dbix::class::storage::dbi::sybase::microsoft_sql_server::nobindv(3) [mojave man page]
DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server:UseriContributed PerDBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars(3)NAME
DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars - Support for Microsoft SQL Server via DBD::Sybase without placeholders
SYNOPSIS
This subclass supports MSSQL server connections via DBD::Sybase when ? style placeholders are not available.
DESCRIPTION
If you are using this driver then your combination of DBD::Sybase and libraries (most likely FreeTDS) does not support ? style
placeholders.
This storage driver uses DBIx::Class::Storage::DBI::NoBindVars as a base. This means that bind variables will be interpolated (properly
quoted of course) into the SQL query itself, without using bind placeholders.
More importantly this means that caching of prepared statements is explicitly disabled, as the interpolation renders it useless.
In all other respects, it is a subclass of DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server.
AUTHOR
See "CONTRIBUTORS" in DBIx::Class.
LICENSE
You may distribute this code under the same terms as Perl itself.
perl v5.18.22013-07-DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars(3)
Check Out this Related Man Page
DBIx::Class::Storage::DBI::NoBindVars(3) User Contributed Perl Documentation DBIx::Class::Storage::DBI::NoBindVars(3)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 The return value is interpreted as: true - do not quote, false - do quote.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 v5.18.2 2013-07-12 DBIx::Class::Storage::DBI::NoBindVars(3)
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