SQL Portability - Data Types
 
 
- For raw information about data types supported by the driver:
- 
 
 $type_info_data = $dbh->type_info_all(…);
 
- To map data type codes to names:
- 
- 
 $sth = $dbh->prepare(“select foo, bar from tablename”);
 $sth->execute;
 for my $i (0 .. $sth->{NUM_OF_FIELDS}) {printf ”Column name %s: Column type name: %s”,    $sth->{NAME}->[$i],    $dbh->type_info( $sth->{TYPE} )->{TYPE_NAME};
 }
 
 
- To select the nearest type supported by the database:
- 
- 
 $my_date_type = $dbh->type_info( [ SQL_DATE, SQL_TIMESTAMP ] );
 $my_smallint_type = $dbh->type_info( [ SQL_SMALLINT, SQL_INTEGER, SQL_DECIMAL ] );