SQuirreL SQL Client is a database administration tool. It uses JDBC to allow users to explore and interact with databases via a JDBC driver. It provides an editor that offers code completion and syntax highlighting for standard SQL.
License: Open Source
PL/SQL Developer is a specialized IDE focused on Oracle databases, offering extensive debugging and PL/SQL development features, while SQuirreL SQL is a more versatile cross-platform SQL client supporting multiple databases but lacks the deep Oracle-specific functionality of PL/SQL Developer. The choice between them depends on whether the focus is on Oracle development or a broader database management approach.