SQL*Loader之CASE8

CASE8

1. SQL脚本

[oracle@node3 ulcase]$ cat ulcase8.sql

set termout off

rem host write sys$output "Building case 8 demonstration tables.  Please wait"

drop table lineitem;

create table lineitem
(l_orderkey     number,
l_partkey       number,
l_suppkey       number,
l_linenumber    number,
l_quantity      number,
l_extendedprice number,
l_discount      number,
l_tax           number,
l_returnflag    char,
l_linestatus    char,
l_shipdate      date,
l_commitdate    date,
l_receiptdate   date,
l_shipinstruct  char(17),
l_shipmode      char(7),
l_comment       char(43))
partition by range (l_shipdate)
(
partition ship_q1 values less than (TO_DATE('01-APR-1996', 'DD-MON-YYYY')),
partition ship_q2 values less than (TO_DATE('01-JUL-1996', 'DD-MON-YYYY')),
partition ship_q3 values less than (TO_DATE('01-OCT-1996', 'DD-MON-YYYY')),
partition ship_q4 values less than (TO_DATE('01-JAN-1997', 'DD-MON-YYYY'))
);

exit                              

2. 控制文件

[oracle@node3 ulcase]$ cat ulcase8.ctl

-- Copyright (c) 1991, 2004 Oracle.  All rights reserved.
-- NAME
-- ulcase8.ctl - SQL*Loader Case Study 8: Loading Partitioned Tables
--
-- DESCRIPTION
-- This case study demonstrates the following:
-- Partitioning of data.
--
-- Explicitly defined field positions and datatypes.
--
-- Loading data using the fixed-record-length option.
--
-- TO RUN THIS CASE STUDY:
-- 1. Before executing this control file, log in to SQL*Plus as
--    scott/tiger. Enter @ulcase8 to execute the SQL script for
--    this case study. This prepares and populates tables and
--    then returns you to the system prompt.
--
-- 2. At the system prompt, invoke the case study as follows:
-- sqlldr USERID=scott/tiger CONTROL=ulcase8.ctl LOG=ulcase8.log
--
-- NOTES ABOUT THIS CONTROL FILE
-- This control file loads the lineitem table with fixed-length
-- records, partitioning the data according to shipment date.
--
-- The INFILE clause specifies that each record in the datafile is
-- of fixed length (129 bytes in this example).
--
-- The PARTITION clause identifies the column name and location of the
-- data in the datafile to be loaded into each column.
--
LOAD DATA
  INFILE 'ulcase8.dat' "fix 129"
BADFILE 'ulcase8.bad'
TRUNCATE
INTO TABLE lineitem
PARTITION (ship_q1)
  (l_orderkey      position    (1:6) char,
   l_partkey       position   (7:11) char,
   l_suppkey       position  (12:15) char,
   l_linenumber    position  (16:16) char,
   l_quantity      position  (17:18) char,
   l_extendedprice position  (19:26) char,
   l_discount      position  (27:29) char,
   l_tax           position  (30:32) char,
   l_returnflag    position  (33:33) char,
   l_linestatus    position  (34:34) char,
   l_shipdate      position  (35:43) char,
   l_commitdate    position  (44:52) char,
   l_receiptdate   position  (53:61) char,
   l_shipinstruct  position  (62:78) char,
   l_shipmode      position  (79:85) char,
   l_comment       position (86:128) char)

3. 数据文件

[oracle@node3 ulcase]$ cat ulcase8.dat

     1 151978511724386.60 7.04.0NO09-SEP-6412-FEB-9622-MAR-96DELIVER IN PERSONTRUCK  iPBw4mMm7w7kQ zNPL i261OPP
     1 2731 73223658958.28.09.06NO12-FEB-9628-FEB-9620-APR-96TAKE BACK RETURN MAIL   5wM04SNyl0AnghCP2nx lAi
     1 3370 3713 810210.96 .1.02NO29-MAR-9605-MAR-9631-JAN-96TAKE BACK RETURN REG AIRSQC2C 5PNCy4mM
     1 5214 46542831197.88.09.06NO21-APR-9630-MAR-9616-MAY-96NONE             AIR    Om0L65CSAwSj5k6k
     1 6564  6763246897.92.07.02NO30-MAY-9607-FEB-9603-FEB-96DELIVER IN PERSONMAIL   CB0SnyOL PQ32B70wB75k 6Aw10m0wh
     1 7403 160524 31329.6 .1.04NO30-JUN-9614-MAR-9601 APR-96NONE             FOB    C2gOQj OB6RLk1BS15 igN
     2 8819 82012441659.44  0.08NO05-AUG-9609-FEB-9711-MAR-97COLLECT COD      AIR    O52M70MRgRNnmm476mNm
     3 9451 721230 41113.5.05.01AF05-SEP-9629-DEC-9318-FEB-94TAKE BACK RETURN FOB    6wQnO0Llg6y
     3 9717  1834440788.44.07.03RF09-NOV-9623-DEC-9315-FEB-94TAKE BACK RETURN SHIP   LhiA7wygz0k4g4zRhMLBAM
     3 9844 1955 6 8066.64.04.01RF28-DEC-9615-DEC-9314-FEB-94TAKE BACK RETURN REG AIR6nmBmjQkgiCyzCQBkxPPOx5j4hB 0lRywgniP1297  

执行后结果：

[oracle@node3 ulcase]$ sqlplus scott/tiger @ulcase8.sql

[oracle@node3 ulcase]$ sqlldr userid=scott/tiger control=ulcase8.ctl

SQL> select L_ORDERKEY,L_PARTKEY,L_SHIPDATE from lineitem;

L_ORDERKEY L_PARTKEY  L_SHIPDAT
---------- ---------- ---------
1          1519       09-SEP-64
1          2731       12-FEB-96
1          3370       29-MAR-96

--因为列数太多，在这里我们只选取三列，可见只有三条记录被插入。

查看日志文件：

[oracle@node3 ulcase]$ cat ulcase8.log

SQL*Loader: Release 11.2.0.1.0 - Production on Fri Sep 19 03:30:54 2014

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

Control File:   ulcase8.ctl
Data File:      ulcase8.dat
  File processing option string: "fix 129"
  Bad File:     ulcase8.bad
  Discard File:  none specified

 (Allow all discards)

Number to load: ALL
Number to skip: 0
Errors allowed: 50
Bind array:     64 rows, maximum of 256000 bytes
Continuation:    none specified
Path used:      Conventional

Table LINEITEM, partition SHIP_Q1, loaded from every logical record.
Insert option in effect for this partition: TRUNCATE

   Column Name                  Position   Len  Term Encl Datatype
------------------------------ ---------- ----- ---- ---- ---------------------
L_ORDERKEY                            1:6     6           CHARACTER
L_PARTKEY                            7:11     5           CHARACTER
L_SUPPKEY                           12:15     4           CHARACTER
L_LINENUMBER                        16:16     1           CHARACTER
L_QUANTITY                          17:18     2           CHARACTER
L_EXTENDEDPRICE                     19:26     8           CHARACTER
L_DISCOUNT                          27:29     3           CHARACTER
L_TAX                               30:32     3           CHARACTER
L_RETURNFLAG                        33:33     1           CHARACTER
L_LINESTATUS                        34:34     1           CHARACTER
L_SHIPDATE                          35:43     9           CHARACTER
L_COMMITDATE                        44:52     9           CHARACTER
L_RECEIPTDATE                       53:61     9           CHARACTER
L_SHIPINSTRUCT                      62:78    17           CHARACTER
L_SHIPMODE                          79:85     7           CHARACTER
L_COMMENT                          86:128    43           CHARACTER            

Record 4: Rejected - Error on table LINEITEM, partition SHIP_Q1.
ORA-14401: inserted partition key is outside specified partition

Record 5: Rejected - Error on table LINEITEM, partition SHIP_Q1.
ORA-14401: inserted partition key is outside specified partition

Record 6: Rejected - Error on table LINEITEM, partition SHIP_Q1.
ORA-14401: inserted partition key is outside specified partition

Record 7: Rejected - Error on table LINEITEM, partition SHIP_Q1.
ORA-14401: inserted partition key is outside specified partition

Record 8: Rejected - Error on table LINEITEM, partition SHIP_Q1.
ORA-14401: inserted partition key is outside specified partition

Record 9: Rejected - Error on table LINEITEM, partition SHIP_Q1.
ORA-14401: inserted partition key is outside specified partition

Record 10: Rejected - Error on table LINEITEM, partition SHIP_Q1.
ORA-14401: inserted partition key is outside specified partition

Table LINEITEM, partition SHIP_Q1:
  3 Rows successfully loaded.
  7 Rows not loaded due to data errors.
  0 Rows not loaded because all WHEN clauses were failed.
  0 Rows not loaded because all fields were null.

Space allocated for bind array:                  11008 bytes(64 rows)
Read   buffer bytes: 1048576

Total logical records skipped:          0
Total logical records read:            10
Total logical records rejected:         7
Total logical records discarded:        0

Run began on Fri Sep 19 03:30:54 2014
Run ended on Fri Sep 19 03:30:54 2014

Elapsed time was:     00:00:00.31
CPU time was:         00:00:00.03

总结： 在本例中

1> PARTITION (ship_q1)子句表明只有符合这个分区范围内的值才能被插入，即l_shipdate小于01-APR-1996的数据可被插入。