06-24-2005
I am not sure if I want to reload all that data again into another table and .....
As I am pulling data from a table using select * from table name into a text file and then doing sort -u file1 > file2.
Although, I could try doing a select distinct columns from the table.... and see if it will take more time than it took my original approach. Is it worth trying? I don't know.
I just don't have the luxury of trying different options at my will as it is a production database unless I know it's worth trying.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hello
i need help to remove directory . The directory is not empty ., it contains
several sub directories and files inside that..
total number of files in one directory is 12,24,446 .
rm -rf doesnt work . it is prompting for every file ..
i want to delete without prompting and... (6 Replies)
Discussion started by: getdpg
6 Replies
2. UNIX for Dummies Questions & Answers
Hello,
I can remove duplicate entries in a file by:
sort File1 | uniq > File2
but how can I remove duplicates without sorting the file?
I tried cat File1 | uniq > File2 but it doesn't work
thanks (4 Replies)
Discussion started by: orahi001
4 Replies
3. Shell Programming and Scripting
Hello Experts,
I have two files named old and new. Below are my example files. I need to compare and print the records that only exist in my new file. I tried the below awk script, this script works perfectly well if the records have exact match, the issue I have is my old file has got extra... (4 Replies)
Discussion started by: forumthreads
4 Replies
4. Shell Programming and Scripting
Hi,
I need to remove duplicates from a file. The file will be like this
0003 10101 20100120 abcdefghi
0003 10101 20100121 abcdefghi
0003 10101 20100122 abcdefghi
0003 10102 20100120 abcdefghi
0003 10103 20100120 abcdefghi
0003 10103 20100121 abcdefghi
Here if the first colum and... (6 Replies)
Discussion started by: gpaulose
6 Replies
5. Shell Programming and Scripting
Hi
I need a script that removes the duplicate records and write it to a new file
for example I have a file named test.txt and it looks like
abcd.23
abcd.24
abcd.25
qwer.25
qwer.26
qwer.98
I want to pick only $1 and compare with the next record and the output should be
abcd.23... (6 Replies)
Discussion started by: antointoronto
6 Replies
6. Shell Programming and Scripting
Hi,
I'm using the below command to sort and remove duplicates in a file. But, i need to make this applied to the same file instead of directing it to another.
Thanks (6 Replies)
Discussion started by: dvah
6 Replies
7. Shell Programming and Scripting
OK
I have two filelists......
The first is formatted like this....
/path/to/the/actual/file/location/filename.jpg
and has up to a million records
The second list shows filename.jpg where there is more then on instance.
and has maybe up to 65,000 records
I want to copy files... (4 Replies)
Discussion started by: Bashingaway
4 Replies
8. Shell Programming and Scripting
I need to use a bash script to remove duplicate files from a download list, but I cannot use uniq because the urls are different.
I need to go from this:
http://***/fae78fe/file1.wmv
http://***/39du7si/file1.wmv
http://***/d8el2hd/file2.wmv
http://***/h893js3/file2.wmv
to this:
... (2 Replies)
Discussion started by: locoroco
2 Replies
9. Shell Programming and Scripting
I have a file with the following format:
fields seperated by "|"
title1|something class|long...content1|keys
title2|somhing class|log...content1|kes
title1|sothing class|lon...content1|kes
title3|shing cls|log...content1|ks
I want to remove all duplicates with the same "title field"(the... (3 Replies)
Discussion started by: dtdt
3 Replies
10. Shell Programming and Scripting
Hi I have a below file structure.
200,1245,E1,1,E1,,7611068,KWH,30, ,,,,,,,,
200,1245,E1,1,E1,,7611070,KWH,30, ,,,,,,,,
300,20140223,0.001,0.001,0.001,0.001,0.001
300,20140224,0.001,0.001,0.001,0.001,0.001
300,20140225,0.001,0.001,0.001,0.001,0.001
300,20140226,0.001,0.001,0.001,0.001,0.001... (1 Reply)
Discussion started by: tejashavele
1 Replies
LEARN ABOUT DEBIAN
database
database(1grass) Grass User's Manual database(1grass)
GRASS GIS 6.4.2 Reference Manual
Geographic Resources Analysis Support System, commonly referred to as GRASS, is a <a href="http://en.wikipedia.org/wiki/Geographic_informa-
tion_system">Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps produc-
tion, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many
governmental agencies and environmental consulting companies.
This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU
GPL'ed), image processing and geographic information system (GIS). Go back to help overview
database commands:
| db.columns | List all columns for a given table.
| db.connect | Prints/sets general DB connection for current mapset and exits.
| db.copy | Copy a table.
| db.describe | Describes a table in detail.
| db.drivers | Lists all database drivers.
| db.dropcol | Drops a column from selected attribute table
| db.droptable | Drops an attribute table.
| db.execute | Executes any SQL statement.
| db.in.ogr | Imports attribute tables in various formats.
| db.login | Sets user/password for driver/database.
| db.out.ogr | Exports attribute tables into various formats.
| db.select | Selects data from attribute table (performs SQL query statement(s)).
| db.tables | Lists all tables for a given database.
| db.test | Test database driver, database must exist and set by db.connect.
Full Index
(C) 2003-2011 GRASS Development Team
GRASS 6.4.2 database(1grass)