7/10/2023 0 Comments Download graphviz for windowsProgrammers can obtain database metadata using JDBC, but with the raw JDBC API database metadata is returned as result sets, not Java objects. when finding the names and types of tables and columns in the database.when programmatically determining the capabilities of a given RDBMS.in order to dynamically generate SQL statements.Java programmers need to access database metadata SchemaCrawler is also a Java API that makes working with database metadata as easy as working with plain old Java objects. The tutorial works from within any browser with no software or plugins needed. However, you will need to download the templating engine separately, since these are not part of the SchemaCrawler download.Įxplore the SchemaCrawler command-line with a live online tutorial. You can write templates to generate SQL scripts or any other text output. SchemaCrawler is integrated with templating engines, such as Apache Velocity, Thymeleaf, Apache and Mustache. Examples are provided for all of these with the download. A live connection is provided to the script context to allow you to select from or even modify your database. SchemaCrawler has powerful scripting ability, using JavaScript, Groovy, Ruby or Python. SchemaCrawler is capable of creating entity-relationship diagrams in DOT format, which Graphviz can convert into schema diagrams. SchemaCrawler has grep functionality that allows you to search for table and column names using regular expressions. All formats are designed to be easy to diff, or find differences with other schemas that may have been output in the same format. The HTML5 output is a combination of valid XML (that can be manipulated by XML tools or XSLT), and HTML that can be viewed in a browser. SchemaCrawler comes with a set of command-line tools that allow database metadata to be output as plain text, HTML5, HTML5 with embedded diagrams, JavaScript object notation (JSON) or YAML. SchemaCrawler works with any operating system that supports Java SE 8 or better. SchemaCrawler supports almost any database that has a JDBC driver, but for convenience is bundled with drivers for some commonly used RDBMS systems. You can find potential schema design issues with lint. You can execute scripts in any standard scripting language against your database. SchemaCrawler also generates schema diagrams. The output serves for database documentation, and is designed to be diff-ed against other database schemas. You can search for database schema objects using regular expressions, and output the schema and data in a readable text format. SchemaCrawler has a good mix of useful features for data governance. SchemaCrawler is a free database schema discovery and comprehension tool.
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