SQL::Translator::Parser::Oracle - parser for Oracle
Index
Code Index:
NAME
SQL::Translator::Parser::Oracle - parser for Oracle
SYNOPSIS
use SQL::Translator;
use SQL::Translator::Parser::Oracle;
my $translator = SQL::Translator->new;
$translator->parser("SQL::Translator::Parser::Oracle");
DESCRIPTION
From http://www.ss64.com/ora/table_c.html:
CREATE [GLOBAL TEMPORARY] TABLE [schema.]table (tbl_defs,...)
[ON COMMIT {DELETE|PRESERVE} ROWS]
[storage_options | CLUSTER cluster_name (col1, col2,... )
| ORGANIZATION {HEAP [storage_options]
| INDEX idx_organized_tbl_clause}]
[LOB_storage_clause][varray_clause][nested_storage_clause]
partitioning_options
[[NO]CACHE] [[NO]MONITORING] [PARALLEL parallel_clause]
[ENABLE enable_clause | DISABLE disable_clause]
[AS subquery]
tbl_defs:
column datatype [DEFAULT expr] [column_constraint(s)]
table_ref_constraint
storage_options:
PCTFREE int
PCTUSED int
INITTRANS int
MAXTRANS int
STORAGE storage_clause
TABLESPACE tablespace
[LOGGING|NOLOGGING]
idx_organized_tbl_clause:
storage_option(s) [PCTTHRESHOLD int]
[COMPRESS int|NOCOMPRESS]
[ [INCLUDING column_name] OVERFLOW [storage_option(s)] ]
nested_storage_clause:
NESTED TABLE nested_item STORE AS storage_table
[RETURN AS {LOCATOR|VALUE} ]
partitioning_options:
Partition_clause {ENABLE|DISABLE} ROW MOVEMENT
Column Constraints
(http://www.ss64.com/ora/clause_constraint_col.html)
CONSTRAINT constrnt_name {UNIQUE|PRIMARY KEY} constrnt_state
CONSTRAINT constrnt_name CHECK(condition) constrnt_state
CONSTRAINT constrnt_name [NOT] NULL constrnt_state
CONSTRAINT constrnt_name REFERENCES [schema.]table[(column)]
[ON DELETE {CASCADE|SET NULL}] constrnt_state
constrnt_state
[[NOT] DEFERRABLE] [INITIALLY {IMMEDIATE|DEFERRED}]
[RELY | NORELY] [USING INDEX using_index_clause]
[ENABLE|DISABLE] [VALIDATE|NOVALIDATE]
[EXCEPTIONS INTO [schema.]table]
Note that probably not all of the above syntax is supported, but the grammar
was altered to better handle the syntax created by DDL::Oracle.
AUTHOR
Ken Youens-Clark <kclark@cpan.org>.
SEE ALSO
SQL::Translator, Parse::RecDescent, DDL::Oracle.
package SQL::Translator::Parser::Oracle;
# -------------------------------------------------------------------
# Copyright (C) 2002-2009 SQLFairy Authors
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307 USA
# -------------------------------------------------------------------
use strict;
use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
$VERSION = '1.59';
$DEBUG = 0 unless defined $DEBUG;
use Data::Dumper;
use Parse::RecDescent;
use Exporter;
use base qw(Exporter);
@EXPORT_OK = qw(parse);
# Enable warnings within the Parse::RecDescent module.
$::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error
$::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c.
$::RD_HINT = 1; # Give out hints to help fix problems.
$GRAMMAR = q`
{ my ( %tables, %indices, %constraints, $table_order, @table_comments, %views, $view_order, %procedures, $proc_order ) }
#
# The "eofile" rule makes the parser fail if any "statement" rule
# fails. Otherwise, the first successful match by a "statement"
# won't cause the failure needed to know that the parse, as a whole,
# failed. -ky
#
startrule : statement(s) eofile
{
$return = {
tables => \%tables,
indices => \%indices,
constraints => \%constraints,
views => \%views,
procedures => \%procedures,
};
}
eofile : /^\Z/
statement : remark
| run
| prompt
| create
| table_comment
| comment_on_table
| comment_on_column
| alter
| drop
| <error>
alter : /alter/i WORD /[^;]+/ ';'
{ @table_comments = () }
drop : /drop/i TABLE ';'
drop : /drop/i WORD(s) ';'
{ @table_comments = () }
create : create_table table_name '(' create_definition(s /,/) ')' table_option(s?) ';'
{
my $table_name = $item{'table_name'};
$tables{ $table_name }{'order'} = ++$table_order;
$tables{ $table_name }{'table_name'} = $table_name;
if ( @table_comments ) {
$tables{ $table_name }{'comments'} = [ @table_comments ];
@table_comments = ();
}
my $i = 1;
my @constraints;
for my $definition ( @{ $item[4] } ) {
if ( $definition->{'type'} eq 'field' ) {
my $field_name = $definition->{'name'};
$tables{ $table_name }{'fields'}{ $field_name } =
{ %$definition, order => $i };
$i++;
for my $constraint ( @{ $definition->{'constraints'} || [] } ) {
$constraint->{'fields'} = [ $field_name ];
push @{ $tables{ $table_name }{'constraints'} },
$constraint;
}
}
elsif ( $definition->{'type'} eq 'constraint' ) {
$definition->{'type'} = $definition->{'constraint_type'};
push @{ $tables{ $table_name }{'constraints'} }, $definition;
}
else {
push @{ $tables{ $table_name }{'indices'} }, $definition;
}
}
for my $option ( @{ $item[6] } ) {
push @{ $tables{ $table_name }{'table_options'} }, $option;
}
1;
}
create : create_index index_name /on/i table_name index_expr table_option(?) ';'
{
my $table_name = $item[4];
if ( $item[1] ) {
push @{ $constraints{ $table_name } }, {
name => $item[2],
type => 'unique',
fields => $item[5],
};
}
else {
push @{ $indices{ $table_name } }, {
name => $item[2],
type => 'normal',
fields => $item[5],
};
}
}
index_expr: parens_word_list
{ $item[1] }
| '(' WORD parens_word_list ')'
{
my $arg_list = join(",", @{$item[3]});
$return = "$item[2]($arg_list)";
}
create : /create/i /or replace/i /procedure/i table_name not_end m#^/$#im
{
@table_comments = ();
my $proc_name = $item[4];
# Hack to strip owner from procedure name
$proc_name =~ s#.*\.##;
my $owner = '';
my $sql = "$item[1] $item[2] $item[3] $item[4] $item[5]";
$procedures{ $proc_name }{'order'} = ++$proc_order;
$procedures{ $proc_name }{'name'} = $proc_name;
$procedures{ $proc_name }{'owner'} = $owner;
$procedures{ $proc_name }{'sql'} = $sql;
}
not_end: m#.*?(?=^/$)#ism
create : /create/i /or replace/i /force/i /view/i table_name not_delimiter ';'
{
@table_comments = ();
my $view_name = $item[5];
# Hack to strip owner from view name
$view_name =~ s#.*\.##;
my $sql = "$item[1] $item[2] $item[3] $item[4] $item[5] $item[6] $item[7]";
$views{ $view_name }{'order'} = ++$view_order;
$views{ $view_name }{'name'} = $view_name;
$views{ $view_name }{'sql'} = $sql;
}
not_delimiter: /.*?(?=;)/is
# Create anything else (e.g., domain, function, etc.)
create : ...!create_table ...!create_index /create/i WORD /[^;]+/ ';'
{ @table_comments = () }
create_index : /create/i UNIQUE(?) /index/i
{ $return = @{$item[2]} }
index_name : NAME '.' NAME
{ $item[3] }
| NAME
{ $item[1] }
global_temporary: /global/i /temporary/i
table_name : NAME '.' NAME
{ $item[3] }
| NAME
{ $item[1] }
create_definition : table_constraint
| field
| <error>
table_comment : comment
{
my $comment = $item[1];
$return = $comment;
push @table_comments, $comment;
}
comment : /^\s*(?:#|-{2}).*\n/
{
my $comment = $item[1];
$comment =~ s/^\s*(#|-{2})\s*//;
$comment =~ s/\s*$//;
$return = $comment;
}
comment : /\/\*/ /[^\*]+/ /\*\//
{
my $comment = $item[2];
$comment =~ s/^\s*|\s*$//g;
$return = $comment;
}
remark : /^REM\s+.*\n/
run : /^(RUN|\/)\s+.*\n/
prompt : /prompt/i /(table|index|sequence|trigger)/i ';'
prompt : /prompt\s+create\s+.*\n/i
comment_on_table : /comment/i /on/i /table/i table_name /is/i comment_phrase ';'
{
push @{ $tables{ $item{'table_name'} }{'comments'} }, $item{'comment_phrase'};
}
comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';'
{
my $table_name = $item[4]->{'table'};
my $field_name = $item[4]->{'field'};
push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} },
$item{'comment_phrase'};
}
column_name : NAME '.' NAME
{ $return = { table => $item[1], field => $item[3] } }
comment_phrase : /'.*?'/
{
my $val = $item[1];
$val =~ s/^'|'$//g;
$return = $val;
}
field : comment(s?) field_name data_type field_meta(s?) comment(s?)
{
my ( $is_pk, $default, @constraints );
my $null = 1;
for my $meta ( @{ $item[4] } ) {
if ( $meta->{'type'} eq 'default' ) {
$default = $meta;
next;
}
elsif ( $meta->{'type'} eq 'not_null' ) {
$null = 0;
next;
}
elsif ( $meta->{'type'} eq 'primary_key' ) {
$is_pk = 1;
}
push @constraints, $meta if $meta->{'supertype'} eq 'constraint';
}
my @comments = ( @{ $item[1] }, @{ $item[5] } );
$return = {
type => 'field',
name => $item{'field_name'},
data_type => $item{'data_type'}{'type'},
size => $item{'data_type'}{'size'},
null => $null,
default => $default->{'value'},
is_primary_key => $is_pk,
constraints => [ @constraints ],
comments => [ @comments ],
}
}
| <error>
field_name : NAME
data_type : ora_data_type data_size(?)
{
$return = {
type => $item[1],
size => $item[2][0] || '',
}
}
data_size : '(' VALUE(s /,/) data_size_modifier(?) ')'
{ $item[2] }
data_size_modifier: /byte/i
| /char/i
column_constraint : constraint_name(?) column_constraint_type constraint_state(s?)
{
my $desc = $item{'column_constraint_type'};
my $type = $desc->{'type'};
my $fields = $desc->{'fields'} || [];
my $expression = $desc->{'expression'} || '';
$return = {
supertype => 'constraint',
name => $item{'constraint_name(?)'}[0] || '',
type => $type,
expression => $type eq 'check' ? $expression : '',
deferrable => $desc->{'deferrable'},
deferred => $desc->{'deferred'},
reference_table => $desc->{'reference_table'},
reference_fields => $desc->{'reference_fields'},
# match_type => $desc->{'match_type'},
# on_update => $desc->{'on_update'},
}
}
constraint_name : /constraint/i NAME { $item[2] }
column_constraint_type : /not\s+null/i { $return = { type => 'not_null' } }
| /unique/i
{ $return = { type => 'unique' } }
| /primary\s+key/i
{ $return = { type => 'primary_key' } }
| /check/i check_expression
{
$return = {
type => 'check',
expression => $item[2],
};
}
| /references/i table_name parens_word_list(?) on_delete(?)
{
$return = {
type => 'foreign_key',
reference_table => $item[2],
reference_fields => $item[3][0],
# match_type => $item[4][0],
on_delete => $item[5][0],
}
}
LPAREN : '('
RPAREN : ')'
check_condition_text : /.+\s+in\s+\([^)]+\)/i
| /[^)]+/
check_expression : LPAREN check_condition_text RPAREN
{ $return = join( ' ', map { $_ || () }
$item[1], $item[2], $item[3], $item[4][0] )
}
constraint_state : deferrable { $return = { type => $item[1] } }
| deferred { $return = { type => $item[1] } }
| /(no)?rely/i { $return = { type => $item[1] } }
# | /using/i /index/i using_index_clause
# { $return = { type => 'using_index', index => $item[3] } }
| /(dis|en)able/i { $return = { type => $item[1] } }
| /(no)?validate/i { $return = { type => $item[1] } }
| /exceptions/i /into/i table_name
{ $return = { type => 'exceptions_into', table => $item[3] } }
deferrable : /not/i /deferrable/i
{ $return = 'not_deferrable' }
| /deferrable/i
{ $return = 'deferrable' }
deferred : /initially/i /(deferred|immediate)/i { $item[2] }
ora_data_type :
/(n?varchar2|varchar)/i { $return = 'varchar2' }
|
/n?char/i { $return = 'character' }
|
/n?dec/i { $return = 'decimal' }
|
/number/i { $return = 'number' }
|
/integer/i { $return = 'integer' }
|
/(pls_integer|binary_integer)/i { $return = 'integer' }
|
/interval\s+day/i { $return = 'interval day' }
|
/interval\s+year/i { $return = 'interval year' }
|
/long\s+raw/i { $return = 'long raw' }
|
/(long|date|timestamp|raw|rowid|urowid|mlslabel|clob|nclob|blob|bfile|float|double)/i { $item[1] }
parens_value_list : '(' VALUE(s /,/) ')'
{ $item[2] }
parens_word_list : '(' WORD(s /,/) ')'
{ $item[2] }
field_meta : default_val
| column_constraint
default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
{
my $val = $item[2];
$val =~ s/'//g if defined $val;
$return = {
supertype => 'constraint',
type => 'default',
value => $val,
}
}
| /null/i
{
$return = {
supertype => 'constraint',
type => 'default',
value => 'NULL',
}
}
create_table : /create/i global_temporary(?) /table/i
table_option : /organization/i WORD
{
$return = { 'ORGANIZATION' => $item[2] }
}
table_option : /nomonitoring/i
{
$return = { 'NOMONITORING' => undef }
}
table_option : /parallel/i '(' key_value(s) ')'
{
$return = { 'PARALLEL' => $item[3] }
}
key_value : WORD VALUE
{
$return = { $item[1], $item[2] }
}
table_option : /[^;]+/
table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) constraint_state(s?) comment(s?)
{
my $desc = $item{'table_constraint_type'};
my $type = $desc->{'type'};
my $fields = $desc->{'fields'};
my $expression = $desc->{'expression'};
my @comments = ( @{ $item[1] }, @{ $item[-1] } );
$return = {
name => $item{'constraint_name(?)'}[0] || '',
type => 'constraint',
constraint_type => $type,
fields => $type ne 'check' ? $fields : [],
expression => $type eq 'check' ? $expression : '',
deferrable => $item{'deferrable(?)'},
deferred => $item{'deferred(?)'},
reference_table => $desc->{'reference_table'},
reference_fields => $desc->{'reference_fields'},
# match_type => $desc->{'match_type'}[0],
on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
comments => [ @comments ],
}
}
table_constraint_type : /primary key/i '(' NAME(s /,/) ')'
{
$return = {
type => 'primary_key',
fields => $item[3],
}
}
|
/unique/i '(' NAME(s /,/) ')'
{
$return = {
type => 'unique',
fields => $item[3],
}
}
|
/check/i check_expression /^(en|dis)able/i
{
$return = {
type => 'check',
expression => join(' ', $item[2], $item[3]),
}
}
|
/foreign key/i '(' NAME(s /,/) ')' /references/i table_name parens_word_list(?) on_delete(?)
{
$return = {
type => 'foreign_key',
fields => $item[3],
reference_table => $item[6],
reference_fields => $item[7][0],
# match_type => $item[8][0],
on_delete => $item[8][0],
# on_update => $item[9][0],
}
}
on_delete : /on delete/i WORD(s)
{ join(' ', @{$item[2]}) }
UNIQUE : /unique/i { $return = 1 }
WORD : /\w+/
NAME : /\w+/ { $item[1] }
TABLE : /table/i
VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
{ $item[1] }
| /'.*?'/ # XXX doesn't handle embedded quotes
{ $item[1] }
| /NULL/
{ 'NULL' }
`;
# -------------------------------------------------------------------
sub parse {
my ( $translator, $data ) = @_;
my $parser = Parse::RecDescent->new($GRAMMAR);
local $::RD_TRACE = $translator->trace ? 1 : undef;
local $DEBUG = $translator->debug;
unless (defined $parser) {
return $translator->error("Error instantiating Parse::RecDescent ".
"instance: Bad grammer");
}
my $result = $parser->startrule( $data );
die "Parse failed.\n" unless defined $result;
if ( $DEBUG ) {
warn "Parser results =\n", Dumper($result), "\n";
}
my $schema = $translator->schema;
my $indices = $result->{'indices'};
my $constraints = $result->{'constraints'};
my @tables = sort {
$result->{'tables'}{ $a }{'order'}
<=>
$result->{'tables'}{ $b }{'order'}
} keys %{ $result->{'tables'} };
for my $table_name ( @tables ) {
my $tdata = $result->{'tables'}{ $table_name };
next unless $tdata->{'table_name'};
my $table = $schema->add_table(
name => $tdata->{'table_name'},
comments => $tdata->{'comments'},
) or die $schema->error;
$table->options( $tdata->{'table_options'} );
my @fields = sort {
$tdata->{'fields'}->{$a}->{'order'}
<=>
$tdata->{'fields'}->{$b}->{'order'}
} keys %{ $tdata->{'fields'} };
for my $fname ( @fields ) {
my $fdata = $tdata->{'fields'}{ $fname };
my $field = $table->add_field(
name => $fdata->{'name'},
data_type => $fdata->{'data_type'},
size => $fdata->{'size'},
default_value => $fdata->{'default'},
is_auto_increment => $fdata->{'is_auto_inc'},
is_nullable => $fdata->{'null'},
comments => $fdata->{'comments'},
) or die $table->error;
}
push @{ $tdata->{'indices'} }, @{ $indices->{ $table_name } || [] };
push @{ $tdata->{'constraints'} },
@{ $constraints->{ $table_name } || [] };
for my $idata ( @{ $tdata->{'indices'} || [] } ) {
my $index = $table->add_index(
name => $idata->{'name'},
type => uc $idata->{'type'},
fields => $idata->{'fields'},
) or die $table->error;
}
for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
my $constraint = $table->add_constraint(
name => $cdata->{'name'},
type => $cdata->{'type'},
fields => $cdata->{'fields'},
expression => $cdata->{'expression'},
reference_table => $cdata->{'reference_table'},
reference_fields => $cdata->{'reference_fields'},
match_type => $cdata->{'match_type'} || '',
on_delete => $cdata->{'on_delete'}
|| $cdata->{'on_delete_do'},
on_update => $cdata->{'on_update'}
|| $cdata->{'on_update_do'},
) or die $table->error;
}
}
my @procedures = sort {
$result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
} keys %{ $result->{procedures} };
foreach my $proc_name (@procedures) {
$schema->add_procedure(
name => $proc_name,
owner => $result->{procedures}->{$proc_name}->{owner},
sql => $result->{procedures}->{$proc_name}->{sql},
);
}
my @views = sort {
$result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
} keys %{ $result->{views} };
foreach my $view_name (keys %{ $result->{views} }) {
$schema->add_view(
name => $view_name,
sql => $result->{views}->{$view_name}->{sql},
);
}
return 1;
}
1;
# -------------------------------------------------------------------
# Something there is that doesn't love a wall.
# Robert Frost
# -------------------------------------------------------------------