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Update to ora2pg 1.2.
This commit is contained in:
Bruce Momjian
@ -18,7 +18,7 @@ use vars qw($VERSION);
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use Carp qw(confess);
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use DBI;
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$VERSION = "1.1";
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$VERSION = "1.2";
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=head1 NAME
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@ -53,6 +53,50 @@ Ora2Pg - Oracle to PostgreSQL database schema converter
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exit(0);
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or if you only want to extract some tables:
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# Create an instance of the Ora2Pg perl module
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my @tables = ('tab1', 'tab2', 'tab3');
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my $schema = new Ora2Pg (
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datasource => $dbsrc, # Database DBD datasource
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user => $dbuser, # Database user
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password => $dbpwd, # Database password
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tables => \@tables, # Tables to extract
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debug => 1 # To show somethings when running
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);
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or if you only want to extract the 10 first tables:
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# Create an instance of the Ora2Pg perl module
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my $schema = new Ora2Pg (
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datasource => $dbsrc, # Database DBD datasource
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user => $dbuser, # Database user
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password => $dbpwd, # Database password
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max => 10 # 10 first tables to extract
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);
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or if you only want to extract tables 10 to 20:
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# Create an instance of the Ora2Pg perl module
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my $schema = new Ora2Pg (
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datasource => $dbsrc, # Database DBD datasource
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user => $dbuser, # Database user
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password => $dbpwd, # Database password
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min => 10 # Begin extraction at indice 10
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max => 20 # End extraction at indice 20
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);
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To know at which indices table can be found during extraction use the option:
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showtableid => 1
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To extract all views set the option type as follow:
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type => 'VIEW'
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Default is table schema extraction
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=head1 DESCRIPTION
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@ -79,11 +123,13 @@ the connection parameters to the Oracle database.
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Features must include:
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- database schema export (done)
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- grant export (done)
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- predefined function/trigger export (todo)
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- data export (todo)
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- sql query converter (todo)
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- Database schema export, with unique, primary and foreign key.
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- Grants/privileges export by user and group.
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- Indexes and unique indexes export.
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- Table or view selection (by name and max table) export.
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- Predefined function/trigger export (todo)
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- Data export (todo)
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- Sql query converter (todo)
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My knowledge regarding database is really poor especially for Oracle
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so contribution is welcome.
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@ -94,6 +140,7 @@ so contribution is welcome.
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You just need the DBI and DBD::Oracle perl module to be installed
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=head1 PUBLIC METHODS
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=head2 new HASH_OPTIONS
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@ -105,6 +152,12 @@ Supported options are:
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- datasource : DBD datasource (required)
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- user : DBD user (optional with public access)
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- password : DBD password (optional with public access)
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- type : Type of data to extract, can be TABLE (default) or VIEW
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- debug : Print the current state of the parsing
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- tables : Extract only the given tables (arrayref)
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- showtableid : Display only the table indice during extraction
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- min : Indice to begin extraction. Default to 0
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- max : Indice to end extraction. Default to 0 mean no limits
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Attempt that this list should grow a little more because all initialization is
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done by this way.
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@ -174,8 +227,31 @@ sub _init
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die "Error : $DBI::err ... $DBI::errstr\n";
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}
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$self->{debug} = 0;
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$self->{debug} = 1 if ($options{debug});
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$self->{limited} = ();
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$self->{limited} = $options{tables} if ($options{tables});
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$self->{min} = 0;
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$self->{min} = $options{min} if ($options{min});
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$self->{max} = 0;
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$self->{max} = $options{max} if ($options{max});
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$self->{showtableid} = 0;
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$self->{showtableid} = $options{showtableid} if ($options{showtableid});
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$self->{dbh}->{LongReadLen} = 0;
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#$self->{dbh}->{LongTrunkOk} = 1;
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# Retreive all table informations
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$self->_tables();
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if (!exists $options{type} || ($options{type} eq 'TABLE')) {
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$self->_tables();
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} else {
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$self->{dbh}->{LongReadLen} = 100000;
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$self->_views();
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}
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# Disconnect from the database
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$self->{dbh}->disconnect() if ($self->{dbh});
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@ -199,8 +275,9 @@ to the table_info key as array reference. In other way:
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$self->{tables}{$class_name}{table_info} = [(OWNER,TYPE)];
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TYPE Can be TABLE, VIEW, SYSTEM TABLE, GLOBAL TEMPORARY, LOCAL TEMPORARY,
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ALIAS, SYNONYM or a data source specific type identifier.
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DBI TYPE can be TABLE, VIEW, SYSTEM TABLE, GLOBAL TEMPORARY, LOCAL TEMPORARY,
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ALIAS, SYNONYM or a data source specific type identifier. This only extract
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TABLE type.
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It also get the following informations in the DBI object to affect the
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main hash of the database structure :
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@ -223,23 +300,46 @@ sub _tables
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my ($self) = @_;
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# Get all tables information given by the DBI method table_info
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print STDERR "Retrieving table information...\n" if ($self->{debug});
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my $sth = $self->{dbh}->table_info or die $self->{dbh}->errstr;
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my @tables_infos = $sth->fetchall_arrayref();
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if ($self->{showtableid}) {
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foreach my $table (@tables_infos) {
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for (my $i=0; $i<=$#{$table};$i++) {
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print STDERR "[", $i+1, "] ${$table}[$i]->[2]\n";
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}
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}
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return;
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}
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foreach my $table (@tables_infos) {
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# Set the table information for each class found
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my $i = 1;
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print STDERR "Min table dump set to $self->{min}.\n" if ($self->{debug} && $self->{min});
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print STDERR "Max table dump set to $self->{max}.\n" if ($self->{debug} && $self->{max});
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foreach my $t (@$table) {
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# usually OWNER,TYPE. QUALIFIER is omitted until
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# I know what to do with that
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# Jump to desired extraction
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next if (${@$t}[2] =~ /\$/);
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$i++, next if ($self->{min} && ($i < $self->{min}));
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last if ($self->{max} && ($i > $self->{max}));
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next if (($#{$self->{limited}} >= 0) && !grep(/^${@$t}[2]$/, @{$self->{limited}}));
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print STDERR "[$i] " if ($self->{max} || $self->{min});
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print STDERR "Scanning ${@$t}[2] (@$t)...\n" if ($self->{debug});
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# Check of uniqueness of the table
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if (exists $self->{tables}{${@$t}[2]}{field_name}) {
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print STDERR "Warning duplicate table ${@$t}[2], SYNONYME ? Skipped.\n";
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next;
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}
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# usually OWNER,TYPE. QUALIFIER is omitted until I know what to do with that
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$self->{tables}{${@$t}[2]}{table_info} = [(${@$t}[1],${@$t}[3])];
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# Set the fields information
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my $sth = $self->{dbh}->prepare("SELECT * FROM ${@$t}[1].${@$t}[2] WHERE 1=0");
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if (!defined($sth)) {
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$sth = $self->{dbh}->prepare("SELECT * FROM ${@$t}[1].${@$t}[2] WHERE 1=0");
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if (!defined($sth)) {
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warn "Can't prepare statement: $DBI::errstr";
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next;
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}
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warn "Can't prepare statement: $DBI::errstr";
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next;
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}
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$sth->execute;
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if ($sth->err) {
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@ -253,10 +353,67 @@ sub _tables
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@{$self->{tables}{${@$t}[2]}{primary_key}} = &_primary_key($self, ${@$t}[2]);
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@{$self->{tables}{${@$t}[2]}{unique_key}} = &_unique_key($self, ${@$t}[2]);
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@{$self->{tables}{${@$t}[2]}{foreign_key}} = &_foreign_key($self, ${@$t}[2]);
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($self->{tables}{${@$t}[2]}{uniqueness}, $self->{tables}{${@$t}[2]}{indexes}) = &_get_indexes($self, ${@$t}[2]);
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$self->{tables}{${@$t}[2]}{grants} = &_get_table_privilege($self, ${@$t}[2]);
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$i++;
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}
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}
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($self->{groups}, $self->{grants}) = &_get_privilege($self);
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print STDERR "Retrieving groups/users information...\n" if ($self->{debug});
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$self->{groups} = &_get_roles($self);
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}
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=head2 _views
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This function is used to retrieve all views information.
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Set the main hash of the views definition $self->{views}.
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Keys are the names of all views retrieved from the current
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database values are the text definition of the views.
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It then set the main hash as follow:
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# Definition of the view
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$self->{views}{$table}{text} = $view_infos{$table};
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# Grants defined on the views
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$self->{views}{$table}{grants} = when I find how...
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=cut
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sub _views
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{
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my ($self) = @_;
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# Get all views information
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print STDERR "Retrieving views information...\n" if ($self->{debug});
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my %view_infos = &_get_views($self);
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if ($self->{showtableid}) {
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my $i = 1;
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foreach my $table (sort keys %view_infos) {
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print STDERR "[$i] $table\n";
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$i++;
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}
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return;
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}
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print STDERR "Min view dump set to $self->{min}.\n" if ($self->{debug} && $self->{min});
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print STDERR "Max view dump set to $self->{max}.\n" if ($self->{debug} && $self->{max});
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my $i = 1;
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foreach my $table (sort keys %view_infos) {
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# Set the table information for each class found
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# Jump to desired extraction
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next if ($table =~ /\$/);
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$i++, next if ($self->{min} && ($i < $self->{min}));
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last if ($self->{max} && ($i > $self->{max}));
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next if (($#{$self->{limited}} >= 0) && !grep(/^$table$/, @{$self->{limited}}));
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print STDERR "[$i] " if ($self->{max} || $self->{min});
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print STDERR "Scanning $table...\n" if ($self->{debug});
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$self->{views}{$table}{text} = $view_infos{$table};
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$i++;
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}
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}
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@ -271,12 +428,29 @@ sub _get_sql_data
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{
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my ($self) = @_;
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my $sql_output = "-- Generated by Ora2Pg, the Oracle database Schema converter, version $VERSION\n";
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$sql_output .= "-- Copyright 2000 Gilles DAROLD. All rights reserved.\n";
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$sql_output .= "-- Author : <gilles\@darold.net>\n\n";
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my $sql_header = "-- Generated by Ora2Pg, the Oracle database Schema converter, version $VERSION\n";
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$sql_header .= "-- Copyright 2000 Gilles DAROLD. All rights reserved.\n";
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$sql_header .= "--\n";
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$sql_header .= "-- This program is free software; you can redistribute it and/or modify it under\n";
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$sql_header .= "-- the same terms as Perl itself.\n\n";
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my $sql_output = "";
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# Process view only
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if (exists $self->{views}) {
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foreach my $view (sort keys %{$self->{views}}) {
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$sql_output .= "CREATE VIEW $view AS $self->{views}{$view}{text};\n";
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}
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$sql_output .= "\n";
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return $sql_header . $sql_output;
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}
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my @groups = ();
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my @users = ();
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# Dump the database structure as an XML Schema defintion
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foreach my $table (keys %{$self->{tables}}) {
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print STDERR "Dumping table $table...\n" if ($self->{debug});
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# Can be: TABLE, VIEW, SYSTEM TABLE, GLOBAL TEMPORARY,
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$sql_output .= "CREATE ${$self->{tables}{$table}{table_info}}[1] \"\L$table\E\" (\n";
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my $sql_ukey = "";
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@ -295,7 +469,7 @@ sub _get_sql_data
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}
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if (${$f}[4] ne "") {
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$sql_output .= " DEFAULT ${$f}[4]";
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} elsif (!${$f}[3]) {
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} elsif (!${$f}[3] || (${$f}[3] eq 'N')) {
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$sql_output .= " NOT NULL";
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}
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# Set the unique key definition
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@ -310,8 +484,8 @@ sub _get_sql_data
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}
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$sql_ukey =~ s/,$//;
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$sql_pkey =~ s/,$//;
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$sql_output .= "\tCONSTRAINT uk\L$table\E UNIQUE ($sql_ukey),\n" if ($sql_ukey);
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$sql_output .= "\tCONSTRAINT pk\L$table\E PRIMARY KEY ($sql_pkey),\n" if ($sql_pkey);
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$sql_output .= "\tUNIQUE ($sql_ukey),\n" if ($sql_ukey);
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$sql_output .= "\tPRIMARY KEY ($sql_pkey),\n" if ($sql_pkey);
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# Add constraint definition
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foreach my $h (@{$self->{tables}{$table}{foreign_key}}) {
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@ -323,25 +497,49 @@ sub _get_sql_data
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my $destname = "$desttable";
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my $remote = "${${$h}{$link}{remote}}[$i]";
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my $local = "${${$h}{$link}{local}}[$i]";
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$sql_output .= "\tCONSTRAINT fk${i}_\L$table\E FOREIGN KEY ($local) REFERENCES $desttable ($remote),\n";
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$sql_output .= "\tCONSTRAINT ${i}_\L$table\E_fk FOREIGN KEY ($local) REFERENCES $desttable ($remote),\n";
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}
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}
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}
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$sql_output =~ s/,$//;
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$sql_output .= ");\n";
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foreach my $idx (keys %{$self->{tables}{$table}{indexes}}) {
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my $columns = join(',', @{$self->{tables}{$table}{indexes}{$idx}});
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my $unique = '';
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$unique = ' UNIQUE' if ($self->{tables}{$table}{uniqueness}{$idx} eq 'UNIQUE');
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$sql_output .= "CREATE$unique INDEX \L$idx\E ON \L$table\E (\L$columns\E);\n";
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}
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# Add grant on this table
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$sql_output .= "REVOKE ALL ON $table FROM PUBLIC;\n";
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foreach my $grp (keys %{$self->{tables}{$table}{grants}}) {
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if (exists $self->{groups}{$grp}) {
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$sql_output .= "GRANT " . join(',', @{$self->{tables}{$table}{grants}{$grp}}) . " ON $table TO GROUP $grp;\n";
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push(@groups, $grp) if (!grep(/^$grp$/, @groups));
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} else {
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$sql_output .= "GRANT " . join(',', @{$self->{tables}{$table}{grants}{$grp}}) . " ON $table TO $grp;\n";
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push(@users, $grp) if (!grep(/^$grp$/, @users));
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}
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}
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$sql_output .= "\n";
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}
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# Add privilege definition
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foreach my $role (keys %{$self->{groups}}) {
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$sql_output .= "CREATE GROUP $role;\n";
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$sql_output .= "ALTER GROUP $role ADD USERS " . join(',', @{$self->{groups}{$role}}) . ";\n";
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foreach my $grant (keys %{$self->{grants}{$role}}) {
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$sql_output .= "GRANT $grant ON " . join(',', @{$self->{grants}{$role}{$grant}}) . " TO GROUP $role;\n";
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print STDERR "Add groups/users privileges...\n" if ($self->{debug} && exists $self->{groups});
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my $grants = '';
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foreach my $role (@groups) {
|
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next if (!exists $self->{groups}{$role});
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$grants .= "CREATE GROUP $role;\n";
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$grants .= "ALTER GROUP $role ADD USERS " . join(',', @{$self->{groups}{$role}}) . ";\n";
|
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foreach my $u (@{$self->{groups}{$role}}) {
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push(@users, $u) if (!grep(/^$u$/, @users));
|
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}
|
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}
|
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foreach my $u (@users) {
|
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$sql_header .= "CREATE USER $u WITH PASSWORD 'secret';\n";
|
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}
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$sql_header .= "\n" . $grants . "\n";
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return $sql_output;
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return $sql_header . $sql_output;
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}
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||||
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@ -416,6 +614,11 @@ WHERE TABLE_NAME='$table'
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END
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$sth->execute or die $sth->errstr;
|
||||
my $data = $sth->fetchall_arrayref();
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if ($self->{debug}) {
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foreach my $d (@$data) {
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print STDERR "\t$d->[0] => type:$d->[1] , length:$d->[2] , nullable:$d->[3] , default:$d->[4]\n";
|
||||
}
|
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}
|
||||
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||||
return @$data;
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||||
|
||||
@ -544,27 +747,52 @@ END
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||||
}
|
||||
|
||||
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=head2 _get_privilege
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=head2 _get_table_privilege TABLE
|
||||
|
||||
This function implements a Oracle-native tables grants
|
||||
This function implements a Oracle-native table grants
|
||||
information.
|
||||
|
||||
Return a hash of all groups (roles) with associated users
|
||||
and a hash of arrays of all grants on related tables.
|
||||
Return a hash of array of all users and their grants on the
|
||||
given table.
|
||||
|
||||
=cut
|
||||
|
||||
sub _get_privilege
|
||||
sub _get_table_privilege
|
||||
{
|
||||
my($self, $table) = @_;
|
||||
|
||||
my @pg_grants = ('DELETE','INSERT','SELECT','UPDATE');
|
||||
|
||||
# Retrieve all ROLES defined in this database
|
||||
my $str = "SELECT GRANTEE, PRIVILEGE FROM DBA_TAB_PRIVS WHERE TABLE_NAME='$table' ORDER BY GRANTEE, PRIVILEGE";
|
||||
my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
|
||||
$sth->execute or die $sth->errstr;
|
||||
my %data = ();
|
||||
while (my $row = $sth->fetch) {
|
||||
push(@{$data{$row->[0]}}, $row->[1]) if (grep(/$row->[1]/, @pg_grants));
|
||||
}
|
||||
|
||||
return \%data;
|
||||
}
|
||||
|
||||
|
||||
=head2 _get_roles
|
||||
|
||||
This function implements a Oracle-native roles/users
|
||||
information.
|
||||
|
||||
Return a hash of all groups (roles) as an array of associated users.
|
||||
|
||||
=cut
|
||||
|
||||
sub _get_roles
|
||||
{
|
||||
my($self) = @_;
|
||||
|
||||
# Retrieve all ROLES defined in this database
|
||||
my $sth = $self->{dbh}->prepare(<<END) or die $self->{dbh}->errstr;
|
||||
SELECT
|
||||
ROLE
|
||||
FROM DBA_ROLES
|
||||
ORDER BY ROLE
|
||||
END
|
||||
my $str = "SELECT ROLE FROM DBA_ROLES ORDER BY ROLE";
|
||||
my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
|
||||
|
||||
$sth->execute or die $sth->errstr;
|
||||
my @roles = ();
|
||||
while (my $row = $sth->fetch) {
|
||||
@ -572,35 +800,115 @@ END
|
||||
}
|
||||
|
||||
# Get all users associated to these roles
|
||||
my %data = ();
|
||||
my %groups = ();
|
||||
foreach my $r (@roles) {
|
||||
my $str = "SELECT GRANTEE FROM DBA_ROLE_PRIVS WHERE GRANTED_ROLE='$r' AND GRANTEE IN (SELECT USERNAME FROM DBA_USERS)";
|
||||
my $str = "SELECT GRANTEE FROM DBA_ROLE_PRIVS WHERE GRANTEE <> 'SYS' AND GRANTEE <> 'SYSTEM' AND GRANTED_ROLE='$r' AND GRANTEE IN (SELECT USERNAME FROM DBA_USERS)";
|
||||
$sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
|
||||
$sth->execute or die $sth->errstr;
|
||||
my @users = ();
|
||||
while (my $row = $sth->fetch) {
|
||||
next if ($row->[0] eq 'SYSTEM');
|
||||
push(@users, $row->[0]);
|
||||
}
|
||||
# Don't process roles relatives to DBA
|
||||
next if (grep(/^DBSNMP$/, @users));
|
||||
next if (grep(/^SYS$/, @users));
|
||||
|
||||
$groups{$r} = \@users;
|
||||
|
||||
$str = "SELECT PRIVILEGE,TABLE_NAME FROM DBA_TAB_PRIVS WHERE GRANTEE='$r'";
|
||||
$sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
|
||||
$sth->execute or die $sth->errstr;
|
||||
my @grants = ();
|
||||
while (my $row = $sth->fetch) {
|
||||
push(@{$data{$r}{"${@$row}[0]"}}, ${@$row}[1]);
|
||||
}
|
||||
$groups{$r} = \@users if ($#users >= 0);
|
||||
}
|
||||
|
||||
return \%groups, \%data;
|
||||
return \%groups;
|
||||
}
|
||||
|
||||
|
||||
=head2 _get_indexes TABLE
|
||||
|
||||
This function implements a Oracle-native indexes
|
||||
information.
|
||||
|
||||
Return an array of all indexes name which are not primary keys
|
||||
for the given table.
|
||||
|
||||
Note: Indexes name must be created like this tablename_fieldname
|
||||
else they will not be retrieved or if tablename false in the output
|
||||
fieldname.
|
||||
|
||||
=cut
|
||||
|
||||
sub _get_indexes
|
||||
{
|
||||
my($self, $table) = @_;
|
||||
|
||||
# Retrieve all indexes
|
||||
my $str = "SELECT DISTINCT DBA_IND_COLUMNS.INDEX_NAME, DBA_IND_COLUMNS.COLUMN_NAME, DBA_INDEXES.UNIQUENESS FROM DBA_IND_COLUMNS, DBA_INDEXES WHERE DBA_IND_COLUMNS.TABLE_NAME='$table' AND DBA_INDEXES.INDEX_NAME=DBA_IND_COLUMNS.INDEX_NAME AND DBA_IND_COLUMNS.INDEX_NAME NOT IN (SELECT CONSTRAINT_NAME FROM ALL_CONSTRAINTS WHERE TABLE_NAME='$table')";
|
||||
my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
|
||||
$sth->execute or die $sth->errstr;
|
||||
|
||||
my %data = ();
|
||||
my %unique = ();
|
||||
while (my $row = $sth->fetch) {
|
||||
$unique{$row->[0]} = $row->[2];
|
||||
push(@{$data{$row->[0]}}, $row->[1]);
|
||||
}
|
||||
|
||||
return \%unique, \%data;
|
||||
}
|
||||
|
||||
|
||||
=head2 _get_sequences TABLE
|
||||
|
||||
This function implements a Oracle-native sequence
|
||||
information.
|
||||
|
||||
Return a hash of array of sequence name with MIN_VALUE, MAX_VALUE,
|
||||
INCREMENT and LAST_NUMBER for the given table.
|
||||
|
||||
Not working yet.
|
||||
|
||||
=cut
|
||||
|
||||
sub _get_sequences
|
||||
{
|
||||
my($self, $table) = @_;
|
||||
|
||||
# Retrieve all indexes
|
||||
my $str = "SELECT SEQUENCE_NAME, MIN_VALUE, MAX_VALUE, INCREMENT_BY, LAST_NUMBER FROM DBA_SEQUENCES WHERE SEQUENCE_OWNER <> 'SYS' AND SEQUENCE_OWNER <> 'SYSTEM'";
|
||||
my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
|
||||
$sth->execute or die $sth->errstr;
|
||||
|
||||
my %data = ();
|
||||
while (my $row = $sth->fetch) {
|
||||
# next if ($row->[0] !~ /${table}_/);
|
||||
# push(@data, $row->[0]);
|
||||
}
|
||||
|
||||
return %data;
|
||||
}
|
||||
|
||||
|
||||
=head2 _get_views
|
||||
|
||||
This function implements a Oracle-native views information.
|
||||
|
||||
Return a hash of array of sequence name with MIN_VALUE, MAX_VALUE,
|
||||
INCREMENT and LAST_NUMBER for the given table.
|
||||
|
||||
=cut
|
||||
|
||||
sub _get_views
|
||||
{
|
||||
my($self) = @_;
|
||||
|
||||
# Retrieve all views
|
||||
my $str = "SELECT VIEW_NAME,TEXT FROM DBA_VIEWS WHERE OWNER <> 'SYS' AND OWNER <> 'SYSTEM'";
|
||||
my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
|
||||
$sth->execute or die $sth->errstr;
|
||||
|
||||
my %data = ();
|
||||
while (my $row = $sth->fetch) {
|
||||
$data{$row->[0]} = $row->[1];
|
||||
}
|
||||
|
||||
return %data;
|
||||
}
|
||||
|
||||
|
||||
|
||||
1;
|
||||
|
||||
__END__
|
||||
|
||||
Reference in New Issue
Block a user