Oracle数据迁移到GreenPlum

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Oracle端表结构

SQL> select dbms_metadata.get_ddl('TABLE','TAB_ORA','ZWC') from dual;CREATE TABLE "ZWC"."TAB_ORA"(    "ID" NUMBER,"OWNER" VARCHAR2(30),"NAME" VARCHAR2(128),CONSTRAINT "PK_ID" PRIMARY KEY ("ID")USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICSSTORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)TABLESPACE "USERS"  ENABLE) SEGMENT CREATION IMMEDIATEPCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255NOCOMPRESS LOGGINGSTORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)TABLESPACE "USERS"

使用sqluldr工具导出Oracle表数据

[oracle@ggos ~]$ ./sqluldr zwc/zwc@oraprod query="select * from tab_ora" field=0x7c records=0x0d0x0a charset=gbk file=tab_ora.csv head=off0 rows exported at 2013-12-04 22:08:14, size 0 MB.87975 rows exported at 2013-12-04 22:08:14, size 3 MB.output file tab_ora.csv closed at 87975 rows, size 3 MB.
[oracle@ggos ~]$ more tab_ora.csv 
20|SYS|ICOL$
46|SYS|I_USER1
28|SYS|CON$
15|SYS|UNDO$
29|SYS|C_COBJ#
3|SYS|I_OBJ#
25|SYS|PROXY_ROLE_DATA$
41|SYS|I_IND1
54|SYS|I_CDEF2
40|SYS|I_OBJ5
26|SYS|I_PROXY_ROLE_DATA$_1
17|SYS|FILE$
13|SYS|UET$
9|SYS|I_FILE#_BLOCK#
43|SYS|I_FILE1
51|SYS|I_CON1
38|SYS|I_OBJ3
7|SYS|I_TS#
56|SYS|I_CDEF4
19|SYS|IND$
14|SYS|SEG$
6|SYS|C_TS#
44|SYS|I_FILE2
21|SYS|COL$
.......................................

GP端创建表

[gpadmin@mdw gpseg-1]$ psql -h 192.168.1.23 -d zwcdb -U zhongwc -W
Password for user zhongwc: 
psql (8.2.15)
Type "help" for help.zwcdb=# create table tab_gp(
zwcdb(# id integer primary key,
zwcdb(# owner varchar(200),
zwcdb(# name varchar(200)
zwcdb(# );
NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "tab_gp_pkey" for table "tab_gp"
CREATE TABLE
zwcdb=# \d+ tab_gpTable "public.tab_gp"Column |          Type          | Modifiers | Storage  | Description 
--------+------------------------+-----------+----------+-------------id     | integer                | not null  | plain    | owner  | character varying(200) |           | extended | name   | character varying(200) |           | extended | 
Indexes:"tab_gp_pkey" PRIMARY KEY, btree (id)
Has OIDs: no
Distributed by: (id)

导入数据

zwcdb=# copy tab_gp from '/tmp/tab_ora.csv' delimiter '|';
COPY 87975
zwcdb=# select count(*) from tab_gp;count 
-------87975
(1 row)zwcdb=# select * from tab_gp;id   |       owner        |              name              
-------+--------------------+--------------------------------15 | SYS                | UNDO$29 | SYS                | C_COBJ#3 | SYS                | I_OBJ#25 | SYS                | PROXY_ROLE_DATA$41 | SYS                | I_IND117 | SYS                | FILE$13 | SYS                | UET$9 | SYS                | I_FILE#_BLOCK#43 | SYS                | I_FILE151 | SYS                | I_CON17 | SYS                | I_TS#19 | SYS                | IND$21 | SYS                | COL$45 | SYS                | I_TS135 | SYS                | I_UNDO25 | SYS                | CLU$23 | SYS                | PROXY_DATA$47 | SYS                | I_USER249 | SYS                | I_COL237 | SYS                | I_OBJ239 | SYS                | I_OBJ457 | SYS                | I_CCOL159 | SYS                | BOOTSTRAP$33 | SYS                | I_TAB131 | SYS                | CDEF$53 | SYS                | I_CDEF155 | SYS                | I_CDEF311 | SYS                | I_USER#27 | SYS                | I_PROXY_ROLE_DATA$_261 | SYS                | OBJAUTH$63 | SYS                | I_OBJAUTH265 | SYS                | I_UGROUP167 | SYS                | TSQ$69 | SYS                | VIEW$71 | SYS                | SUPEROBJ$73 | SYS                | I_SUPEROBJ275 | SYS                | I_VIEW177 | SYS                | I_SYN179 | SYS                | I_SEQ181 | SYS                | I_LOB183 | SYS                | COLTYPE$85 | SYS                | I_COLTYPE2

zwcdb=# select gp_segment_id,count(*) from tab_gp group by gp_segment_id;gp_segment_id | count 
---------------+-------1 | 439820 | 43993
(2 rows)

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