Oracle database sql loader 导入数据

矫情吗；* 2022-05-30 09:51 197阅读 0赞

## sql loader 导入数据 ##

1、模拟生成数据源

SQL> select empno||','||ename||','||job||','||mgr||','||hiredate||','||sal||','||comm||','||deptno from scott.emp; 
    
    
    EMPNO||','||ENAME||','||JOB||','||MGR||','||HIREDATE||','||SAL||','||COMM||','||DEPTNO
    -------------------------------------------------------------------------------------------
    7369,SMITH,CLERK,7902,1980-12-17 00:00:00,800,,20
    7499,ALLEN,SALESMAN,7698,1981-02-20 00:00:00,1600,300,30
    7521,WARD,SALESMAN,7698,1981-02-22 00:00:00,1250,500,30
    7566,JONES,MANAGER,7839,1981-04-02 00:00:00,2975,,20
    7654,MARTIN,SALESMAN,7698,1981-09-28 00:00:00,1250,1400,30
    7698,BLAKE,MANAGER,7839,1981-05-01 00:00:00,2850,,30
    7782,CLARK,MANAGER,7839,1981-06-09 00:00:00,2450,,10
    7788,SCOTT,ANALYST,7566,1987-04-19 00:00:00,3000,,20
    7839,KING,PRESIDENT,,1981-11-17 00:00:00,5000,,10
    7844,TURNER,SALESMAN,7698,1981-09-08 00:00:00,1500,0,30
    7876,ADAMS,CLERK,7788,1987-05-23 00:00:00,1100,,20
    7900,JAMES,CLERK,7698,1981-12-03 00:00:00,950,,30
    7902,FORD,ANALYST,7566,1981-12-03 00:00:00,3000,,20
    7934,MILLER,CLERK,7782,1982-01-23 00:00:00,1300,,10
    
    14 rows selected.

2、oracle用户创建目录

$mkdir -p /home/oracle/sqlload
    $cd /home/oracle/sqlload
    $vi emp.dat

查看数据源

$ more emp.dat
    7369,SMITH,CLERK,7902,1980-12-17 00:00:00,800,,20
    7499,ALLEN,SALESMAN,7698,1981-02-20 00:00:00,1600,300,30
    7521,WARD,SALESMAN,7698,1981-02-22 00:00:00,1250,500,30
    7566,JONES,MANAGER,7839,1981-04-02 00:00:00,2975,,20
    7654,MARTIN,SALESMAN,7698,1981-09-28 00:00:00,1250,1400,30
    7698,BLAKE,MANAGER,7839,1981-05-01 00:00:00,2850,,30
    7782,CLARK,MANAGER,7839,1981-06-09 00:00:00,2450,,10
    7788,SCOTT,ANALYST,7566,1987-04-19 00:00:00,3000,,20
    7839,KING,PRESIDENT,,1981-11-17 00:00:00,5000,,10
    7844,TURNER,SALESMAN,7698,1981-09-08 00:00:00,1500,0,30
    7876,ADAMS,CLERK,7788,1987-05-23 00:00:00,1100,,20
    7900,JAMES,CLERK,7698,1981-12-03 00:00:00,950,,30
    7902,FORD,ANALYST,7566,1981-12-03 00:00:00,3000,,20
    7934,MILLER,CLERK,7782,1982-01-23 00:00:00,1300,,10

3、conventional方式导入

建立控制文件

$ vi emp.ctl
    
    load data infile '/home/oracle/sqlload/emp.dat' insert #insert 插入表必须是空表，非空表用append into table emp1 fields terminated by ',' optionally enclosed by '"' ( empno, ename, job, mgr, hiredate, sal, comm, deptno)

4、在scott下建立emp1表（内部表），只要结构不要数据

SQL> create table emp1 as select * from emp where 1=2;

5)执行导入（normal）

$ sqlldr scott/yjkj control=emp1.ctl log=emp1.log
    
    SQL*Loader: Release 10.2.0.1.0 - Production on Thu Aug 11 12:18:36 2011
    Copyright (c) 1982, 2005, Oracle.  All rights reserved.
    Commit point reached - logical record count 14