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Manual Reference Pages  -  DBIX::SQLENGINE::DRIVER::TRAIT::PERLDBLIB (3)

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NAME

DBIx::SQLEngine::Driver::Trait::PerlDBLib - For use with SQL::Statement

CONTENTS

SYNOPSIS



  # Classes can import this behavior if theyre based on SQL::Statement
  use DBIx::SQLEngine::Driver::Trait::PerlDBLib :all;



DESCRIPTION

This package works with DBD drivers which are implemented in Perl using SQL::Statement. It combines several other traits and methods which can be shared by most such drivers.

    About Driver Traits

You do not need to use this package directly; it is used internally by those driver subclasses which need it.

For more information about Driver Traits, see About Driver Traits in DBIx::SQLEngine::Driver.

REFERENCE

The following methods are provided:

    fetch_one_value

Special handling for simple functions. Allows select count(), max(), or min(), but only if that is the only value being returned.

    sql_limit

Adds support for SQL select limit clause.

TODO: Needs workaround to support offset.

    do_insert_with_sequence



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



Implemented using DBIx::SQLEngine::Driver::Trait::NoSequences.

    detect_any



  $sqldb->detect_any ( )  : $boolean



Returns 1, as we presume that the requisite driver modules are available or we wouldn’t have reached this point.

    sql_detect_any

This should not be called. Throws fatal exception.

    sql_create_columns



  $sqldb->sql_create_columns( $column, $fragment_array_ref ) : $sql_fragment



Generates the SQL fragment to define a column in a create table statement.

Overridden to <B>notB> produce PRIMARY KEY ( foo ) clauses for the primary key.

    dbms_create_column_types



  $sqldb->dbms_create_column_types () : %column_type_codes



Implemented using the standard int and varchar types.

    dbms_create_column_text_long_type



  $sqldb->dbms_create_column_text_long_type () : $col_type_str



Implemented using the standard varchar type.

    dbms_select_table_as_unsupported



  $sqldb->dbms_select_table_as_unsupported () : 1



Capability Limitation: This driver does not support table aliases such as select * from foo as bar.

    dbms_column_types_unsupported



  $sqldb->dbms_column_types_unsupported () : 1



Capability Limitation: This driver does not store column type information.

    dbms_indexes_unsupported



  $sqldb-> dbms_indexes_unsupported () : 1



Capability Limitation: This driver does not support indexes.

    dbms_storedprocs_unsupported



  $sqldb-> dbms_storedprocs_unsupported () : 1



Capability Limitation: This driver does not support stored procedures.

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.

See DBIx::Sequence for another version of the sequence-table functionality, which greatly inspired this module.

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perl v5.20.3 SQLENGINE::DRIVER::TRAIT::PERLDBLIB (3) 2004-11-13

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