Hi,
haven't found anything about this through searching, so may be a new topic:
when doing this:
set -o nounset
set -o errexit
find . -name "*.lib" | while read library; do
echo ${libary}
done
echo "after while"
I expect the script to exit within the while loop (because of nounset and... (6 Replies)
Hi all,
Im using a script which contains read command.. the script works perfectly but when I alias the script it gave "undifined variable" after I enter the read command input (variable)...
Does any one know why ? (4 Replies)
Below script cuts date part from the date entered by the user.
#!/bin/csh
echo 'Enter date in the format dd/mm/yyyy'
read DATE
DD=`echo $DATE | cut -c1-2`
echo $DD;
when debug with -x option , it works perfectly but without -x doesnot.:confused:
$ sh -x unix_12.sh
+ echo Enter... (2 Replies)
Hello group,
Still fairly new at the whole scripting thing so be gentle. I'm trying to write a simple script that archives my log files into a master log broken into weeks of the year.
My script runs fine up till the "cat" lines which I get a undefined or illegal variable name error. But... (2 Replies)
hi there
I have this C shell script that was migrated from AIX to Linux, could someone please help me, I checked the syntax numerous times but I can't find out where the error is. The script is meant to find files older than 27 days and delete it
#!/usr/bin/csh
#
... (22 Replies)
Hi,
i am a beginner in ubuntu. my default shell is bash. everytime i try to change the shell with command "csh", i get a message (probably an error message). after i get into c-shell, when i try to execute a c shellscript, then it showed the same message. any idea about what is this about or any... (1 Reply)
Hello,
I'm new here. I test these expressions's value in my script :
(in centOS 6 )
#!/bin/bash
array='something'
echo "############"
echo ${array}
echo ${array}
echo ${array}
echo "############"
The output result is :
#################
something
something
#################... (5 Replies)
I am getting the error undefined variable even after following these steps
#read name
abcd
#echo $name
na: undefined variable (6 Replies)
Discussion started by: Vishawdeep
6 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)