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, queries, built-in functions, and the Table API.

Apache Flink® SQL is based on Apache Calcite, which implements the SQL standard.

Tip

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Data types

Flink SQL has a rich set of native data types that you can use in SQL statements and queries.

Data Types

Serialize and deserialize data

Data Type Mappings

Reserved keywords

Some string combinations are reserved as keywords for future use.

Flink SQL Reserved 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.

You can find the regions where Confluent Cloud for Apache Flink is available by using the Confluent CLI or the Flink REST API. When you create a compute pool in the Confluent Cloud Console, the Region dropdown lists the available regions.