GitHub

jsonb_path_query_first.md

page_description Use the PostgreSQL jsonb_path_query_first() function to extract the first JSON value that matches a JSON path from a JSON document. Summary: in this tutorial, you will learn how to ...
GitHub

jsonb_path_query_array.md

page_description Use the PostgreSQL jsonb_path_query_array() function to query JSONB data using a JSON path and return matched elements as a JSON array. Summary: in this tutorial, you will learn how ...
InfoWorld

SQL tutorial: Learn SQL on PostgreSQL

Follow this step-by-step guide to install PostgreSQL, load data, connect to a database, and execute SQL queries including table joins PostgreSQL is an open-source, object-relational (also called ...
GIGAZINE

PostgreSQL 16 is released, with a lot of content such as performance improvements such as up to 300% improvement in COPY performance and enhancement of logical replication ...

'JSON_ARRAY()', 'JSON_ARRAYAGG()', 'IS JSON', etc. have been added. ・Supports various number expressions Underscores can now be used as delimiters, such as ``5_432_000'', as well as expressions other ...