ddbc.core

DDBC - D DataBase Connector - abstraction layer for RDBMS access, with interface similar to JDBC.

Source file ddbc/core.d.

DDBC library attempts to provide implementation independent interface to different databases.

Set of supported RDBMSs can be extended by writing Drivers for particular DBs. Currently it only includes MySQL Driver which uses patched version of MYSQLN (native D implementation of MySQL connector, written by Steve Teale)

JDBC documentation can be found here: http://docs.oracle.com/javase/1.5.0/docs/api/java/sql/package-summary.html

Limitations of current version: readonly unidirectional resultset, completely fetched into memory.

Its primary objects are:

• Driver:
  • Implements interface to particular RDBMS, used to create connections
• Connection:
  • Connection to the server, and querying and setting of server parameters.
• Statement: Handling of general SQL requests/queries/commands, with principal methods:
  • executeUpdate() - run query which doesn't return result set.
  • executeQuery() - execute query which returns ResultSet interface to access rows of result.
• PreparedStatement: Handling of general SQL requests/queries/commands which having additional parameters, with principal methods:
  • executeUpdate() - run query which doesn't return result set.
  • executeQuery() - execute query which returns ResultSet interface to access rows of result.
  • setXXX() - setter methods to bind parameters.
• ResultSet:
  • Get result of query row by row, accessing individual fields.

You can find usage examples in unittest{} sections.