1Data::Stream::Bulk::DBIU(s3e)r Contributed Perl DocumentaDtaitoan::Stream::Bulk::DBI(3)
2
3
4

NAME

6       Data::Stream::Bulk::DBI - N-at-a-time iteration of DBI statement
7       results.
8

VERSION

10       version 0.11
11

SYNOPSIS

13               use Data::Stream::Bulk::DBI;
14
15               my $sth = $dbh->prepare("SELECT hate FROM sql"); # very big resultset
16               $sth->execute;
17
18               return Data::Stream::Bulk::DBI->new(
19                       sth => $sth,
20                       max_rows => $n, # how many at a time
21                       slice => [ ... ], # if you want to pass the first param to fetchall_arrayref
22               );
23

DESCRIPTION

25       This implementation of Data::Stream::Bulk api works with DBI statement
26       handles, using "fetchall_arrayref" in DBI.
27
28       It fetches "max_rows" at a time (defaults to 500).
29

ATTRIBUTES

31       sth The statement handle to call "fetchall_arrayref" on.
32
33       slice
34           Passed verbatim as the first param to "fetchall_arrayref". Should
35           usually be "undef", provided for completetness.
36
37       max_rows
38           The second param to "fetchall_arrayref". Controls the size of each
39           buffer.
40
41           Defaults to 500.
42

METHODS

44       get_more
45           See Data::Stream::Bulk::DoneFlag.
46
47           Calls "fetchall_arrayref" to get the next chunk of rows.
48
49       all Calls "fetchall_arrayref" to get the raminder of the data (without
50           specifying "max_rows").
51

AUTHOR

53       Yuval Kogman <nothingmuch@woobling.org>
54
56       This software is copyright (c) 2012 by Yuval Kogman.
57
58       This is free software; you can redistribute it and/or modify it under
59       the same terms as the Perl 5 programming language system itself.
60
61
62
63perl v5.30.1                      2020-01-29        Data::Stream::Bulk::DBI(3)
Impressum