类 org.apache.hadoop.mapreduce.lib.db.DBRecordReader
的使用

使用DBRecordReader的程序包

程序包	说明
org.apache.hadoop.mapreduce.lib.db

org.apache.hadoop.mapreduce.lib.db中DBRecordReader的使用

org.apache.hadoop.mapreduce.lib.db中DBRecordReader的子类

限定符和类型	类和说明
class	DataDrivenDBRecordReader<T extends DBWritable> A RecordReader that reads records from a SQL table, using data-driven WHERE clause splits.
class	MySQLDataDrivenDBRecordReader<T extends DBWritable> A RecordReader that reads records from a MySQL table via DataDrivenDBRecordReader
class	MySQLDBRecordReader<T extends DBWritable> A RecordReader that reads records from a MySQL table.
class	OracleDataDrivenDBRecordReader<T extends DBWritable> A RecordReader that reads records from a Oracle table via DataDrivenDBRecordReader
class	OracleDBRecordReader<T extends DBWritable> A RecordReader that reads records from an Oracle SQL table.