內網從一臺服務器A導入到另一臺服務器B，38G的數據半個多小時才導了一個表。原來B庫上是有數據的，是不是因為TABLE_EXISTS_ACTION=REPLACE 導致速度慢了？parallel=8也不知道會不會設高了。

SQL> show parameter cpu

NAME? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?TYPE

------------------------------------ ----------------------

VALUE

------------------------------

cpu_count? ?? ?? ?? ?? ?? ?? ?? ?? ? integer

16

parallel_threads_per_cpu? ?? ?? ?? ? integer

2

impdp veasms/cqystest1230 DIRECTORY=DATABAK_DIR NETWORK_LINK=primarydb_link SCHEMAS=veasms EXCLUDE=table:\"in\(\'T_PTZC_ZH_GY\',\'VE_YHB\',\'VE_QXB\',\'WD_ZLSZ\',\'T_PT_LOG\',\'T_PT_LOG_HISTORY\',\'HKGS_LOG_DETAIL\',\'BB_ERROR\',\'BB_ERROR_YJWC\',\'PNR_ERROR\',\'CMD_ERROR\',\'YS_ERROR\',\'KH_KHDDCHANGERECORD\',\'HKGS_LOG_DETAIL\',\'TICKET_CHANGERECORD\',\'KH_KHDD_CZRZ\'\)\"??TABLE_EXISTS_ACTION=REPLACE REMAP_SCHEMA=veasms:veasms parallel=8

Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA

Total estimation using BLOCKS method: 38.68 GB

Processing object type SCHEMA_EXPORT/USER

ORA-31684: Object type USER:"VEASMS" already exists

Processing object type SCHEMA_EXPORT/SYSTEM_GRANT

Processing object type SCHEMA_EXPORT/ROLE_GRANT

Processing object type SCHEMA_EXPORT/DEFAULT_ROLE

Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA

Processing object type SCHEMA_EXPORT/TYPE/TYPE_SPEC

Processing object type SCHEMA_EXPORT/TABLE/TABLE

. . imported "VEASMS"."KH_KHDDCJR"? ?? ?? ?? ?? ?? ?? ? 4071294 rows