Does your database support this SQL feature?
Compare SQL features, syntax, and gotchas across databases
Reserved Words
Compare reserved words across databases and SQL standard versions.
DML Features
INSERT, UPDATE, DELETE, MERGE, RETURNING, and related write-path behavior.
DDL Features
Schema definition, indexes, views, partitions, generated columns, and ALTER TABLE support.
Indexes
Index types, partial indexes, expression indexes, covering indexes, and online index creation.
Query Features
CTEs, window functions, subqueries, pagination, set operations, and SELECT behavior.
Data Types
Native data types including arrays, UUIDs, enums, intervals, and custom types.
JSON Support
JSON storage, querying, path expressions, aggregation, and indexing.
Constraints & Integrity
CHECK, UNIQUE, FOREIGN KEY, EXCLUDE, deferred constraints, and cascade behavior.
Procedural / Programmability
Stored procedures, functions, triggers, cursors, and dynamic SQL.
Transaction & Concurrency
Isolation levels, savepoints, advisory locks, and concurrency control.
String Functions & Operators
String manipulation, pattern matching, regex, collation, and text search.
Date / Time Features
Date arithmetic, intervals, time zones, formatting, and temporal queries.
Administrative / Other
EXPLAIN, COPY, session settings, extensions, and administrative commands.
Support Levels
Full Supported natively
Partial Native support with limitations
None Not supported
Extension Supported via extension or module
Workaround Common substitute exists