01-09-2007
finding null records in data file
I am having a "|" delimited flat file and I have to pick up all the records with the 2nd field having null value. Please suggest.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I just need to add a static ID to each output record so the users will be able to tell which group records in combined flatfiles come from I have the static ID in a bourne variable. I tried
awk '{print "${GroupID}" $0}' infile > outfile
But I ended up with the string ${GroupID} instead of... (5 Replies)
Discussion started by: gillbates
5 Replies
2. Shell Programming and Scripting
Hi,
I have a .txt file (uniqfields.txt) with 3 fields separated by " | " (pipe symbol). This file contains unique values with respect to all these 3 fields taken together. There are about 40,000 SORTED records (rows) in this file. Sample records are given below.
1TVAO|OVEPT|VO... (2 Replies)
Discussion started by: RRVARMA
2 Replies
3. Shell Programming and Scripting
Hi,
can I do something like this to add a condition of checking if the 4th field is number or space or blank also:
awk -F, '$4 /^*||*/' MYFILE >> OTHERFILE
I also want the other part i.e. I need to exclude all lines whose 4th field is space or blank or number:
MYFILE
a,b,c,d,e
a,b,c,2,r... (2 Replies)
Discussion started by: praveenK_Dudala
2 Replies
4. Shell Programming and Scripting
Hello,
I have got one file with more than 120+ million records(35 GB in size). I have to extract some relevant data from file based on some parameter and generate other output file.
What will be the besat and fastest way to extract the ne file.
sample file format :--... (2 Replies)
Discussion started by: learner16s
2 Replies
5. Shell Programming and Scripting
Hi,
I have a pipe seperated file
I want to write a code to display count of lines that have 20th field not null.
nawk -F"|" '{if ($20!="") print NR,$20}' xyz..txt
This displays records with 20th field also null.
I would like output as: (4 Replies)
Discussion started by: pinnacle
4 Replies
6. UNIX and Linux Applications
Hi
I've been trying to delete columns from a file, and the best option I could come up was to initialise them to NULL.
The reason for this is because I need to compare the differences between 2 files with those specific columns excluded.
Here is my script:
#!/bin/bash... (4 Replies)
Discussion started by: ladyAnne
4 Replies
7. Shell Programming and Scripting
Hi All
I have a file having columns such as
AAA,BBB,CCC,Aug 13 2013
AAA,BBB,CCC,Aug 11 2013
AAA,BBB,CCC,Aug 12 2013
AAA,BBB,CCC,Aug 13 2013
Now I need to extract the records which are not of todays date (Considering Today date is 13-Aug-2013
So I should get below records... (10 Replies)
Discussion started by: Prashantckc
10 Replies
8. Shell Programming and Scripting
Hi,
I have a requirement.for eg: i have a text file with pipe symbol as delimiter(|) with 4 columns a,b,c,d. Here a and b are primary key columns..
i want to process that file to find the duplicates and null values are in primary key columns(a,b) . I want to write the unique records in which... (5 Replies)
Discussion started by: praveenraj.1991
5 Replies
9. Shell Programming and Scripting
XYZNA0000778800Z
16123000012300321000000008000000000000000
16124000012300322000000007000000000000000
17234000012300323000000005000000000000000
17345000012300324000000004000000000000000
17456000012300325000000003000000000000000
9
XYZNA0000778900Z
16123000012300321000000008000000000000000... (8 Replies)
Discussion started by: later_troy
8 Replies
10. UNIX for Beginners Questions & Answers
I have three files named ALL, MATCH, and DIFF. Match and diff have completely different records included in the "all" file, but the "all" file also has records not in either the Match or Diff files.
I know I can sort all three files together, one unique and one without that option to show which... (5 Replies)
Discussion started by: wbport
5 Replies
LEARN ABOUT PHP
pg_copy_from
PG_COPY_FROM(3) PG_COPY_FROM(3)
pg_copy_from - Insert records into a table from an array
SYNOPSIS
bool pg_copy_from (resource $connection, string $table_name, array $rows, [string $delimiter], [string $null_as])
DESCRIPTION
pg_copy_from(3) inserts records into a table from $rows. It issues a COPY FROM SQL command internally to insert records.
PARAMETERS
o $connection
- PostgreSQL database connection resource.
o $table_name
- Name of the table into which to copy the $rows.
o $rows
- An array of data to be copied into $table_name. Each value in $rows becomes a row in $table_name. Each value in $rows should be
a delimited string of the values to insert into each field. Values should be linefeed terminated.
o $delimiter
- The token that separates values for each field in each element of $rows. Default is TAB.
o $null_as
- How SQL NULL values are represented in the $rows. Default is N ("\N").
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
pg_copy_from(3) example
<?php
$db = pg_connect("dbname=publisher") or die("Could not connect");
$rows = pg_copy_to($db, $table_name);
pg_query($db, "DELETE FROM $table_name");
pg_copy_from($db, $table_name, $rows);
?>
SEE ALSO
pg_copy_to(3).
PHP Documentation Group PG_COPY_FROM(3)