Before diving into the documentation itself, it is useful to understand the major SQL features and enhancements introduced in this release. These additions are thoroughly covered in the official New Features Guide .
Oracle 19c closes the gap between relational databases and NoSQL document stores.
| Feature | Description | |---------|-------------| | | Compare two JSON documents | | SQL/MED (Foreign table support) | Access external data as Oracle tables | | FETCH FIRST with TIES | Better pagination + ties | | ROW LIMITING clause enhancements | OFFSET … ROWS FETCH NEXT … working more intuitively | | Private temporary tables | Session-local temp tables | | Qualified expressions | Constructor for nested collections/records | | Polymorphic table functions (PTF) | Row/column passing between SQL |
A 4.82 MB PDF document covering Oracle 19c overview, database design principles, SQL programming and optimization, stored procedures and triggers, PL/SQL programming (including advanced techniques, error handling), database performance tuning, security and privilege management, and backup and recovery strategies. oracle sql 19c pdf
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Querying schema-flexible configuration settings or payloads inside traditional relational statements. Automatic Indexing
For developers and DBAs, having offline access to documentation is crucial. Oracle provides comprehensive, searchable PDF guides for SQL and PL/SQL. 1. Oracle SQL Language Reference, 19c PDF Before diving into the documentation itself, it is
| Title | Author | Focus | |-------|--------|-------| | Oracle SQL 19c: The Complete Guide | Jason Price | All SQL features, queries, DML, DDL | | SQL for Oracle 19c | Ben Brumm | Beginner-friendly, practice exercises | | Oracle Database 12c/19c SQL | Joan Casteel | Textbook style, used in courses |
Some of the key features of Oracle SQL 19c include:
: A concise guide for the command-line interface used to execute SQL and PL/SQL commands. Oracle Help Center Deep Dives into New Features SQL Plan Management in 19c | Feature | Description | |---------|-------------| | |
Partially. The SQL Language Reference covers embedded PL/SQL blocks in SQL statements (like EXECUTE IMMEDIATE ), but for full PL/SQL (packages, triggers, types), you need the PL/SQL Language Reference PDF .
A long-awaited fix: In previous versions, LISTAGG would duplicate values. Now you can use DISTINCT :
[ SQL Query ] ---> [ Parser ] ---> [ Optimizer ] ---> [ Execution Engine ] ---> [ Data Blocks ] The Oracle Instance and Database