CASE11
1. SQL脚本
[[email protected] ulcase]$ cat ulcase11.sql
set termout off
rem host write sys$output "Building demonstration tables for case study 11. Please wait"
drop table emp;
create table emp
(empno number(4) not null,
ename char(10),
job char(9),
mgr number(4),
hiredate date,
sal number(7,2),
comm number(7,2),
deptno number(2),
projno number,
loadseq number);
exit
2. 控制文件
[[email protected] ulcase]$ cat ulcase11.ctl
-- Copyright (c) 1991, 2004 Oracle. All rights reserved.
-- NAME
-- ulcase11.ctl - SQL*Loader Case Study 11: Load Data in the Unicode
-- Character Set UTF-16
--
-- DESCRIPTION
-- This case study demonstrates the following:
-- Using SQL*Loader to load data in the Unicode character set, UTF16.
--
-- Using SQL*Loader to load data in a fixed-width, multibyte character set.
--
-- Using character-length semantics.
--
-- Using SQL*Loader to load data in little-endian byte order. SQL*Loader
-- checks the byte order of the system on which it is running. If necessary,
-- SQL*Loader swaps the byte order of the data to ensure that any
-- byte-order-dependent data is correctly loaded.
--
-- TO RUN THIS CASE STUDY:
-- 1. Before executing this control file, log in to SQL*Plus as
-- scott/tiger. Enter @ulcase11 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=ulcase11.ctl LOG=ulcase11.log
--
-- NOTES ABOUT THIS CONTROL FILE
--
-- The character set specified with the CHARACTERSET keyword is UTF16.
-- SQL*Loader will convert the data from the UTF16 character set to
-- the database character set. Because UTF16 is specified as the
-- character set, character-length semantics are used for the load.
--
-- BYTEORDER LITTLE tells SQL*Loader that the data in the datafile is
-- in little-endian byte order. SQL*Loader checks the byte order of the
-- system on which it is running to determine if any byte-swapping is
-- necessary. In this example, all the character data in UTF16 is
-- byte-order dependent.
--
-- The TERMINATED BY and OPTIONALLY ENCLOSED BY clauses both specify
-- hexadecimal strings. The X‘002c‘ is the encoding for a comma (,) in
-- UTF-16 big-endian format. The X‘0022‘ is the encoding for a double
-- quotation mark (") in big-endian format. Because the datafile is in
-- little-endian format, SQL*Loader swaps the bytes before checking for
-- a match. If these clauses were specified as character strings instead
-- of hexadecimal strings, SQL*Loader would convert the strings to the
-- datafile character set (UTF16) and byte-swap as needed before checking
-- for a match.
--
-- Because character-length semantics are used, the maximum length for
-- the empno, hiredate, and deptno fields is interpreted as characters,
-- not bytes.
--
-- The TERMINATED BY clause for the deptno field is specified using the
-- character string ":". SQL*Loader converts the string to the datafile
-- character set (UTF16) and byte-swaps as needed before checking for a match.
LOAD DATA
CHARACTERSET utf16
BYTEORDER little
INFILE ulcase11.dat
REPLACE
INTO TABLE EMP
FIELDS TERMINATED BY X‘002c‘ OPTIONALLY ENCLOSED BY X‘0022‘
(empno integer external (5), ename, job, mgr,
hiredate DATE(20) "DD-Month-YYYY",
sal, comm,
deptno CHAR(5) TERMINATED BY ":",
projno,
loadseq SEQUENCE(MAX,1) )
3. 数据文件
数据文件因为是UTF16编码，在文本文件中显示为乱码，在这里不贴出。
执行后结果：
[[email protected] ulcase]$ sqlplus scott/tiger @ulcase11.sql
[[email protected] ulcase]$ sqlldr userid=scott/tiger control=ulcase11.ctl
SQL> select * from emp; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO PROJNO LOADSEQ ----- ------ --------- ----- --------- ------- ----- ------ ------ ---------- 7782 Clark Manager 7839 09-JUN-81 2573 10 101 1 7839 King President 17-NOV-81 5500 10 102 2 7934 Miller Clerk 7782 23-JAN-82 920 10 102 3 7566 Jones Manager 7839 02-APR-81 3124 20 101 4 7499 Allen Salesman 7698 20-FEB-81 1600 300 30 103 5 7654 Martin Salesman 7698 28-SEP-81 1313 1400 30 103 6 7658 Chan Analyst 7566 03-MAY-82 3450 20 101 7 7 rows selected.
查看一下日志文件：
[[email protected] ulcase]$ cat ulcase11.log
SQL*Loader: Release 11.2.0.1.0 - Production on Fri Sep 19 04:13:59 2014
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Control File: ulcase11.ctl
Character Set utf16 specified for all input.
Using character length semantics.
Byteorder little endian specified.
Data File: ulcase11.dat
Bad File: ulcase11.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 EMP, loaded from every logical record.
Insert option in effect for this table: REPLACE
Column Name Position Len Term Encl Datatype
------------------------------ ---------- ----- ---- ---- ---------------------
EMPNO FIRST 10 , O(") CHARACTER
ENAME NEXT * , O(") CHARACTER
JOB NEXT * , O(") CHARACTER
MGR NEXT * , O(") CHARACTER
HIREDATE NEXT 40 , O(") DATE DD-Month-YYYY
SAL NEXT * , O(") CHARACTER
COMM NEXT * , O(") CHARACTER
DEPTNO NEXT 10 : O(") CHARACTER
PROJNO NEXT * , O(") CHARACTER
LOADSEQ SEQUENCE (MAX, 1)
Table EMP:
7 Rows successfully loaded.
0 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: 104768 bytes(64 rows)
Read buffer bytes: 1048576
Total logical records skipped: 0
Total logical records read: 7
Total logical records rejected: 0
Total logical records discarded: 0
Run began on Fri Sep 19 04:13:59 2014
Run ended on Fri Sep 19 04:13:59 2014
Elapsed time was: 00:00:00.41
CPU time was: 00:00:00.24
时间： 2024-11-05 23:38:25