[20191003]oracle number型別儲存轉化指令碼.txt

[20191003]oracle number型別儲存轉化指令碼.txt

--//完善指令碼，增加支援科學記數法。比如1e4之類的寫法。

2.測試：
$ cat test.txt
0
1
2
25
123
4100
-4100
41000000
-41000000
132004078
2.01
.3
.00000125
115.200003
-.00000125
-.3
-1
-5
-20032
-234.432
999999999999999999999999999999999999999900000000000000000000000000000000000000000000000000000000000000000000000000000000000000
-999999999999999999999999999999999999999900000000000000000000000000000000000000000000000000000000000000000000000000000000000000
.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
-.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
123456789012345678901234567890123456789012
-123456789012345678901234567890123456789012
0.123456789012345678901234567890123456789012
-0.123456789012345678901234567890123456789012

$ cat test.txt | xargs  -n 1 -I {}  bash -c "echo  {} ;./num2raw_4.sh {}" | paste - -
0       80
1       c1,02
2       c1,03
25      c1,1a
123     c2,02,18
4100    c2,2a
-4100   3d,3c,66
41000000        c4,2a
-41000000       3b,3c,66
132004078       c5,02,21,01,29,4f
2.01    c1,03,02
.3      c0,1f
.00000125       be,02,1a
115.200003      c2,02,10,15,01,04
-.00000125      41,64,4c,66
-.3     3f,47,66
-1      3e,64,66
-5      3e,60,66
-20032  3c,63,65,45,66
-234.432        3d,63,43,3a,51,66
999999999999999999999999999999999999999900000000000000000000000000000000000000000000000000000000000000000000000000000000000000  ff,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64
-999999999999999999999999999999999999999900000000000000000000000000000000000000000000000000000000000000000000000000000000000000 00,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02
.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001     80,02
-.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001    7f,64,66
123456789012345678901234567890123456789012      d5,0d,23,39,4f,5b,0d,23,39,4f,5b,0d,23,39,4f,5b,0d,23,39,4f,5b
-123456789012345678901234567890123456789012     2a,59,43,2d,17,0b,59,43,2d,17,0b,59,43,2d,17,0b,59,43,2d,17,0b
0.123456789012345678901234567890123456789012    c0,0d,23,39,4f,5b,0d,23,39,4f,5b,0d,23,39,4f,5b,0d,23,39,4f,5b
-0.123456789012345678901234567890123456789012   3f,59,43,2d,17,0b,59,43,2d,17,0b,59,43,2d,17,0b,59,43,2d,17,0b
1e-130  80,02
-1e-130 7f,64,66
9.999999999999999999999999999999999999999e125   ff,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64
-9.999999999999999999999999999999999999999e125  00,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02,02

SCOTT@test01p> select a,dump(a,16) c80 from ty;
         A C80
---------- --------------------------------------------------------------------------------
         0 Typ=2 Len=1: 80
         1 Typ=2 Len=2: c1,2
         2 Typ=2 Len=2: c1,3
        25 Typ=2 Len=2: c1,1a
       123 Typ=2 Len=3: c2,2,18
      4100 Typ=2 Len=2: c2,2a
     -4100 Typ=2 Len=3: 3d,3c,66
  41000000 Typ=2 Len=2: c4,2a
 -41000000 Typ=2 Len=3: 3b,3c,66
 132004078 Typ=2 Len=6: c5,2,21,1,29,4f
      2.01 Typ=2 Len=3: c1,3,2
        .3 Typ=2 Len=2: c0,1f
 .00000125 Typ=2 Len=3: be,2,1a
115.200003 Typ=2 Len=6: c2,2,10,15,1,4
-.00000125 Typ=2 Len=4: 41,64,4c,66
       -.3 Typ=2 Len=3: 3f,47,66
        -1 Typ=2 Len=3: 3e,64,66
        -5 Typ=2 Len=3: 3e,60,66
    -20032 Typ=2 Len=5: 3c,63,65,45,66
  -234.432 Typ=2 Len=6: 3d,63,43,3a,51,66
         ~ Typ=2 Len=21: ff,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64
        -~ Typ=2 Len=21: 0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2
1.000E-130 Typ=2 Len=2: 80,2
-1.00E-130 Typ=2 Len=3: 7f,64,66
1.2346E+41 Typ=2 Len=21: d5,d,23,39,4f,5b,d,23,39,4f,5b,d,23,39,4f,5b,d,23,39,4f,5b
-1.235E+41 Typ=2 Len=21: 2a,59,43,2d,17,b,59,43,2d,17,b,59,43,2d,17,b,59,43,2d,17,b
.123456789 Typ=2 Len=21: c0,d,23,39,4f,5b,d,23,39,4f,5b,d,23,39,4f,5b,d,23,39,4f,5b
-.12345679 Typ=2 Len=21: 3f,59,43,2d,17,b,59,43,2d,17,b,59,43,2d,17,b,59,43,2d,17,b

28 rows selected.

--//我家裡的電腦有點慢，大概每個需要2秒。

2.附上轉化指令碼如下:
$ cat num2raw_4.sh

#! /bin/bash
#! number convert oracle raw.

odebug=${ODEBUG:-0}

# process input parameter ,delete "," and all spaces. save to variable v_num. and length to variable v_len.
v_num="$*"
v_num=${v_num//[, ]/}

# strip e or trailing 0s in decimals or 0000.000 output 0 ,
v_num=$(echo $v_num + 0 | sed -e "s/[eE]/*10^/" -e "s/^/scale=180;/" | bc | tr -d '\n\\\r' | sed -e "s/\.\([0-9]*[1-9]\)0\+$/.\1/" -e "s/\.0\+$//")

if [[ "$v_num" =~ ^-.*$ ]]; then
    v_sign=1
    v_num=${v_num:1:180}
else
    v_sign=0
fi

if [ $odebug -eq 1 ] ; then
    echo v_num="$v_num"
fi    

v_res=""
if [ "$v_num" == "0" ]; then
    v_res="80"
    echo "$v_res"
    exit 0
fi

# Guarantee . occur
# v_tmp1=$(echo "scale=180; $v_num/1" | bc |tr -d '\n\\\r' | sed -e "s/\.\([0-9]*[1-9]\)0\+$/.\1/")
# v_pos=$(expr index $v_tmp1 ".")

v_pos=$(expr index $v_num ".")

if [ $v_pos -gt 1 ]; then
    v_exp=$(( v_pos/2 ))
elif [ $v_pos -eq 0 ]; then
    v_exp=$(( (${#v_num}+1) /2 ))
elif [ $v_pos -eq 1 ]; then
    v_tmp1=${v_num:1:180}
    v_tmp2=$(echo $v_tmp1 | sed 's/^0\+//g')
    v_exp=$(( (${#v_tmp2} - ${#v_tmp1})/2 ))
else
    echo "number $v_num don't find dot!!"
    exit 1
fi

v_exp1=$(printf "%02x" $(( $v_exp+192 )))
if [ $v_sign -eq 1 ]; then
    v_exp1=$(printf "%02x" $(( 0xff - 0x${v_exp1} )))
fi

v_res=${v_exp1}${v_res}

v_tmp=$(echo "scale=180 ; $v_num / 100^($v_exp) " | bc | tr -d '\n\\\r'| sed -e "s/\.\([0-9]*[1-9]\)0\+$/.\1/" -e "s/\.0\+$//" -e "s/^\.//")

# oracle number type max length is 22 bytes (not 22 is 21 bytes??), 1 bytes exponent.
v_tmp=${v_tmp:0:40}
v_len=${#v_tmp}
v_tmp1=$(( $v_len % 2 ))

if [ $v_tmp1 -ne 0 ]; then
    v_tmp=${v_tmp}"0"
    v_len=$(( $v_len+1 ))
fi

if [ $odebug -eq 1 ] ; then
    echo v_num="$v_num" v_len="$v_len" v_exp="$v_exp" v_exp1="$v_exp1" v_tmp="$v_tmp"
fi    

if [ $v_sign -eq 0 ]; then
    for ((i=0;i<$v_len;i+=2))
    do
        v_tmp1=$(printf "%02x" $(( ${v_tmp:i:2} + 1 )))
        v_res=${v_res}","${v_tmp1}
    done
else
    for ((i=0;i<$v_len;i+=2))
    do
        v_tmp1=$(printf "%02x" $(( 101 - ${v_tmp:i:2} )))
        v_res=${v_res}","${v_tmp1}
    done
fi

# for ((i=0;i<$v_len;i+=2))
# do
#     if [ $v_sign -eq 0 ]; then
#         v_tmp1=$(printf "%02x" $(( ${v_tmp:i:2} + 1 )))
#     else        
#         v_tmp1=$(printf "%02x" $(( 101 - ${v_tmp:i:2} )))
#     fi
#     v_res=${v_res}","${v_tmp1}
# done

if [ $v_sign -eq 1 -a $v_len -lt 40 ]; then
    v_res=${v_res}",""66"
fi

echo "$v_res"