dbix::class::storage::dbi::nobindvars(3pm) [debian man page]
DBIx::Class::Storage::DBI::NoBindVars(3pm) User Contributed Perl Documentation DBIx::Class::Storage::DBI::NoBindVars(3pm)NAME
DBIx::Class::Storage::DBI::NoBindVars - Sometime DBDs have poor to no support for bind variables
DESCRIPTION
This class allows queries to work when the DBD or underlying library does not support the usual "?" placeholders, or at least doesn't
support them very well, as is the case with DBD::Sybase
METHODS
connect_info
We can't cache very effectively without bind variables, so force the "disable_sth_caching" setting to be turned on when the connect info is
set.
_prep_for_execute
Manually subs in the values for the usual "?" placeholders.
interpolate_unquoted
This method is called by "_prep_for_execute" for every column in order to determine if its value should be quoted or not. The arguments are
the current column data type and the actual bind value. The return value is interpreted as: true - do not quote, false - do quote. You
should override this in you Storage::DBI::<database> subclass, if your RDBMS does not like quotes around certain datatypes (e.g. Sybase and
integer columns). The default method returns false, except for integer datatypes paired with values containing nothing but digits.
WARNING!!!
Always validate that the bind-value is valid for the current datatype.
Otherwise you may very well open the door to SQL injection attacks.
_prep_interpolated_value
Given a datatype and the value to be inserted directly into a SQL query, returns the necessary string to represent that value (by e.g.
adding a '$' sign)
AUTHORS
See "CONTRIBUTORS" in DBIx::Class
LICENSE
You may distribute this code under the same terms as Perl itself.
perl v5.14.2 2011-05-10 DBIx::Class::Storage::DBI::NoBindVars(3pm)
Check Out this Related Man Page
DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars(3pm) User Contributed Perl DocumentationDBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars(3pm)NAME
DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars - Storage::DBI subclass for Sybase ASE without placeholder support
DESCRIPTION
If you're using this driver then your version of Sybase or the libraries you use to connect to it do not support placeholders.
You can also enable this driver explicitly using:
my $schema = SchemaClass->clone;
$schema->storage_type('::DBI::Sybase::ASE::NoBindVars');
$schema->connect($dsn, $user, $pass, \%opts);
See the discussion in "Using ? Placeholders & bind parameters to $sth->execute" in DBD::Sybase for details on the pros and cons of using
placeholders.
One advantage of not using placeholders is that "select @@identity" will work for obtaining the last insert id of an "IDENTITY" column,
instead of having to do "select max(col)" in a transaction as the base Sybase driver does.
When using this driver, bind variables will be interpolated (properly quoted of course) into the SQL query itself, without using
placeholders.
The caching of prepared statements is also explicitly disabled, as the interpolation renders it useless.
AUTHORS
See "CONTRIBUTORS" in DBIx::Class.
LICENSE
You may distribute this code under the same terms as Perl itself.
perl v5.14.2 2010-06-03 DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars(3pm)
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
... (2 Replies)
Hi,
Just trying to get to grips with sed and awk for some reporting for work and I need some assistance:
I have a file that lists policy names on the first line and then on the second line whether the policy is active or not.
Policy Name: Policy1
Active: yes
Policy... (8 Replies)
version info :
vi availabe with RHEL 5.4
I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this?
Note:
The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want... (9 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello,
I couldn't find an actual introduction thread, so I decided to just put this here.
I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development... (2 Replies)
Hi guys...
The first active code line in AudioScope.sh is set -u .
This causes a complete exit if a variable is used/found but has not been allocated at the start of the program.
However, apart from writing code to do the task, is there a switch to to check which variables have been... (17 Replies)
Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
Here is a demo script that compares the awk and grep approaches for this single problem:
#!/usr/bin/env bash
# @(#) s2 Demonstrate group... (1 Reply)
Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
# file with header names of required columns in required order
headers_file=$2
# read contents... (11 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
Dear All,
Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community....
While the "current generation... (9 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)