When comparing Schemaball vs DbSchema, the Slant community recommends DbSchema for most people. In the question“What are the best database design programs?” DbSchema is ranked 4th while Schemaball is ranked 15th. The most important reason people chose DbSchema is:
Includes the possibility to edit tables and data directly in the diagram without writing SQL statements.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports reading schemas from multiple sources
Schemaball can read schemas from multiple sources such as SQL schema dumps, flat files or live databases.

Pro Interesting twist on visual interface
Gives a quick way to grasp an overview on the past/present complexity of the database (or group of tables) undergoing inspection.
Pro Graphical Diagram Editor
Includes the possibility to edit tables and data directly in the diagram without writing SQL statements.
Pro Multi-platform
Runs on Windows, Mac, and Linux.
Pro Virtual Foreign Keys
If the Database schema is missing real foreign keys, it is possible to create virtual ones to be used within the tool.
Pro Generator for Random Data
Includes the possibility to generate random numerical data or fetch random entries from a text file to populate the database.
Pro Generate schema from existing database
Includes the possibility to generate an ER diagram from an existing database.
Pro SQL editor with syntax highlighting
Includes an SQL editor with syntax highlighting and code completion feature.
Pro Graphical Query Editor
Includes a visual query editor capable of using different join types, filters as well as the 'group by' clause.
Cons
Con Visualizations may be hard to get used to
Since schemas are visualized by using stylized "schema balls" it may be hard getting used to them since they are so different from the other, more straightforward options.
