Groovy SQL with 10+ examples. Connect to H2, MySQL, PostgreSQL using groovy.sql.Sql, run queries with eachRow, rows(), firstRow(). “The best tool for managing data is a well-written query.” C.J. Date, Database Relational Model Last Updated: March 2026 | Tested on: Groovy 5.x, Java 17+ | Difficulty: Intermediate | Reading Time: 18 minutes If you have ever used JDBC in Java, you know how painful it can be. Open a connection, create a statement, execute a query, iterate through a ResultSet, ... Read More