For records with fields 2, 3, 4, 5, 6, 8, and 9 with the same values, do you want the lowest "first" and the highest "last" or do you want a single line with the greatest difference between "first" and "last"? If the latter, what happens if two records have distinct ranges with the same difference (such as with the input lines:
should the output be:
or should it be one of the input lines). If one of the input lines, does it matter which one?
Does the order of the lines in the table in your output matter?
Why doesn't your sample output contain the 2nd header line from your sample input?
Why is there no | at the end of the last two lines of your sample input and the last line of your sample output?
Why isn't there a | at the start of the 1st header line in your sample input and output files?
I think it should be obvious what I'm trying to do from my command, but just to be sure it's clear, I'm trying to append 2 lines after a matched line and then delete 2 other lines within a file. I'd like to do it in 1 line if possible.
This code isn't working, but hopefully it's just a syntax... (0 Replies)
I want to write a sed command that does the following work:
file: <a>asdfasdf<\s>
<line>hello</line>
<b>adf<\c>
<b>tttttttt<\c>
output:
name=hello
sed -e 's/^*//' -n -e '/<line>/s/<*>//gp;' -e 's/^/name="/g' file
but I can not append "=" after getting the line with... (5 Replies)
Hi guys,
I am new on here, I have a function in oracle that returns a specific value:
create or replace
PACKAGE BODY "CTC_ASDGET_SCHED" AS
FUNCTION FN_ASDSCHEDULE_GET
RETURN VARCHAR2
AS
BEGIN
DECLARE
ASDSchedule varchar2(6);
ASDComplete... (1 Reply)
Hi Experts:
I have a shell script that's kicked off by cron. Inside this shell script, I need to kick off two or more oracle sql scripts to process different groups of tables. And when both sql scripts are done, I will continue in the shell script to do other things like checking processing... (3 Replies)
Hi,
This may not be the right forum but i am hoping someone knows an answer to this.
I have to capture rows for a column that was deleted. How can i do that without having to write a select query?
delete from myschema.mytable where currentdatetimestamp > columnDate
this should delete 5... (4 Replies)
To delete log files content older than 30 days and append the lastest date log file date in the respective logs
I want to write a shell script that deletes all log files content older than 30 days and append the lastest log file date in the respective logs
This is my script
cd... (2 Replies)
Hi All
This might be a weird query but its related to deleting specific details in database.
Bascially I had built a database using a set of files
seq1 of 300 mb
seq2 of 200 mb
seq3 of 350 mb
seq4 of 300 mb
and after building the database i realized that i didn't need the whole data.... (6 Replies)
Hello,
I am trying to remove some rows in a table, which are including a phrase at a defined column but i could not find the unique result for this.
What I wish to do is to remove all lines including http://xx.yy at link column
... (2 Replies)
Hi All,
I want to run multiple sql queries and store the data in variable but i want to use sql command only once. Is there a way without running sql command twice and storing.Please advise.
Eg :
Select 'Query 1 output' from dual;
Select 'Query 2 output' from dual;
I want to... (3 Replies)
SQL*Plus version : 11.2.0.4
OS : Oracle Linux 6.5
SQL*Plus is a client application to connect to oracle database. The log file for this tool is generated via spool command as shown below.
I am trying to append date ( $dateString ) to spool file as shown below.
$ cat test2.sh
#!/bin/bash... (4 Replies)
Discussion started by: kraljic
4 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)