Flink SQL and Table API Reference in Confluent Cloud for Apache Flink¶

This section describes the SQL language support in Confluent Cloud for Apache Flink®, including Data Definition Language (DDL) statements, Data Manipulation Language (DML) statements, built-in functions, and the Table API.

Apache Flink® SQL is based on Apache Calcite, 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

Serialize and deserialize data¶

Data Type Mappings

Reserved keywords¶

Not every SQL feature is implemented in Flink SQL, but some string combinations are reserved as keywords for future use.

Flink SQL Reserved Keywords