NAME
Bio::DB::DBI::Oracle - DESCRIPTION of Object
SYNOPSIS
Give standard usage here
DESCRIPTION
Describe the object here
FEEDBACK
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AUTHOR - Hilmar Lapp
Email hlapp at gmx.net
Describe contact details here
CONTRIBUTORS
Additional contributors names and emails here
APPENDIX
The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _
new
Title : new
Usage : my $obj = new Bio::DB::DBI::Oracle();
Function: Builds a new Bio::DB::DBI::Oracle object using the passed named
parameters.
Returns : an instance of Bio::DB::DBI::Oracle
Args : named parameters with tags -dbcontext (a Bio::DB::DBContextI
implementing object) and -sequence_name (the name of the sequence
for PK generation)
next_id_value
Title : next_id_value
Usage : $pk = $obj->next_id_value();
Function:
Example :
Returns : a value suitable for use as a primary key
Args : The database connection handle to use for retrieving the
next primary key value.
Optionally, the name of the primary key generating
sequence. If omitted, the value returned by sequence_name()
will be used.
last_id_value
Title : last_id_value
Usage :
Function: Returns the last unique primary key value
allocated. Depending on the argument and the driver, the
value may be specific to a table, or independent of the
table.
This implementation does not need to know the table.
Example :
Returns : a value suitable for use as a primary key
Args : The database connection handle to use for retrieving the primary
key from the last insert.
Optionally, the name of the primary key generating
sequence. If omitted, the value returned by sequence_name()
will be used.
ifnull_sqlfunc
Title : nvl_sqlfunc
Usage :
Function: Get the name of the SQL function that takes two arguments
and returns the first if it is not null, and the second
otherwise.
Most RDBMSs will have such a function, but unfortunately
the naming is different between them. E.g., in MySQL the
name is IFNULL(), whereas in Oracle it is NVL().
Example :
Returns : the name of the function as a string, without parentheses
Args : none
build_dsn
Title : build_dsn
Usage :
Function: Constructs the DSN string from the DBContextI object. Since this
may be driver-specific, specific implementations may need to
override this method.
Example :
Returns : a string (the DSN)
Args : a Bio::DB::DBContextI implementing object