01-08-2014
Hi,
Consider a table column, which stores each page of a book in a seperate row.
Now, we have to save each of these rows(each page of a book) in a seperate unix file. We can use any naming convention.
Row 1 :- Page 1 of a book
Row 2 :- Page 2 of a book
.
.
.
Row n :- Page n of a book, where n is the number of rows.
Example:-
Query:-
select page_text from books;
Suppose, this query yields 1000 rows. Each row contains data in the below form:-
--------------------------------------
Row1:-
Rohan Bopanna and Aisam-ul-Haq Qureshi progressed to the semifinals of the Sydney International but Leander Paes failed to rescue his 2014 season from a poor start as he crashed out in the first round with Czech partner Radek Stepanek.
Bopanna and his Pakistani partner, seeded third, faced stiff resistance from Trat Huey of Philippines and Briton Dominic Inglot before prevailing 6-7(3) 7-6(5) 10-3 in the quarterfinals.
***********************
Row2:-
--------------------------------
They now face giant-killers Lukas Rosol and Joao Sousa, who dumped the top seeded American pair of Mike and Bob Bryan 3-6 6-3 14-12 in their quarterfinal.
For Paes, it has been a nightmarish start to the new season. At the Chennai Open, he did not get to play a single ball as his partner Fabio Fognini pulled out due to an injury.
***********************
Thanks
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LEARN ABOUT DEBIAN
alzabo::runtime::rowcursor
Alzabo::Runtime::RowCursor(3pm) User Contributed Perl Documentation Alzabo::Runtime::RowCursor(3pm)
NAME
Alzabo::Runtime::RowCursor - Cursor that returns "Alzabo::Runtime::Row" objects
SYNOPSIS
use Alzabo::Runtime::RowCursor;
my $cursor = $schema->table('foo')->all_rows;
while ( my $row = $cursor->next )
{
print $row->select('foo'), "
";
}
DESCRIPTION
Objects in this class are used to return "Alzabo::Runtime::Row" objects for queries. The cursor does not preload objects but creates them
on demand, which is much more efficient. For more details on the rational please see the RATIONALE FOR CURSORS section in Alzabo::Design.
INHERITS FROM
"Alzabo::Runtime::Cursor"
METHODS
next
Returns the next "Alzabo::Runtime::Row" object or undef if no more are available.
all_rows
Returns all the rows available from the current point onwards. This means that if there are five rows that will be returned when the
object is created and you call "next" twice, calling all_rows after it will only return three.
reset
Resets the cursor so that the next "next" call will return the first row of the set.
count
Returns the number of rows returned by the cursor so far.
next_as_hash
Return the next row in a hash, where the hash key is the table name and the hash value is the row object.
AUTHOR
Dave Rolsky, <autarch@urth.org>
perl v5.8.8 2007-12-23 Alzabo::Runtime::RowCursor(3pm)