生成控制文件
准备工作：
SQL>set colsep ‘ ‘; //-域输出分隔符
SQL>set echo off; //显示start启动的脚本中的每个sql命令，缺省为on
SQL> set echo on //设置运行命令是是否显示语句
SQL> set feedback on; //设置显示“已选择XX行”
SQL>set feedback off; //回显本次sql命令处理的记录条数，缺省为on
SQL>set heading off; //输出域标题，缺省为on
SQL>set pagesize 0; //输出每页行数，缺省为24,为了避免分页，可设定为0。
SQL>set linesize 80; //输出一行字符个数，缺省为80
SQL>set numwidth 12; //输出number类型域长度，缺省为10
SQL>set termout off; //显示脚本中的命令的执行结果，缺省为on
SQL>set trimout on; //去除标准输出每行的拖尾空格，缺省为off
SQL>set trimspool on; //去除重定向（spool）输出每行的拖尾空格，缺省为off
SQL>set serveroutput on; //设置允许显示输出类似dbms_output
1、spool control.all;
select ctl_name from (
select ‘spool ctl/‘||lower(table_name)||‘.ctl‘ ctl_name,table_name, 0 cid from user_tables a
union all
select ‘select ‘‘LOAD DATA TRUNCATE into table ‘||table_name,table_name,0.1 cid from user_tables a
union all
select ‘FIELDS TERMINATED BY x‘||chr(39)||‘03‘||chr(39)||‘ OPTIONALLY ENCLOSED BY ‘||chr(39)||‘"‘||chr(39),table_name, 0.2 cid from user_tables a
union all
select ‘TRAILING NULLCOLS‘,table_name,0.3 cid from user_tables a
union all
select ‘(‘ ,table_name,0.4 cid from user_tables a
union all
select b.tab_column_ora,a.table_name,0.5 cid from user_tables a,tab_column_union b where a.table_name=b.TABLE_NAME
union all
select ‘) ‘‘ from dual;‘ ,table_name,0.6 cid from user_tables a
union all
select ‘spool off‘,table_name,0.7 cid from user_tables a
) aa order by table_name,cid;
spool off;
-----------生成一个新表tab_column_union，tab_column_ora字段对时间类型的col字段进行处理，用gy_etl_download存储过程处理。cid 伪列控制输出顺序。
-----------chr(39)是‘的意思，两个之间的部分有啥显示啥。
-----------------------------------------
备注：生成tab_column_union的存储过程 。
备注：
CREATE OR REPLACE PROCEDURE GY_ETL_DOWNLOAD as
n_count integer;
v_column_ora varchar2(4000);
begin
update tab_column_union set tab_column_db2=null;
for c1 in (select column_name,a.table_name,column_id,data_type from user_tables a,user_tab_columns b where a.table_name=b.TABLE_NAME order by a.table_name,column_id)
loop
n_count:=0;
v_column_ora:=null;
select count(*) into n_count from tab_column_ex where table_name=c1.table_name and tab_column=c1.column_name;
if n_count> 0 then
select ‘to_date‘||‘(‘||c1.column_name||‘,‘||chr(39)||‘yyyy-mm-dd-hh24.mi.ss‘||chr(39)||‘)‘ into v_column_ora from dual;
update tab_column_union set tab_column_ora=tab_column_ora||v_column_ora||‘,‘ where table_name=c1.table_name;
else
if c1.data_type=‘DATE‘ then
select c1.column_name||‘"to_date(:‘||c1.column_name||‘,‘||chr(39)||‘yyyymmdd‘||chr(39)||‘)"‘ into v_column_ora from dual;
update tab_column_union set tab_column_ora=tab_column_ora||v_column_ora||‘,‘ where table_name=c1.table_name;
else
update tab_column_union set tab_column_ora=tab_column_ora||c1.column_name||‘,‘ where table_name=c1.table_name;
end if;
end if;
END LOOP;
update tab_column_union t set tab_column_db2=substr(t.tab_column_db2,1,length(t.tab_column_db2)-1);
update tab_column_union t set tab_column_ora=substr(t.tab_column_ora,1,length(t.tab_column_ora)-1);
COMMIT;
end GY_ETL_DOWNLOAD;
----------------------------------------
2、在sqlplus里运行control.all脚本
SQL>@control.all
批量生成控制文件
3、执行命令脚本,脚本保存为impdata.sh
#!/bin/sh
#获取当前目录
currDir=`dirname $0`
cd $currDir
currDir=`pwd`
#数据库连接串
dbConnStr=joey/jy_123orcl11g
#数据文件保存目录
dataDir=$currDir/data
#控制文件
controlFile=$currDir/ctl/
#设置环境变量
#ORACLE_HOME=/opt/oracle/product/10201
#PATH=$PATH:$ORACLE_HOME/bin
#日志根目录
baseLogDir=$currDir/log
#插入失败数据的记录的目录
badLogDir=$baseLogDir/bad
#执行日志目录 (导入日志)
impLogDir=$baseLogDir/imp
#命令执行日志目录 (错误记录)
cmdLogDir=$baseLogDir/cmd
#创建日志目录
mkdir -p $badLogDir 2> /dev/null
mkdir -p $impLogDir 2> /dev/null
mkdir -p $cmdLogDir 2> /dev/null
for dataFile in `ls ${dataDir}/*.del`
do
logDateSuffix=`date "+%Y%m%d%H%M%S"`
sqlldr $dbConnStr \
silent=all errors=10000 \
data=$dataFile \
log=$impLogDir/`basename ${dataFile}`.$logDateSuffix.imp \
bad=$badLogDir/`basename ${dataFile}`.$logDateSuffix.bad \
control= $controlFile/`basename ${dataFile}`.ctl \
> /dev/null \
2>> $cmdLogDir/`basename ${dataFile}`.${logDateSuffix}.log
done
运行脚本 $./impdata.sh