oracle load.sh 是通过shell对sqlldr重新封装，使sqlldr使用更方便，导入文本更方便，不用再很麻烦的配置sqlldr控制文件。
1 可以根据传入参数指定分隔符 -a
2 指定行结束符 -e
3 指定字段内容被特殊字符包裹 -ae
4 指定装入模式 -m
5 指定装入文本字符集
6 指定控制文件来源 -cm 若为A 追加 -c 自定义控制文件内容 若为H 则根据第一行标题 若为R则根据-c自定义控制文件导入
自定一控制文件格式为：
字段@字段处理
-----------------
eg:sqlldr.config
ETL_DT@"NVL(:ETL_DT,'2010-01-01')"
------------------------------------
如以上控制文件若ETL_DT 为空则写入'2010-01-01'
源码：
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#!/bin/ksh
###########################################################################################
#脚本名称: load.sh
#脚本功能: 导入数据文件到指定数据库的指定数据表中
#涉及文件:
#脚本调用: sh load.sh -u user -p passwd -i sid -a '|' -f file.unl -t tablename
#脚本参数:
#输出文件:
#返回值 :
#使用实例:
# sh load.sh -u fhts -p fhts -i odsbptdb -a '|' -f tmp.unl -t tmp -m truncate
# yyyy-mm-dd (日期格式，如果不填默认yyyymmdd)
#编写人 : sqniu
#编写日期: 2009/10/16
###########################################################################################
usage(){
echo
echo " $0(数据装载)"
echo " ===================="
echo " Usage:"
echo " sh $0 -u -p -i -t -f -a -e -d "
echo " 参数:"
echo " -u oracle数据库用户"
echo " -p oracle数据库密码"
echo " -i oracle tra_id"
echo " -t 要装载的数据库表"
echo " -f 需要装载数据文件(包括绝对路径)"
echo " [-a] 记录分隔符,默认为'|'"
echo " [-ae] 包含字段数据特殊符"
echo " [-d] 载入时间类型"
echo " [-l] 装载数据行数 默认全部装入"
echo " [-e] 载如文件的结束符"
echo " [-nls] 装载数据字符集 UTF8 或者ZHS16GBK"
echo " [-s] 跳过文件行数"
echo " [-m] 数据装载方式TRUNCATE APPEND INSERT,默认TRUNCATE"
echo " [-txt] 文件预处理S清除文件空格A文件尾加分隔符U文件转换UNIX格式"
echo " [-c] 参数文件 字段名@字段后置处理"
echo " [-cm] 参数文件内容默认追加，A 末尾追加，R 全量替换 ，H 依据文件头信息"
echo
exit -1
}
# 函数
writeLog()
{
echo -e $1
echo -e $1 >>$LOG
}
mk_control_file()
{
_USER_PSWD=$1
_Separator=$2
_File=$3
_TableName=$4
_Meathod=$5
DescTempFile=${Base_File}.desc.$$
DescTempFile2=${Base_File}.2.desc.$$
SqlLog=${Base_File}.log.$$
sqlplus -S ${_USER_PSWD} <<TMP >>/dev/null
set echo off;
set feedback off;
set tab off;
set heading off;
set pagesize 0;
set linesize 1000;
set numwidth 12;
set termout off;
set trimout on;
set trimspool on;
spool ${DescTempFile};
desc ${_TableName}
spool off;
TMP
if [ $? != 0 ]
then
writeLog "\n====================\n数据库连接错误！\n===================="
exit -1
fi
Line_File="AAAAA"
if [ -f ${DescTempFile} ]
then
cat ${DescTempFile}|sed '1,2d'|sed 's/[ ][ ]*/ /g'|sed '$d'|sed 's/^ //g'|awk '{if ($2=="DATE" || $4=="DATE") {print $1 " DATE \"'${DateType}'\""} else {print $1}}'|sed 's/$/,/g'|sed '$s/,$//'|sed '/^$/d'|sed 's/NOT NULL //g'|sed 's/ VARCHAR2/ CHAR/g'|sed 's/ VARCHAR/ CHAR/g'>>${DescTempFile2}
Line_File=`head -1 ${DescTempFile}`
else
rm -f ${DescTempFile}
rm -f ${DescTempFile2}
writeLog "\n====================\n数据库连接错误！\n===================="
exit -1
fi
if [ ${Line_File:0:5} = "ERROR" ]
then
rm -f ${DescTempFile}
rm -f ${DescTempFile2}
writeLog "\n====================\n表不存在！\n===================="
exit -1
fi
echo "LOAD DATA ${Nls_String} INFILE '${_File}' ${Line_closed} BADFILE 'bad_${_TableName}.bad' ${_Meathod} INTO TABLE ${_TableName} FIELDS TERMINATEd BY \"${_Separator}\" " > ${Base_File}.ctl
echo ${End_Sqlite} >>${Base_File}.ctl
echo "TRAILING NULLCOLS ">>${Base_File}.ctl
echo "(">>${Base_File}.ctl
cat ${DescTempFile2} >>${Base_File}.ctl
rm -f ${_TableName}
rm -f ${DescTempFile}
rm -f ${DescTempFile2}
}
mk_exec_shell()
{
_USER_PSWD=$1
_Separator=$2
_File=$3
_TableName=$4
_SkipRow=$5
echo "sqlldr ${_USER_PSWD} control=${Base_File}.ctl skip=${_SkipRow} ${Load_rows} rows=${CtlRow} errors=10000 bindsize=${BindSize} readsize=${ReadSize} log=log_${Base_File}.log bad=bad_${Base_File}.bad" > load_${Base_File}.sh
}
if [ $# -lt 5 ]
then
echo "参数有误,请检查......"
usage
fi
while [ 1 ]
do
if [ "$1" = "-u" ]
then
shift 1
user=$1
fi
if [ "$1" = "-p" ]
then
shift 1
passwd=$1
fi
if [ "$1" = "-i" ]
then
shift 1
server=$1
fi
if [ "$1" = "-t" ]
then
shift 1
TableName=$1
fi
if [ "$1" = "-f" ]
then
shift 1
File=$1
fi
if [ "$1" = "-a" ]
then
shift 1
Separator=$1
fi
if [ "$1" = "-d" ]
then
shift 1
DateType=$1
fi
if [ "$1" = "-s" ]
then
shift 1
SkipLine=$1
fi
if [ "$1" = "-m" ]
then
shift 1
Meathod=$1
fi
if [ "$1" = "-l" ]
then
shift 1
Load_rows=$1
fi
if [ "$1" = "-ae" ]
then
shift 1
End_Sqlite=$1
fi
if [ "$1" = "-e" ]
then
shift 1
Line_closed=$1
fi
if [ "$1" = "-nls" ]
then
shift 1
Nls_String=$1
fi
if [ "$1" = "-c" ]
then
shift 1
Config=$1
fi
if [ "$1" = "-txt" ]
then
shift 1
Prepare=$1
fi
if [ "$1" = "-cm" ]
then
shift 1
ConfigP=$1
fi
shift 1
if [ $# -eq 0 ]
then
break
fi
done
if [ "$SkipLine" = "" ]
then
SkipLine=0
fi
if [ "$Separator" = "" ]
then
Separator="|"
fi
if [ "$DateType"x = ""x ]
then
DateType=yyyymmdd
fi
if [ "$Meathod" = "" ]
then
Meathod=TRUNCATE
fi
if [ "$End_Sqlite" != "" ]
then
End_Sqlite="OPTIONALLY ENCLOSED BY "$End_Sqlite
fi
if [ "$Load_rows" != "" ]
then
Load_rows="load="$Load_rows
fi
if [ "$Nls_String" != "" ]
then
Nls_String="CHARACTERSET "$Nls_String
fi
if [ "$Line_closed" = "w" ]
then
Line_closed=\""str "X\'0D0A\'\"
fi
USER_PSWD=$user/$passwd@$server
Base_File=`basename $File`
# 环境变量区
DATE=`date +%Y%m%d`
LOG=$HOME/log/$DATE/LoadTable/$File.$DATE
LOG_DIR=`dirname $LOG`
CtlRow=100000
BindSize=16384000
ReadSize=16384000
if [ ! -d $LOG_DIR ]
then
mkdir -p $LOG_DIR
retcode=$?
if [ "$retcode" != "0" ]
then
echo -e "\n==================\n 不能创建日志文件路径\n=================="
exit -1
fi
fi
if [ ! -f $LOG ]
then
>$LOG
retcode=$?
if [ "$retcode" != "0" ]
then
echo -e "\n==================\n 不能创建日志文件 \n==================="
exit -1
fi
fi
cp $File ${File}.temp
if [ "${Prepare:0:1}" = "U" ] || [ "${Prepare:1:1}" = "U" ] || [ "${Prepare:2:1}" = "U" ]
then
dos2unix ${File}.temp
fi
if [ "${Prepare:0:1}" = "S" ] || [ "${Prepare:1:1}" = "S" ] || [ "${Prepare:2:1}" = "S" ]
then
sed -i 's/ //g' ${File}.temp
fi
if [ "${Prepare:0:1}" = "A" ] || [ "${Prepare:1:1}" = "A" ] || [ "${Prepare:2:1}" = "A" ]
then
sed -i 's/$/'${Separator}'/g' ${File}.temp
fi
mk_control_file $USER_PSWD $Separator ${File}.temp $TableName $Meathod
if [ "$ConfigP" = "" ]
then
echo ")">>${Base_File}.ctl
fi
if [ "$ConfigP" = "A" ]
then
while read LINE
do
if [ `echo ${LINE:0:1}` == '#' ]
then
continue
fi
Tab_Line1=`echo ${LINE}|awk -F '@' '{print $1}'|tr a-z A-Z`
Tab_Line2=`echo ${LINE}|awk -F '@' '{print $2}'`
sed -i 's/'${Tab_Line1}'/'${Tab_Line1}${Tab_Line2}'/g' ${Base_File}.ctl
done<${Config}
fi
if [ "$ConfigP" = "R" ]
then
sed -i '5,$d' ${Base_File}.ctl
while read LINE
do
if [ `echo ${LINE:0:1}` == '#' ]
then
continue
fi
Tab_Line1=`echo ${LINE}|awk -F '@' '{print $1}'|tr a-z A-Z`
Tab_Line2=`echo ${LINE}|awk -F '@' '{print $2}'`
echo ${Tab_Line1}${Tab_Line2},>> ${Base_File}.ctl
done<${Config}
sed -i '$s/,$//' ${Base_File}.ctl
sed -i '/^$/d' ${Base_File}.ctl
echo ")" >>${Base_File}.ctl
fi
if [ "$ConfigP" = "H" ]
then
SiikipLine=1
sed -i '5,$d' ${Base_File}.ctl
head -1 ${File}.temp >${Base_File}.hctl
sed -i 's/'${Separator}'/,/g' ${Base_File}.hctl
sed -i '$s/,$//' ${Base_File}.hctl
sed -i '/^$/d' ${Base_File}.hctl
cat ${Base_File}.hctl >>${Base_File}.ctl
echo ")" >>${Base_File}.ctl
fi
mk_exec_shell $USER_PSWD $Separator ${File}.temp $TableName $SkipLine
echo -e "\n=================================\n日志:log_${Base_File}.log\n=================================
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