Hi,
My input file is
$cat samp
1 siva
1 raja
2 siva
1 siva
2 raja
4 venkat
i want sort this name wise...alos need to remove duplicate lines.
i am using
cat samp|awk '{print $2,$1}'|sort -u
it showing
raja 1 (3 Replies)
I have a column of numbers in the following format:
1.722e-05
2.018e-05
2.548e-05
2.747e-05
7.897e-05
4.016e-05
4.613e-05
4.613e-05
5.151e-05
5.151e-05
5.151e-05
6.1e-05
6.254e-05
7.04e-05
7.12e-05
7.12e-05 (6 Replies)
My scenario is that I need to pick value from third column based on fourth column value, if fourth column value is 1 then first value of third column.Third column (2|3|4|6|1) values are cancatenated.
Please someone help me to resolve this issue.
Source
column1 column2 column3 column4... (2 Replies)
Hi,
I have a similar input format-
A_1 2
B_0 4
A_1 1
B_2 5
A_4 1
and looking to print in this output format with headers. can you suggest in awk?awk because i am doing some pattern matching from parent file to print column 1 of my input using awk already.Thanks!
letter number_of_letters... (5 Replies)
Hi,
i need to sort content of files based on a specific value. An example as below.
Input1.txt
Col_1
SW_MH2_ST
ST_F72_9S
SW_MH3_S6
Col_2
SW_MH3_AS7
ST_S15_9CH
SW_MH3_AS8
SW_MH3_ST
Col_3
ST_M93_SZ
ST_C16_TC (12 Replies)
Hi All ,
I am having an input file like this
Input file
7 sks/jsjssj/ddjd/hjdjd/hdhd/Q 10 0.5 13
dkdkd/djdjd/djdjd/djd/QB 01 0.5
ldld/dkd/jdf/fjfjf/fjf/Q 0.5
10 sjs/jsdd/djdkd/dhd/Q 01 0.5 21
kdkd/djdd/djdd/jdd/djd/QB 01 0.5
dkdld/djdjd/djd/Q 01 0.5
... (9 Replies)
Discussion started by: kshitij
9 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)