SQL*Loader 的使用sqlldr和sqluldr2方法详解

oracle数据导出工具sqluldr2可以将数据以csv、txt等格式导出,适用于大批量数据的导出,导出速度非常快。
导出后可以使用oracle loader工具将数据导入。
简介:
Sqluldr2:专业用于大数据量导出工具之一,效率比普通导出快70%。
Sqlldr:   专业用于导入的工具之一, 在使用时,最好用磁盘写入速度快,网络好,网速快的做。

导出数据:

sqluldr2 user=c##scott/tiger@192.168.1.250/orcl field=0x03 sql=lead_table.sql file=lead_table.dat charset=ZHS16GBK head=no safe=yes fast=yes serial=ture

[oracle@master2 test]$ more lead_table.sql
select CASEID,STEPID,ACTIONDATE from LEAD_TABLE;

生成文件

[oracle@master2 test]$ sqluldr2 user=c##scott/tiger@192.168.1.250/orcl field=0x03 sql=lead_table.sql file=lead_table.dat charset=ZHS16GBK head=no safe=yes fast=yes serial=ture
           0 rows exported at 2019-01-23 11:15:10, size 0 MB.
          10 rows exported at 2019-01-23 11:15:10, size 0 MB.
         output file lead_table.dat closed at 10 rows, size 0 MB.

导入数据:

[oracle@master2 test]$ sqlldr userid=c##scott/tiger@192.168.1.250/orcl data=lead_table.dat control=lead_table.ctl log=lead_table.log skip=0 rows=10000 direct=true streamsize=30720000 date_cache=30720000

SQL*Loader: Release 12.1.0.2.0 - Production on Wed Jan 23 11:50:18 2019

Copyright (c) 1982, 2014, Oracle and/or its affiliates.  All rights reserved.

Path used:      Direct

Load completed - logical record count 1.

Table LEAD_TABLE:
  1 Row successfully loaded.

Check the log file:
  lead_table.log
for more information about the load.
[oracle@master2 test]$ echo $?
0

控制文件:

[oracle@master2 test]$ more lead_table.ctl
LOAD DATA
CHARACTERSET 'ZHS16GBK'
INFILE *
INTO TABLE LEAD_TABLE
FIELDS TERMINATED BY X'03' optionally enclosed by '"'
trailing nullcols
(
CASEID,
STEPID,
ACTIONDATE "to_timestamp(:ACTIONDATE,'YYYY-MM-DD-HH24:MI:SS.FF')"
)
原文地址:https://www.cnblogs.com/hello-wei/p/10308078.html