I am trying to reference a two dimensional array in a
subroutine and can't seem to figure this one out in Perl.
Does anybody know? Please enlighten me.
#!/usr/bin/perl -w
use constant DIM => 4;
sub Shift_elements_right{
my (@Input, @Output) = @_;
for ($i = 0 ; $i <= DIM ;... (5 Replies)
I am going to develop a address book using the shell scripting commands without sed, awk, .... I am thinking to apply the concept of 2 dimenstional array. Can I create a two dimensional array for the insertion/updation/deletion of record in unix. If yes then tell me plz or recommend me some... (1 Reply)
I am trying to implementing two dimensinal array in ksh script.Would you pls help me out.
I have a large size of file, File contains looks like
ID SID VLAUE1 VALUE2 TOTALVALUE
1 a1 01 02 03
1 b1 02 05 07 ... (2 Replies)
Hi All,
I'm writing a nagios check that will see if our ldap servers are in sync...
I got the status data into a nested array, I would like to search key of each array and if "OK" is NOT present, echo other key=>values in the current array to a variable
so...eg...let take the single array... (1 Reply)
I cant get out of this while loop at the beginning of my program. Just reading from stdin one char at a time and storing it into a multi-array. Need to fix it with in two hours.
#include <sys/wait.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include... (1 Reply)
Hi.
I have a problem with passing two dimensional array to a function.
First, let me show my code to explain what i am going to do:
I have function:void initialize_board(char board);which is supposed to modify content of passed array. I have read here: Question 6.18 how such arrays should be... (3 Replies)
Hello, all
For a 1-dimensional array, such as
myarr_1=1
myarr_1=2
myarr_1=3I know I can write a loop as below to show the array member one by one:
for (i in myarr_1){print i, myarr_1}Now, suppose I have a two dimensional array such as:
myarray_2=1 myarray_2=2
myarray_2=10 myarray_2=20My... (3 Replies)
I have an array of names. Each one of the name, has a number represented to it.
For example A has an ID 8, B has an ID 2.
What I am after is a for loop that when the array is in position 1, a particular variable is set to the value of position 1 in array 2
declare -a arr=("A" "B" "C"... (6 Replies)
Hi,
I have a 10*10 two dimensional array. How do I assign value to all it's 100 elements at once? I don't want to open two for loops and assign one by one.
Thanks,
Shuri (1 Reply)
Discussion started by: shurimano
1 Replies
LEARN ABOUT PHP
pg_field_is_null
PG_FIELD_IS_NULL(3)PG_FIELD_IS_NULL(3)pg_field_is_null - Test if a field is SQL NULLSYNOPSIS
int pg_field_is_null (resource $result, int $row, mixed $field)
DESCRIPTION
int pg_field_is_null (resource $result, mixed $field)
pg_field_is_null(3) tests if a field in a PostgreSQL result resource is SQL NULL or not.
Note
This function used to be called pg_fieldisnull(3).
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, current row is fetched.
o $field
- Field number (starting from 0) as an integer or the field name as a string.
RETURN VALUES
Returns 1 if the field in the given row is SQL NULL, 0 if not. FALSE is returned if the row is out of range, or upon any other error.
EXAMPLES
Example #1
pg_field_is_null(3) example
<?php
$dbconn = pg_connect("dbname=publisher") or die ("Could not connect");
$res = pg_query($dbconn, "select * from authors where author = 'Orwell'");
if ($res) {
if (pg_field_is_null($res, 0, "year") == 1) {
echo "The value of the field year is null.
";
}
if (pg_field_is_null($res, 0, "year") == 0) {
echo "The value of the field year is not null.
";
}
}
?>
PHP Documentation Group PG_FIELD_IS_NULL(3)