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.\"
.IX Title "Data::Stream::Bulk::DBI 3pm"
.TH Data::Stream::Bulk::DBI 3pm "2021-01-01" "perl v5.32.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Data::Stream::Bulk::DBI \- N\-at\-a\-time iteration of DBI statement results.
.SH "VERSION"
.IX Header "VERSION"
version 0.11
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&        use Data::Stream::Bulk::DBI;
\&
\&        my $sth = $dbh\->prepare("SELECT hate FROM sql"); # very big resultset
\&        $sth\->execute;
\&
\&        return Data::Stream::Bulk::DBI\->new(
\&                sth => $sth,
\&                max_rows => $n, # how many at a time
\&                slice => [ ... ], # if you want to pass the first param to fetchall_arrayref
\&        );
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This implementation of Data::Stream::Bulk api works with \s-1DBI\s0 statement
handles, using \*(L"fetchall_arrayref\*(R" in \s-1DBI\s0.
.PP
It fetches \f(CW\*(C`max_rows\*(C'\fR at a time (defaults to 500).
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.IP "sth" 4
.IX Item "sth"
The statement handle to call \f(CW\*(C`fetchall_arrayref\*(C'\fR on.
.IP "slice" 4
.IX Item "slice"
Passed verbatim as the first param to \f(CW\*(C`fetchall_arrayref\*(C'\fR. Should usually be
\&\f(CW\*(C`undef\*(C'\fR, provided for completetness.
.IP "max_rows" 4
.IX Item "max_rows"
The second param to \f(CW\*(C`fetchall_arrayref\*(C'\fR. Controls the size of each buffer.
.Sp
Defaults to 500.
.SH "METHODS"
.IX Header "METHODS"
.IP "get_more" 4
.IX Item "get_more"
See Data::Stream::Bulk::DoneFlag.
.Sp
Calls \f(CW\*(C`fetchall_arrayref\*(C'\fR to get the next chunk of rows.
.IP "all" 4
.IX Item "all"
Calls \f(CW\*(C`fetchall_arrayref\*(C'\fR to get the raminder of the data (without specifying
\&\f(CW\*(C`max_rows\*(C'\fR).
.SH "AUTHOR"
.IX Header "AUTHOR"
Yuval Kogman <nothingmuch@woobling.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2012 by Yuval Kogman.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.