PostgreSQL (/ˌpoʊstɡrɛskjuˈɛl/ POHST-gres-kew-EL) also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing
PL/SQL (Procedural Language for SQL) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle
PL/pgSQL (Procedural Language/PostgreSQL) is a procedural programming language supported by the PostgreSQL ORDBMS. It closely resembles Oracle's PL/SQL
Look up PL, pl, or pl. in Wiktionary, the free dictionary. PL, P.L., Pl, or .pl may refer to: Partit Laburista, a Maltese political party Liberal Party