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Manual Reference Pages  -  DBIX::SQLENGINE::DRIVER::INFORMIX (3)

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NAME

DBIx::SQLEngine::Driver::Informix - Support DBD::Informix and DBD::ODBC/Informix

CONTENTS

SYNOPSIS

<B>DBI WrapperB>: Adds methods to a DBI database handle.



  my $sqldb = DBIx::SQLEngine->new( dbi:Informix:test_data@my_server );



<B>Portability Subclasses:B> Uses driver’s idioms or emulation.



  $sqldb->do_insert(                          # use SERIAL column
    table => students, sequence => id,       
    values => { name=>Dave, age=>19, status=>minor },
  );



DESCRIPTION

This package provides a subclass of DBIx::SQLEngine which compensates for Informix’s idiosyncrasies.

    About Driver Subclasses

You do not need to use this package directly; when you connect to a database, the SQLEngine object is automatically re-blessed in to the appropriate subclass.

For more information about the underlying driver class, see DBD::Informix.

    Under Development

Note that this driver class has been added recently and not yet tested in real-world conditions.

To Do: Add missing functionality from related CPAN modules. See DBD::Informix::Summary, DBIx::SearchBuilder::Handle::Informix and maybe Dimedis::SqlDriver::Informix.

FETCHING DATA (SQL DQL)

    Methods Used By Complex Queries

sql_limit() Not yet supported. Perhaps we should use first $maxrows and throw out the first $offset?

EDITING DATA (SQL DML)

    Insert to Add Data

do_insert_with_sequence()


  $sqldb->do_insert_with_sequence( $sequence_name, %sql_clauses ) : $row_count



Implemented using _seq_do_insert_postfetch and seq_fetch_current.

seq_fetch_current()


  $sqldb->seq_fetch_current( ) : $current_value



Implemented using DBD::Informix’s ix_sqlerrd attribute.

Note that this doesn’t fetch the current sequence value for a given table, since it doesn’t respect the table and field arguments, but merely returns the last sequencial value created during this session.

DEFINING STRUCTURES (SQL DDL)

    Column Type Methods

dbms_create_column_types()


  $sqldb->dbms_create_column_types () : %column_type_codes



Implemented using Informix’s byte and SERIAL types.

dbms_create_column_text_long_type()


  $sqldb->dbms_create_column_text_long_type () : $col_type_str



Implemented using Informix’s text type.

ADVANCED CAPABILITIES

    Call, Create and Drop Stored Procedures

fetch_storedproc()


  $sqldb->fetch_storedproc( $proc_name, @arguments ) : $rows



Calls fetch_sql with execute procedure, the procedure name, and the arguments using placeholders.

do_storedproc()


  $sqldb->do_storedproc( $proc_name, @arguments ) : $row_count



Calls do_sql with execute procedure, the procedure name, and the arguments using placeholders.

create_storedproc()


  $sqldb->create_storedproc( $proc_name, $definition )



Calls do_sql with create procedure, the procedure name, and the definition.

drop_storedproc()


  $sqldb->drop_storedproc( $proc_name )



Calls do_sql with drop procedure and the procedure name.

SEE ALSO

See DBIx::SQLEngine for the overall interface and developer documentation.

See DBIx::SQLEngine::Docs::ReadMe for general information about this distribution, including installation and license information.

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perl v5.20.3 SQLENGINE::DRIVER::INFORMIX (3) 2004-11-18

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