A JDBC driver is a Java library file (.jar) that enables Java applications to communicate with a database. The JDBC is a standard interface implemented by each database with a specific driver. Drivers are typically distributed by the database vendor or as open-source projects.
The connection parameters including the database location, database name and connection method are passed to the driver using the JDBC URL. The JDBC URL is a text starting with 'jdbc:...' which combines the hostname, port, database name, and any driver-specific parameters. The exact syntax can be different for each JDBC driver.
Greenplum is an open-source massively parallel processing (MPP) data warehouse based on PostgreSQL, designed for high-performance analytics on large datasets. It distributes data and query processing across multiple segments, enabling parallel execution of complex analytical queries. Greenplum is used in enterprise data warehousing, machine learning pipelines, and large-scale ETL workloads.
Greenplum is a PostgreSQL-based MPP database. Connect to the Greenplum Master node on port 5432 using the standard PostgreSQL JDBC driver. Greenplum extensions and distribution keys are visible through standard PostgreSQL metadata queries.
DbSchema connects to Greenplum using the standard PostgreSQL JDBC driver, rendering the MPP schema including distribution policies, partition tables, and external tables in the visual schema designer, and enabling analytical SQL query authoring against the Greenplum cluster.
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DbSchema is free. Download the installer for Windows, macOS, or Linux and start DbSchema. No signup required.
Reverse engineer an existing database or open a sample model to explore tables, relations, and indexes visually.
Edit your schema, generate interactive documentation, and roll out reviewed changes across environments.
Once the JDBC driver is configured, DbSchema connects to your Greenplum database and gives you a full graphical workbench — no command-line required. Available as a free Community Edition and a full-featured PRO Edition. No registration needed to get started.
Reverse-engineer your Greenplum schema into a drag-and-drop ER diagram. Arrange tables visually, add new columns, define foreign keys, and let DbSchema generate the DDL — all without writing SQL by hand.
Compose Greenplum queries by clicking on tables and columns — no SQL knowledge required. Add joins, filters, groupings, and aggregations through a point-and-click interface, then copy the generated SQL or run it directly against the live database.
Browse Greenplum table data and follow foreign key relationships across tables in a single view. Edit cells inline, filter rows, and paginate through large datasets — all without leaving the explorer.
Compare your Greenplum schema across development, staging, and production environments. DbSchema generates the exact ALTER statements needed to close the gap and lets you review every change before executing — reducing the risk of unintended schema drift.
Write and execute Greenplum queries in the integrated SQL editor with schema-aware autocomplete, syntax highlighting, and instant result display. Run scripts, inspect execution plans, and export results to CSV or JSON from a single interface.
Generate a static HTML site documenting every table, column, type, index, and relationship in your Greenplum schema. Share it with your team or embed it in your project wiki — no extra tooling required.
For the full feature list and edition comparison, visit the DbSchema PRO Edition page.
ER diagrams, Git-based versioning, random data generator, and HTML schema docs.