://calcite.apache.org/), which implements the SQL standard. ## Data types Flink SQL has a rich set of native data types that you can use in SQL statements and queries. - [Data Types](datatypes.md#flink-sql-datatypes) ## Serialize and deserialize data - [Data Type Mappings](serialization.md#flink-sql-serialization) ## Reserved keywords Some string combinations are reserved as keywords for future use. - [Flink SQL Reserved Keywords](keywords.md#flink-sql-keywords) ## Supported regions Confluent Cloud for Apache Flink is available on AWS, Azure, and Google Cloud. For the full list of supported regions and feature availability, see [Confluent Cloud Regions and Availability by Cloud Provider](../../get-started/regions.md#providers-regions). You can find the regions where Confluent Cloud for Apache Flink is available by using the [Confluent CLI](flink-sql-cli.md#flink-cli-manage-regions) or the [Flink REST API](../operate-and-deploy/flink-rest-api.md#flink-rest-api-list-regions). When you [create a compute pool](../operate-and-deploy/create-compute-pool.md#flink-sql-manage-compute-pool-create) in the Confluent Cloud Console, the **Region** dropdown lists the available regions. ## Related content - [Stream Processing Concepts](../concepts/overview.md#flink-sql-stream-processing-concepts) - [Time and Watermarks](../concepts/timely-stream-processing.md#flink-sql-timely-stream-processing) #### NOTE This website includes content developed at the [Apache Software Foundation](https://www.apache.org/) under the terms of the [Apache License v2](https://www.apache.org/licenses/LICENSE-2.0.html).