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, 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.
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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.
Serialize and deserialize data
Reserved keywords
Some string combinations are reserved as keywords for future use.