# Package io.vertx.ext.jdbc.spi

- Interface Summary
  Interface | Description
  --- | ---
  DataSourceProvider |
  JDBCColumnDescriptorProvider | A shortcut provider that get a column information in the runtime SQL result or parameter metadata
  JDBCDecoder | Represents for JDBC decoder from SQL value to Java value
  JDBCEncoder | Represents for JDBC encoder from Java value to SQL value

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