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8 | |
8 | |
9 | my $st = sql_exec $DBH, "select ... where a = ?", $a; |
9 | my $st = sql_exec $DBH, "select ... where a = ?", $a; |
10 | |
10 | |
11 | local $DBH = <database handle>; |
11 | local $DBH = <database handle>; |
12 | my $st = sql_exec \my($bind_a, $bind_b), "select a,b ..."; |
12 | my $st = sql_exec \my($bind_a, $bind_b), "select a,b ..."; |
13 | my $st = sql_insertid |
13 | my $id = sql_insertid |
14 | sql_exec "insert into ... values (?, ?)", $v1, $v2; |
14 | sql_exec "insert into ... values (?, ?)", $v1, $v2; |
15 | my $a = sql_fetch "select a from ..."; |
15 | my $a = sql_fetch "select a from ..."; |
16 | sql_fetch \my($a, $b), "select a,b ..."; |
16 | sql_fetch \my($a, $b), "select a,b ..."; |
17 | |
17 | |
18 | sql_exists "table where name like 'a%'" |
18 | sql_exists "table where name like 'a%'" |
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39 | |
39 | |
40 | =cut |
40 | =cut |
41 | |
41 | |
42 | package PApp::SQL; |
42 | package PApp::SQL; |
43 | |
43 | |
|
|
44 | use Carp (); |
44 | use DBI (); |
45 | use DBI (); |
45 | |
46 | |
46 | BEGIN { |
47 | BEGIN { |
47 | use base qw(Exporter DynaLoader); |
48 | use base qw(Exporter DynaLoader); |
48 | |
49 | |
49 | $VERSION = 1.0; |
50 | $VERSION = '1.05'; |
50 | @EXPORT = qw( |
51 | @EXPORT = qw( |
51 | sql_exec sql_fetch sql_fetchall sql_exists sql_insertid $sql_exec |
52 | sql_exec sql_fetch sql_fetchall sql_exists sql_insertid $sql_exec |
52 | sql_uexec sql_ufetch sql_ufetchall sql_uexists |
53 | sql_uexec sql_ufetch sql_ufetchall sql_uexists |
53 | ); |
54 | ); |
54 | @EXPORT_OK = qw( |
55 | @EXPORT_OK = qw( |
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144 | |
145 | |
145 | # then connect anew |
146 | # then connect anew |
146 | $dbcache{$id} = |
147 | $dbcache{$id} = |
147 | eval { DBI->connect($dsn, $user, $pass, $flags) } |
148 | eval { DBI->connect($dsn, $user, $pass, $flags) } |
148 | || eval { DBI->connect($dsn, $user, $pass, $flags) } |
149 | || eval { DBI->connect($dsn, $user, $pass, $flags) } |
149 | || die "unable to connect to database $dsn: $DBI::errstr\n"; |
150 | || Carp::croak "unable to connect to database $dsn: $DBI::errstr\n"; |
150 | $connect->($dbcache{$id}) if $connect; |
151 | $connect->($dbcache{$id}) if $connect; |
151 | } |
152 | } |
152 | $dbcache{$id}; |
153 | $dbcache{$id}; |
153 | } |
154 | } |
154 | |
155 | |
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299 | |
300 | |
300 | mysql: first C<AUTO_INCREMENT> column set to NULL |
301 | mysql: first C<AUTO_INCREMENT> column set to NULL |
301 | postgres: C<oid> column (is there a way to get the last SERIAL?) |
302 | postgres: C<oid> column (is there a way to get the last SERIAL?) |
302 | sybase: C<IDENTITY> column of the last insert (slow) |
303 | sybase: C<IDENTITY> column of the last insert (slow) |
303 | informix: C<SERIAL> or C<SERIAL8> column of the last insert |
304 | informix: C<SERIAL> or C<SERIAL8> column of the last insert |
|
|
305 | sqlite: C<last_insert_rowid()> |
304 | |
306 | |
305 | Except for sybase, this does not require a server access. |
307 | Except for sybase, this does not require a server access. |
306 | |
308 | |
307 | =cut |
309 | =cut |
308 | |
310 | |
309 | sub sql_insertid($) { |
311 | sub sql_insertid($) { |
310 | my $sth = shift or die "sql_insertid requires a statement handle"; |
312 | my $sth = shift or Carp::croak "sql_insertid requires a statement handle"; |
311 | my $dbh = $sth->{Database}; |
313 | my $dbh = $sth->{Database}; |
312 | my $driver = $dbh->{Driver}{Name}; |
314 | my $driver = $dbh->{Driver}{Name}; |
313 | |
315 | |
314 | $driver eq "mysql" and return $sth->{mysql_insertid}; |
316 | $driver eq "mysql" and return $sth->{mysql_insertid}; |
315 | $driver eq "Pg" and return $sth->{pg_oid_status}; |
317 | $driver eq "Pg" and return $sth->{pg_oid_status}; |
316 | $driver eq "Sybase" and return sql_fetch($dbh, 'SELECT @@IDENTITY'); |
318 | $driver eq "Sybase" and return sql_fetch ($dbh, 'SELECT @@IDENTITY'); |
317 | $driver eq "Informix" and return $sth->{ix_sqlerrd}[1]; |
319 | $driver eq "Informix" and return $sth->{ix_sqlerrd}[1]; |
|
|
320 | $driver eq "SQLite" and return sql_fetch ($dbh, 'SELECT last_insert_rowid ()'); |
318 | |
321 | |
319 | die "sql_insertid does not spport the dbd driver '$driver', please see PApp::SQL::sql_insertid"; |
322 | Carp::croak "sql_insertid does not support the dbd driver '$driver', at"; |
320 | } |
323 | } |
321 | |
324 | |
322 | =item [old-size] = cachesize [new-size] |
325 | =item [old-size] = cachesize [new-size] |
323 | |
326 | |
324 | Returns (and possibly changes) the LRU cache size used by C<sql_exec>. The |
327 | Returns (and possibly changes) the LRU cache size used by C<sql_exec>. The |
… | |
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406 | |
409 | |
407 | sub checked_dbh($) { |
410 | sub checked_dbh($) { |
408 | my $dbh = $dbcache{$_[0][0]}; |
411 | my $dbh = $dbcache{$_[0][0]}; |
409 | $dbh && $dbh->ping |
412 | $dbh && $dbh->ping |
410 | ? $dbh |
413 | ? $dbh |
411 | : PApp::SQL::connect_cached((split /\x00/, $_[0][0]), $_[0][1], $_[0][2]); |
414 | : PApp::SQL::connect_cached((split /\x00/, $_[0][0], 4), $_[0][1], $_[0][2]); |
412 | } |
415 | } |
413 | |
416 | |
414 | =item $db->dsn |
417 | =item $db->dsn |
415 | |
418 | |
416 | Return the DSN (L<DBI>) fo the database object (e.g. for error messages). |
419 | Return the DSN (L<DBI>) fo the database object (e.g. for error messages). |