04-20-2011
If you are fetching using a bidirectional cursor, then you have to crawl back. If not, there is no going back. Maybe you should do more processing in a stored procedure inside mysql, where many quick adjustments are possible. Or, in a more formal language, where you can cache your rows in your choice of containers, and recall them at speed.
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Well , i have:
$ cat example.dat
1
2
3
4
5
$ cat getline3.awk
function getName (NOM)
{
printf "Enter a filename: "
getline NOM < "-" # get response
return NOM
}
BEGIN {
printf ("\nREP: %s\n",getName(N))
}
{print}
This example works fine: (2 Replies)
Discussion started by: Klashxx
2 Replies
2. Programming
It sure sounds like a simple request....
I need some C code that will enable me to fetch the IP address of the tty attached to the current process.
In short:
char *myIPAddress(void)
{
// somebody help me fill in this part!!
}
-BL:confused: (4 Replies)
Discussion started by: brianleahy
4 Replies
3. UNIX for Dummies Questions & Answers
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies
4. UNIX for Dummies Questions & Answers
while (my $row = $sth->fetchrow_arrayref) {
$var->{"@$row"}=" ";
}
Can anyone help me understanding above mentioned.
i) As per my knowledge $row is taking ARRAY Refernce from the database
ii) @$row is containing the value of 0th index of the array, testted the same.
but I am not able... (0 Replies)
Discussion started by: jaigs_27
0 Replies
5. Shell Programming and Scripting
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Discussion started by: shis100
7 Replies
6. UNIX for Dummies Questions & Answers
I'm trying to write a programme which scans strings to find how many vowels they contain. I get an error saying that I'm trying to compare a pointer and an integer inif(*v == scanme){. How can I overcome this ? Also, the programme seems to scan only the first word of a string e.g.: if I type "abc... (1 Reply)
Discussion started by: fakuse
1 Replies
7. UNIX for Dummies Questions & Answers
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies
8. Solaris
Hey there,
I joined this forum just now cause I need help with an old SUN machine at work. I work on a helpdesk and we use a SOLARIS 5.10 OS. Every once in a while we will try to move one of our windows out of the way to make room on the desktop, and sometimes the mouse doesn't release what we... (7 Replies)
Discussion started by: TRex_2005
7 Replies
9. Shell Programming and Scripting
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
LEARN ABOUT CENTOS
cgi::session::driver::mysql
CGI::Session::Driver::mysql(3) User Contributed Perl Documentation CGI::Session::Driver::mysql(3)
NAME
CGI::Session::Driver::mysql - CGI::Session driver for MySQL database
SYNOPSIS
$s = new CGI::Session( 'driver:mysql', $sid);
$s = new CGI::Session( 'driver:mysql', $sid, { DataSource => 'dbi:mysql:test',
User => 'sherzodr',
Password => 'hello' });
$s = new CGI::Session( 'driver:mysql', $sid, { Handle => $dbh } );
DESCRIPTION
mysql stores session records in a MySQL table. For details see CGI::Session::Driver::DBI, its parent class.
It's especially important for the MySQL driver that the session ID column be defined as a primary key, or at least "unique", like this:
CREATE TABLE sessions (
id CHAR(32) NOT NULL PRIMARY KEY,
a_session TEXT NOT NULL
);
To use different column names, change the 'create table' statement, and then simply do this:
$s = new CGI::Session('driver:mysql', undef,
{
TableName=>'session',
IdColName=>'my_id',
DataColName=>'my_data',
DataSource=>'dbi:mysql:project',
});
or
$s = new CGI::Session('driver:mysql', undef,
{
TableName=>'session',
IdColName=>'my_id',
DataColName=>'my_data',
Handle=>$dbh,
});
DRIVER ARGUMENTS
mysql driver supports all the arguments documented in CGI::Session::Driver::DBI. In addition, DataSource argument can optionally leave
leading "dbi:mysql:" string out:
$s = new CGI::Session( 'driver:mysql', $sid, {DataSource=>'shopping_cart'});
# is the same as:
$s = new CGI::Session( 'driver:mysql', $sid, {DataSource=>'dbi:mysql:shopping_cart'});
BACKWARDS COMPATIBILITY
As of V 4.30, the global variable $CGI::Session::MySQL::TABLE_NAME cannot be used to set the session table's name.
This is due to changes in CGI::Session::Driver's new() method, which now allows the table's name to be changed (as well as allowing both
the 'id' column name and the 'a_session' column name to be changed).
See the documentation for CGI::Session::Driver::DBI for details.
In particular, the new syntax for "new()" applies to all database drivers, whereas the old - and bad - global variable method only applied
to MySQL.
Alternately, call $session -> table_name('new_name') just after creating the session object if you wish to change the session table's name.
LICENSING
For support and licensing see CGI::Session.
perl v5.16.3 2008-07-16 CGI::Session::Driver::mysql(3)