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GDUL产品特性

C++编写，高性能

GDUL使用C++语言编写，比使用Java编写的类DUL工具速度要快得多。

以下为导出800万行普通表的测试，导出格式为expdp，耗时20多秒。


GDUL> desc andy.t_big_table
object_id: 77494, dataobj#: 77494, cluster tab#: 0
segment header: (ts#: 4, rfile#: 4, block#: 14074))
Name Null? Type
-------------------- --------------- --------------
OWNER VARCHAR2(30)
OBJECT_NAME VARCHAR2(128)
SUBOBJECT_NAME VARCHAR2(30)
OBJECT_ID NUMBER
DATA_OBJECT_ID NUMBER
OBJECT_TYPE VARCHAR2(19)
CREATED DATE
LAST_DDL_TIME DATE
TIMESTAMP VARCHAR2(19)
STATUS VARCHAR2(7)
TEMPORARY VARCHAR2(1)
GENERATED VARCHAR2(1)
SECONDARY VARCHAR2(1)
NAMESPACE NUMBER
EDITION_NAME VARCHAR2(30)

GDUL> unload table andy.t_big_table
2016-12-06 13:20:43 unloading table "ANDY"."T_BIG_TABLE"...
2016-12-06 13:21:05 unloaded 8099838 rows