@Akshay Hegde
Using _ as a variable name is not a good idea. It makes beginners wonder what is going on. Its valid, but use some thing else, like this:
When you see some like this example, its not easy to see what is going on awk '_ && _--;/test/{_=3}' file
Dear all,
Being new to Unix i have a problem. I have 2 files:
File 1:
118,1,0,2,3,0,5,0.3,0,0.3,0.6,1
118,2,1,2,2,0,5,0.4,0,0.4,0.4,1
118,4,2,0,3,0,5,0.7,0,0.3,0.6,1
118,6,4,1,0,0,5,0.8,0,0.2,0,1
File 2:
118,1,BFGL-NGS-109695,3610326,0,18,1,0.556,0.389,0.056,0.25,0.8183... (2 Replies)
Hi may i ask how to accomplish this task:
I have 2 files which has multiple columns
first file
1 a
2 b
3 c
4 d
second file
14 a 9 ....
13 b 10....
12 c 11...
11 d 12...
I want to merge the second file to first file that will looks like this
... (2 Replies)
Hi everyone. How can I merge two files, where each file has 2 columns and the first columns in both files are similar? I want all in a file of 4 columns; join command removes the duplicate columns.
1 Dave
2 Mark
3 Paul
1 Apple
2 Orange
3 Grapes
to get it like this in the 3rd file:... (9 Replies)
Hi,
I have tab limited file 1
and tab limited file 2
The output should contain common first column vales and corresponding 2nd column values; AND also unique first column value with corresponding 2nd column value of the file that contains it and 0 for the second file.
the output should... (10 Replies)
Hi!
I need to merge two files when col1 (x:x:x) matching and adds second column from file1.txt.
# cat 1.txt
aaa;a12
bbb;b13
ccc;c33
ddd;d55
eee;e11
# cat 2.txt
bbb;b55;34444;d55
aaa;a15;35666;a44
I try with this awk and I get succesfully first column from 1.txt:
# awk -F";"... (2 Replies)
Hi all, I've searched the web for a long time trying to figure out how to merge columns from multiple files.
I know paste will append columns like so:
paste file1 file2 file3 file4 file5 ...
But this becomes inconvenient when you want to append a large number of files into a single file.
... (2 Replies)
Hello and Good day
I have a lot of files with same number of rows and columns.$2 and $3 are the same in all files .
I need to merge $2,$3,$6 from first file and $6 from another files.
File1:
$1 $2 $3 $4 $5 $6... (8 Replies)
Hello,
I have two tab delimited text files. Both files have the same number of rows but not necessarily the same number of columns. The column headers look like,
File 1:
f0order CVorder Name f0 RI_9 E99 E199 E299 E399 E499 E599 E699 E799 E899 E999
File 2:... (9 Replies)
Discussion started by: LMHmedchem
9 Replies
LEARN ABOUT PHP
pg_fetch_array
PG_FETCH_ARRAY(3)PG_FETCH_ARRAY(3)pg_fetch_array - Fetch a row as an arraySYNOPSIS
array pg_fetch_array (resource $result, [int $row], [int $result_type = PGSQL_BOTH])
DESCRIPTION pg_fetch_array(3) returns an array that corresponds to the fetched row (record).
pg_fetch_array(3) is an extended version of pg_fetch_row(3). In addition to storing the data in the numeric indices (field number) to the
result array, it can also store the data using associative indices (field name). It stores both indicies by default.
Note
This function sets NULL fields to the PHP NULL value.
pg_fetch_array(3) is NOT significantly slower than using pg_fetch_row(3), and is significantly easier to use.
PARAMETERS
o $result
- PostgreSQL query result resource, returned by pg_query(3), pg_query_params(3) or pg_execute(3) (among others).
o $row
- Row number in result to fetch. Rows are numbered from 0 upwards. If omitted or NULL, the next row is fetched.
o $result_type
- An optional parameter that controls how the returned array is indexed. $result_type is a constant and can take the following
values: PGSQL_ASSOC, PGSQL_NUM and PGSQL_BOTH. Using PGSQL_NUM, pg_fetch_array(3) will return an array with numerical indices,
using PGSQL_ASSOC it will return only associative indices while PGSQL_BOTH, the default, will return both numerical and associa-
tive indices.
RETURN VALUES
An array indexed numerically (beginning with 0) or associatively (indexed by field name), or both. Each value in the array is represented
as a string. Database NULL values are returned as NULL.
FALSE is returned if $row exceeds the number of rows in the set, there are no more rows, or on any other error.
EXAMPLES
Example #1
pg_fetch_array(3) example
<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occurred.
";
exit;
}
$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
echo "An error occurred.
";
exit;
}
$arr = pg_fetch_array($result, 0, PGSQL_NUM);
echo $arr[0] . " <- Row 1 Author
";
echo $arr[1] . " <- Row 1 E-mail
";
// As of PHP 4.1.0, the row parameter is optional; NULL can be passed instead,
// to pass a result_type. Successive calls to pg_fetch_array will return the
// next row.
$arr = pg_fetch_array($result, NULL, PGSQL_ASSOC);
echo $arr["author"] . " <- Row 2 Author
";
echo $arr["email"] . " <- Row 2 E-mail
";
$arr = pg_fetch_array($result);
echo $arr["author"] . " <- Row 3 Author
";
echo $arr[1] . " <- Row 3 E-mail
";
?>
SEE ALSO pg_fetch_row(3), pg_fetch_object(3), pg_fetch_result(3).
PHP Documentation Group PG_FETCH_ARRAY(3)