NetBeans DataWrangler: Query, Convert, and Edit Data Analytics Files
Table of Contents File supportQuery, convert, copyThe SQL editorConnections and extensionsDesignInstallationApache NetBeans DataWrangler brings the file formats of data analytics into Apache NetBeans 31: CSV, Apache Parquet, JSON and Excel, the formats exchanged with pandas, Spark, R, dbt, Power BI ...
-
Running DuckDB’s JDBC Driver in a GraalVM Native Image
Table of Contents The Hello WorldWhat the Agent RecordedWhy It Failed BeforeA Larger ExampleWhere This Leaves the IssueDuckDB is an in-process analytical database. You add one JAR to a Java project and get a SQL engine that reads CSV, Parquet, …
-
DuckDB in Spring Batch: Replace In-Memory Java Loops with One SQL Statement
Table of Contents The setupThe resultsWhy the differenceWhen to use itSpring Batch jobs usually follow the same pattern: an ItemReader streams rows, an ItemProcessor transforms each one, and an ItemWriter writes them out, chunk by chunk. A chunk-oriented step wires …
-
Embedding DuckDB in a Maven App (and Using It for Things That Aren’t Databases)
Table of Contents SetupQuerying a file on the internet with SQLQuerying a file on the internet with SQLWhere this is actually usefulSumming upDuckDB is described as “SQLite for analytics,” which is true: it’s an in-process database engine that runs inside …
-
Foojay Podcast #75: JCON Report, Part 4 – Tips and Tricks for Java Devs
Table of Contents VideoPodcast AppsContentThis is the final part of the JCON 2025 interviews with a lot of tips and tricks! In the three previous podcasts, we featured interviews from the JCON conference on “Being a better Java developer,” “Evolutions …
