What does 'just the column 1' mean? If column 1 is a small number your intersection will be large.
This is a start, using only column 1 to compare, giving a union:
If this is really what you want we can go on to creating "unique" output - an intersection.
Hi,
I have one situation. I have some 6-7 no. of files in one directory & I have to extract all the lines which exist in all these files. means I need to extract all common lines from all these files & put them in a separate file.
Please help. I know it could be done with the help of... (11 Replies)
Dear All,
I am new to this forum and please ignore my little knowledge :p
I have two types of data (a subset is given below)
data version 1:
439798 2 1
451209 1 2
508696 2 1
555760 2 1
582757 1 2
582889 1 2
691827... (2 Replies)
Hi Friends,
I am new to Shell Scripting and need your help in the below situation.
- I have two files (File 1 and File 2) and the contents of the files are mentioned below.
- "Application handle" is the common field in both the files.
(NOTE :- PLEASE REFER TO THE ATTACHMENT "Compare files... (2 Replies)
Hi
I have two sample files attached here
one file contain entries in one column and second file contains entries in many columns
I have to match entries of first file with entries in secon d file form secon column onwards and if matches write "match" in front of it.
I tried several... (11 Replies)
Hi All,
I have 4 files in below format. I took them as an example.
File 1: Cut from position 1-4 then 6-7 then 8-14 then rest left and make them as columns in one new file. Inserting character H to the initial of all line like HCTOT.
CTOT 456787897 Low fever
CTOR 556712345 High fever... (2 Replies)
Hi,
I am new to Unix and I am finding it hard to fix a particular logic.
The context is as below.
File 1 :
This contains of 5 fields :
Type | Bank Code | Account | Name | Date/Time
60|ABC123|TX123456|XXXX|YYYYMMDDHH:MM:SS
72|ABC123|MYD34561|XXXX|YYYYMMDDHH:MM:SS... (4 Replies)
Hello Unix gurus,
I have a file with this format (example values):
label1 1 0
label2 1 0
label3 0.4 0.6
label4 0.5 0.5
label5 0.1 0.9
label6 0.9 0.1
in which:
column 1 is a row label
column 2 and 3 are values
I would like to do a simple operation on this table and get the... (8 Replies)
Hi all,
I've multiple files. In this case 5. Space separated columns. Each file has 12 columns. Each file has 300-400K lines.
I want to get the output such that if a value in column 2 is present in all the files then get all the columns of that value and print it side by side.
Desired output... (15 Replies)
Hello,
I am new to Unix and would like to seek a help, please.
I have 2 files (file_1 and file_2), I need to perform the following actions.
1 ) Sort the both file by the column 26-36 (which is Invoice number)
what is sort command with the column sort?
2) Compare the file_1.sorted and... (3 Replies)
Hello,
I have a file with 2 columns ( tableName , ColumnName) delimited by a Pipe like below . File is sorted by ColumnName.
Table1|Column1
Table2|Column1
Table5|Column1
Table3|Column2
Table2|Column2
Table4|Column3
Table2|Column3
Table2|Column4
Table5|Column4
Table2|Column5
From... (6 Replies)
Discussion started by: nv186000
6 Replies
LEARN ABOUT PHP
pdostatement.fetchcolumn
PDOSTATEMENT.FETCHCOLUMN(3) 1 PDOSTATEMENT.FETCHCOLUMN(3)PDOStatement::fetchColumn - Returns a single column from the next row of a result set
SYNOPSIS
public mixed PDOStatement::fetchColumn ([int $column_number])
DESCRIPTION
Returns a single column from the next row of a result set or FALSE if there are no more rows.
Note
PDOStatement.fetchColumn(3) should not be used to retrieve boolean columns, as it is impossible to distinguish a value of FALSE from
there being no more rows to retrieve. Use PDOStatement.fetch(3) instead.
PARAMETERS
o $column_number
- 0-indexed number of the column you wish to retrieve from the row. If no value is supplied, PDOStatement.fetchColumn(3) fetches
the first column.
RETURN VALUES PDOStatement.fetchColumn(3) returns a single column in the next row of a result set.
Warning
There is no way to return another column from the same row if you use PDOStatement.fetchColumn(3) to retrieve data.
EXAMPLES
Example #1
Return first column of the next row
<?php
$sth = $dbh->prepare("SELECT name, colour FROM fruit");
$sth->execute();
print("Fetch the first column from the first row in the result set:
");
$result = $sth->fetchColumn();
print("name = $result
");
print("Fetch the second column from the second row in the result set:
");
$result = $sth->fetchColumn(1);
print("colour = $result
");
?>
The above example will output:
Fetch the first column from the first row in the result set:
name = lemon
Fetch the second column from the second row in the result set:
colour = red
SEE ALSO PDO.query(3), PDOStatement.fetch(3), PDOStatement.fetchAll(3), PDO.prepare(3), PDOStatement.setFetchMode(3).
PHP Documentation Group PDOSTATEMENT.FETCHCOLUMN(3)