Join David Gassner for an in-depth discussion in this video Getting the DatabaseMetaData object, part of Java Database Integration with JDBC.
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In most database application environments, you already know the database structure, the…names of the tables, the number, and types of the columns, and so on,…but there are times when you have to discover this information dynamically, and JDBC gives…you that ability through a function called metadata.…The term metadata in the context of databases describes exactly the sort of information,…and you can get the metadata from a database connection quite easily.…I'll do an initial demonstration of this functionality in a project named Table List.…
I'm using a Singleton Connection Manager which I have described how to build in a previous exercise.…I have gotten a reference to my connection, and then within the try catch block, I'm going…to add some data to get a list of tables that's in my database.…Within the try block, I'll first declare an object instantiated as DatabaseMetaData.…As with many other objects in JDBC, you might see more than one version.…Always be sure to choose the version from java.sql for maximum portability.…
Author David Gassner explains how to choose a JDBC driver and connect to one or more databases. He also provides detailed instructions on reading, selecting, and updating data; calling stored procedures; managing data via JavaBean classes or with prepared statements; and working with metadata.
- Importing a MySQL database
- Connecting to databases
- Handling JDBC exceptions
- Looping through result sets
- Limiting the number of fetched rows
- Filtering data with prepared statements
- Calling stored procedures
- Inserting, updating, and deleting rows with prepared statements
- Using a persistent database connection
- Committing and rolling back transactions