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/*
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* xmltables.sql -- Create or replace tables for storing XML in the db
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*
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* Purpose: creates tables needed for XML database
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*
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* Created: 12 September 1999
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* Author: Matt Jones
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* Organization: National Center for Ecological Analysis and Synthesis
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* For Details: http://www.nceas.ucsb.edu/
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* File Info: '$Id: xmltables.sql 414 2000-08-28 18:38:27Z bojilova $'
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*
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*/
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/*
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* Drop all of the objects in proper order
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*/
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set echo off
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DROP SEQUENCE xml_nodes_id_seq;
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DROP SEQUENCE xml_revisions_id_seq;
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DROP SEQUENCE xml_catalog_id_seq;
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DROP TRIGGER xml_revisions_before_insert;
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DROP TRIGGER xml_catalog_before_insert;
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DROP TABLE xml_index;
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DROP TABLE xml_catalog;
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DROP TABLE xml_access;
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DROP TABLE xml_revisions;
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DROP TABLE xml_documents;
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DROP TABLE xml_nodes;
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DROP TABLE xml_acc_numbers;
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/*
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* Nodes -- table to store XML Nodes (both elements and attributes)
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*/
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CREATE TABLE xml_nodes (
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nodeid NUMBER(20), -- the unique node id (pk)
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nodeindex NUMBER(10), -- order of nodes within parent
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nodetype VARCHAR2(20), -- type (DOCUMENT, COMMENT, PI,
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-- ELEMENT, ATTRIBUTE, TEXT)
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nodename VARCHAR2(250), -- the name of an element or attribute
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nodedata VARCHAR2(4000), -- the data for this node (e.g.,
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-- for TEXT it is the content)
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parentnodeid NUMBER(20), -- index of the parent of this node
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rootnodeid NUMBER(20), -- index of the root node of this tree
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docid VARCHAR2(250), -- index to the document id
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date_created DATE,
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date_updated DATE,
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CONSTRAINT xml_nodes_pk PRIMARY KEY (nodeid),
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CONSTRAINT xml_nodes_root_fk
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FOREIGN KEY (rootnodeid) REFERENCES xml_nodes,
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CONSTRAINT xml_nodes_parent_fk
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FOREIGN KEY (parentnodeid) REFERENCES xml_nodes
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);
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CREATE SEQUENCE xml_nodes_id_seq;
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/*
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* Documents -- table to store XML documents
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*/
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CREATE TABLE xml_documents (
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docid VARCHAR2(250), -- the document id #
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rootnodeid NUMBER(20), -- reference to root node of the DOM
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docname VARCHAR2(100), -- usually the root element name
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doctype VARCHAR2(100), -- public id indicating document type
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doctitle VARCHAR2(1000), -- title of document if exists
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user_owner VARCHAR2(100), -- the user owned the document
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user_updated VARCHAR2(100), -- the user updated the document
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date_created DATE,
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date_updated DATE,
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public_access NUMBER(1), -- flag for public access
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CONSTRAINT xml_documents_pk PRIMARY KEY (docid),
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CONSTRAINT xml_documents_root_fk
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FOREIGN KEY (rootnodeid) REFERENCES xml_nodes
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);
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/*
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* ACL -- table to store ACL for XML documents by principals
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*/
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CREATE TABLE xml_access (
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docid VARCHAR2(250), -- the document id #
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principal_name VARCHAR2(100), -- name of user, user group, etc.
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principal_type VARCHAR2(20), -- like "user", "group", etc.
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access_type NUMBER(1), -- "read", "write", "all"
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begin_time DATE, -- the time that access permission begins
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end_time DATE, -- the time that access permission ends
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CONSTRAINT xml_access_pk UNIQUE (docid, principal_name, principal_type, access_type, begin_time),
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CONSTRAINT xml_access_docid_fk
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FOREIGN KEY (docid) REFERENCES xml_documents,
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CONSTRAINT xml_access_ck CHECK (begin_time < end_time)
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);
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/*
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* Revised Documents -- table to store XML documents saved after an UPDATE
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* or DELETE
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*/
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CREATE TABLE xml_revisions (
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revisionid NUMBER(20), -- the revision number we are saving
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docid VARCHAR2(250), -- the document id #
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rootnodeid NUMBER(20), -- reference to root node of the DOM
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docname VARCHAR2(100), -- usually the root element name
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doctype VARCHAR2(100), -- public id indicating document type
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doctitle VARCHAR2(1000), -- title of document if exists
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user_owner VARCHAR2(100),
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user_updated VARCHAR2(100),
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date_created DATE,
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date_updated DATE,
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CONSTRAINT xml_revisions_pk PRIMARY KEY (revisionid),
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CONSTRAINT xml_revisions_root_fk
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FOREIGN KEY (rootnodeid) REFERENCES xml_nodes
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);
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CREATE SEQUENCE xml_revisions_id_seq;
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CREATE TRIGGER xml_revisions_before_insert
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BEFORE INSERT ON xml_revisions FOR EACH ROW
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BEGIN
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SELECT xml_revisions_id_seq.nextval
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INTO :new.revisionid
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FROM dual;
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END;
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/
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/*
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* XML Catalog -- table to store all external sources for XML documents
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*/
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CREATE TABLE xml_catalog (
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catalog_id NUMBER(20), -- the id for this catalog entry
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entry_type VARCHAR2(500), -- the type of this catalog entry
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-- (e.g., DTD, XSD, XSL)
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source_doctype VARCHAR2(500), -- the source public_id for transforms
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target_doctype VARCHAR2(500), -- the target public_id for transforms
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public_id VARCHAR2(500), -- the unique id for this type
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system_id VARCHAR2(1000), -- the local location of the object
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CONSTRAINT xml_catalog_pk PRIMARY KEY (catalog_id)
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-- CONSTRAINT xml_catalog_uk UNIQUE (entry_type, source_doctype, target_doctype, public_id)
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);
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CREATE SEQUENCE xml_catalog_id_seq;
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CREATE TRIGGER xml_catalog_before_insert
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BEFORE INSERT ON xml_catalog FOR EACH ROW
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BEGIN
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SELECT xml_catalog_id_seq.nextval
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INTO :new.catalog_id
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FROM dual;
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END;
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/
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/*
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* Index of Nodes -- table to store precomputed paths through tree for
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* quick searching in structured searches
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*/
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CREATE TABLE xml_index (
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nodeid NUMBER(20), -- the unique node id
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path VARCHAR2(200), -- precomputed path through tree
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docid VARCHAR2(250), -- index to the document id
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doctype VARCHAR2(100), -- public id indicating document type
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CONSTRAINT xml_index_pk PRIMARY KEY (nodeid,path),
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CONSTRAINT xml_index_nodeid_fk FOREIGN KEY (nodeid) REFERENCES xml_nodes,
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CONSTRAINT xml_index_docid_fk
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FOREIGN KEY (docid) REFERENCES xml_documents
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);
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/*
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* Index of the paths in xml_index
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*/
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CREATE INDEX xml_index_idx1 ON xml_index (path);
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/*
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* table to store unique Accession # for every document in 2 parts
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*/
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CREATE TABLE xml_acc_numbers (
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global_name VARCHAR2(32), -- first part of acc #
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local_id NUMBER(20), -- second part - unique in global name
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CONSTRAINT xml_acc_numbers_pk PRIMARY KEY (global_name, local_id)
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);
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