数据导入时对外键约束的处理

DUMP文件的某些表可能含有外键，因此对表的导入有顺序要求，可以用以下脚本做一个基本过滤

SQL> select ' alter table '||table_name||' disable constraint '|| constraint_name||';' from user_constraints where

  2  constraint_type='R' union select 'alter table '||uca.table_name||' disable constraint '||uca.constraint_name||';'

  3  from

  4  user_constraints uca,

  5  (select constraint_name

  6  from user_constraints

  7  where constraint_type in ('P','U')

  8  ) tmp

  9  where uca.constraint_type='R'

 10  and tmp.constraint_name=uca.r_constraint_name;

'ALTERTABLE'||TABLE_NAME||'DISABLECONSTRAINT'||CONSTRAINT_NAME||';'

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

 alter table ATTRIBUTE_TRANSFORMATIONS$ disable constraint ATTRIBUTE_TRANSFORMAT

IONS_FK;

 alter table DAM_CONFIG_PARAM$ disable constraint DAM_CONFIG_PARAM_FK1;

 alter table DBFS$_MOUNTS disable constraint SYS_C003356;

 alter table DBFS_SFS$_FS disable constraint SYS_C003398;

 alter table DBFS_SFS$_FSTP disable constraint SYS_C003424;

 alter table DBFS_SFS$_SNAP disable constraint SYS_C003390;

 alter table DBFS_SFS$_VOL disable constraint SYS_C003381;

 alter table DBMS_PARALLEL_EXECUTE_CHUNKS$ disable constraint FK_DBMS_PARALLEL_E

XECUTE_1;

'ALTERTABLE'||TABLE_NAME||'DISABLECONSTRAINT'||CONSTRAINT_NAME||';'

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

 alter table HS$_CLASS_CAPS disable constraint HS$_CLASS_CAPS_FK1;

 alter table HS$_CLASS_CAPS disable constraint HS$_CLASS_CAPS_FK2;

 alter table HS$_CLASS_DD disable constraint HS$_CLASS_DD_FK1;

 alter table HS$_CLASS_DD disable constraint HS$_CLASS_DD_FK2;

 alter table HS$_CLASS_INIT disable constraint HS$_CLASS_INIT_FK1;

 alter table HS$_FDS_INST disable constraint HS$_FDS_INST_FK1;

 alter table HS$_INST_CAPS disable constraint HS$_INST_CAPS_FK1;

 alter table HS$_INST_CAPS disable constraint HS$_INST_CAPS_FK2;

 alter table HS$_INST_DD disable constraint HS$_INST_DD_FK1;

 alter table HS$_INST_DD disable constraint HS$_INST_DD_FK2;

'ALTERTABLE'||TABLE_NAME||'DISABLECONSTRAINT'||CONSTRAINT_NAME||';'

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

 alter table HS$_INST_INIT disable constraint HS$_INST_INIT_FK1;

 alter table HS$_PARALLEL_HISTOGRAM_DATA disable constraint HS_PARALLEL_HISTOGRA

M_DATA_FK;

 alter table HS$_PARALLEL_PARTITION_DATA disable constraint HS_PARALLEL_PARTITIO

N_DATA_FK;

 alter table HS$_PARALLEL_SAMPLE_DATA disable constraint HS_PARALLEL_SAMPLE_DATA

_FK;

 alter table REGISTRY$ disable constraint REGISTRY_PARENT_FK;

'ALTERTABLE'||TABLE_NAME||'DISABLECONSTRAINT'||CONSTRAINT_NAME||';'

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

 alter table REGISTRY$DEPENDENCIES disable constraint DEPENDENCIES_FK;

 alter table REGISTRY$DEPENDENCIES disable constraint DEPENDENCIES_REQ_FK;

 alter table REGISTRY$PROGRESS disable constraint REGISTRY_PROGRESS_FK;

 alter table REGISTRY$SCHEMAS disable constraint REGISTRY_SCHEMA_FK;

 alter table WRM$_SNAPSHOT disable constraint WRM$_SNAPSHOT_FK;

alter table ATTRIBUTE_TRANSFORMATIONS$ disable constraint ATTRIBUTE_TRANSFORMATI

ONS_FK;

alter table DAM_CONFIG_PARAM$ disable constraint DAM_CONFIG_PARAM_FK1;

alter table DBFS$_MOUNTS disable constraint SYS_C003356;

alter table DBFS_SFS$_FS disable constraint SYS_C003398;

'ALTERTABLE'||TABLE_NAME||'DISABLECONSTRAINT'||CONSTRAINT_NAME||';'

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

alter table DBFS_SFS$_FSTP disable constraint SYS_C003424;

alter table DBFS_SFS$_SNAP disable constraint SYS_C003390;

alter table DBFS_SFS$_VOL disable constraint SYS_C003381;

alter table DBMS_PARALLEL_EXECUTE_CHUNKS$ disable constraint FK_DBMS_PARALLEL_EX

ECUTE_1;

alter table HS$_CLASS_CAPS disable constraint HS$_CLASS_CAPS_FK1;

alter table HS$_CLASS_CAPS disable constraint HS$_CLASS_CAPS_FK2;

alter table HS$_CLASS_DD disable constraint HS$_CLASS_DD_FK1;

alter table HS$_CLASS_DD disable constraint HS$_CLASS_DD_FK2;

alter table HS$_CLASS_INIT disable constraint HS$_CLASS_INIT_FK1;

'ALTERTABLE'||TABLE_NAME||'DISABLECONSTRAINT'||CONSTRAINT_NAME||';'

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

alter table HS$_FDS_INST disable constraint HS$_FDS_INST_FK1;

alter table HS$_INST_CAPS disable constraint HS$_INST_CAPS_FK1;

alter table HS$_INST_CAPS disable constraint HS$_INST_CAPS_FK2;

alter table HS$_INST_DD disable constraint HS$_INST_DD_FK1;

alter table HS$_INST_DD disable constraint HS$_INST_DD_FK2;

alter table HS$_INST_INIT disable constraint HS$_INST_INIT_FK1;

alter table HS$_PARALLEL_HISTOGRAM_DATA disable constraint HS_PARALLEL_HISTOGRAM

_DATA_FK;

alter table HS$_PARALLEL_PARTITION_DATA disable constraint HS_PARALLEL_PARTITION

_DATA_FK;

'ALTERTABLE'||TABLE_NAME||'DISABLECONSTRAINT'||CONSTRAINT_NAME||';'

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

alter table HS$_PARALLEL_SAMPLE_DATA disable constraint HS_PARALLEL_SAMPLE_DATA_

FK;

alter table REGISTRY$ disable constraint REGISTRY_PARENT_FK;

alter table REGISTRY$DEPENDENCIES disable constraint DEPENDENCIES_FK;

alter table REGISTRY$DEPENDENCIES disable constraint DEPENDENCIES_REQ_FK;

alter table REGISTRY$PROGRESS disable constraint REGISTRY_PROGRESS_FK;

alter table REGISTRY$SCHEMAS disable constraint REGISTRY_SCHEMA_FK;

alter table WRM$_SNAPSHOT disable constraint WRM$_SNAPSHOT_FK;

56 rows selected.