Hi there,
I am trying to write a shell script as root on AIX 5.3 where I change user to db2inst1, connect to our db2 database, run a sql select query and export the result of the query to a file.
The code I have so far is as follows:-
#!/usr/bin/ksh
su - db2inst1 -c "db2 connect to... (0 Replies)
Hi ,
I am using a db2 query to get the maximum sequence number from a field.Now this value is taking up only 2 places.(i.e its less than 100).It can grow up to 3 places later but me requirement is that when i write it in a text file, it should be padded upto 8 places.
Please help (1 Reply)
Hi All,
I want to connect two tables in DB2 using shell script and then compare the contents of two tables field by field.and i should return on the screen the un matched records ..
Could any one please help me in connecting database tables using Unix and retriving data from the same. (1 Reply)
Hello,
Can someone please advise me how to put the db2 query reult into an array?
For example, the query reults are:
string A
string B
string C
Then how do I put them into array=string A
array=string B
... (2 Replies)
I want to print the output of a db2 query, on to an unix file in a manner that the columns are separated by 'commas'. Please help me out..thanx in advance (1 Reply)
I am new to AIX, but not new to the UNIX world. Recently I got a request to come with some kind of report to do the following: report if user query is using > 70% CPU (within DB2) > 5 minutes. I am by no means a DB2 guru so I do not know how to get that from within it, so I was wondering if there... (4 Replies)
Hi,
Im new to DB2.
I need to connect to DB2 from shell script and return the query output back to shell script variable.
this is my code
#!/bin/ksh
db_name=db
db_user=usr
db_pwd=pwd
db2 <<EOSQL
connect to $db_name user $db_user using "$db_pwd"
select count(1) from table
quit
EOSQL ... (3 Replies)
Hello,
i need some help with a script. I made a script, which connect to different hosts to get some informations. But i got now some problems with getting informations of a database (db2) which is on a other host. I tried something like
var=$(rsh HOST su - db2adm -c "db2 connect to database;... (2 Replies)
Hi Team
I am using DB2 artisan tool and struck to handle multi values present in columns that are comma(,) separated. I want to convert those column values in separate rows .
For example :
Column 1 Column2
Jan,Feb Hold,Sell,Buy
Expected Result
Column1 ... (3 Replies)
Dear Team
I am using DB2 v9 .
I have a condition to check roles based on hierarchies like below example.
1.Ramesh has Roles as "Manager" and "Interviewer"
2.KITS has Roles as "Interviewer"
3.ANAND has Roles as "Manager" and "Interviewer"
select * FROM TESTING
NAME ... (6 Replies)
Discussion started by: Perlbaby
6 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)