10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
This post is already here but want to do this with another way
Merge multiples files with multiples duplicates keys by filling "NULL" the void columns for anothers joinning files
file1.csv:
1|abc
1|def
2|ghi
2|jkl
3|mno
3|pqr
file2.csv:
1|123|jojo
1|NULL|bibi... (2 Replies)
Discussion started by: yjacknewton
2 Replies
2. Programming
Hi team
Optimizer max permutations and search limit are set to 3.5 million and 10 respectively.The parameter instruct optimizer to evaluate up to 3.5 million permutations for max 10 table joins
I have query with 9 tables joined.
How many combinations will optimizer perform to find best... (1 Reply)
Discussion started by: Perlbaby
1 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I have 20 tab delimited text files that have a common column (column 1). The files are named GSM1.txt through GSM20.txt. Each file has 3 columns (2 other columns in addition to the first common column).
I want to write a script to join the files by the first common column so that in the... (5 Replies)
Discussion started by: evelibertine
5 Replies
4. UNIX for Dummies Questions & Answers
file1:
Toronto:12439755:1076359:July 1, 1867:6
Quebec City:7560592:1542056:July 1, 1867:5
Halifax:938134:55284:July 1, 1867:4
Fredericton:751400:72908:July 1, 1867:3
Winnipeg:1170300:647797:July 15, 1870:7
Victoria:4168123:944735:July 20, 1871:10
Charlottetown:137900:5660:July 1, 1873:2... (2 Replies)
Discussion started by: mindfreak
2 Replies
5. Shell Programming and Scripting
im trying to join 3 files together
sort -n ${ASS1_DATA_DIR}Prac1 | sed '/^#/d' > ${ASS1_OUTPUT_DIR}Prac1temp
sort -n ${ASS1_DATA_DIR}Prac2 | sed '/^#/d' > ${ASS1_OUTPUT_DIR}Prac2temp
join -a1 -a2 -1 1 -2 1 -o "0 1.2 2.2" -e " " ${ASS1_OUTPUT_DIR}Prac1temp ${ASS1_OUTPUT_DIR}Prac2temp >... (6 Replies)
Discussion started by: bigubosu
6 Replies
6. Shell Programming and Scripting
I have to join(no other command is allowed) 3 files together. And im aware that i have to sort these files(file1 file2 file3) first before I can join them.
However i have to output these sorted files to some temporary file. i can't just do sort -n file1 > file1 or i get an empty file output. Is... (3 Replies)
Discussion started by: bigubosu
3 Replies
7. UNIX for Dummies Questions & Answers
Hi.. Just a question:
Let's say we have three files:
test1.txt
---------
11111111 6
12121212 7
12345678 4
11112222 8
test2.txt
---------
11111111 5
12345678 6
11112222 6
test3.txt
---------
12345678 6
12121212 8 (3 Replies)
Discussion started by: nelsonandwee
3 Replies
8. UNIX for Dummies Questions & Answers
Hello,
My apologies if this has been posted elsewhere, I have had a look at several threads but I am still confused how to use these functions. I have two files, each with 5 columns:
File A: (tab-delimited)
PDB CHAIN Start End Fragment
1avq A 171 176 awyfan
1avq A 172 177 wyfany
1c7k A 2 7... (3 Replies)
Discussion started by: InfoSeeker
3 Replies
9. Programming
example sql:
select a.a1,b.b1,c.c1,d.d1,e.e1
from a
left outer join b on a.x=b.x
left outer join c on b.y=c.y
left outer join d on d.z=a.z
inner join a.t=e.t
I know how single outer or inner join works in sql.
But I don't really understand when there are multiple of them.
can... (0 Replies)
Discussion started by: robbiezr
0 Replies
10. Shell Programming and Scripting
Hi,
I am a new learner of join command. Some result really make me confused.
Please kindly help me.
input:
file1:
LEO oracle engineer 210375
P.Jones Office Runner ID897
L.Clip Personl Chief ID982
S.Round UNIX admin ID6
file2:
Dept2C ID897 6 years
Dept5Z ID982 1 year
Dept3S ID6 2... (1 Reply)
Discussion started by: summer_cherry
1 Replies