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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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* Version: '$Id: xmltables.sql 81 2000-05-05 21:09:23Z 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_entity_id_seq;
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DROP SEQUENCE xml_documents_id_seq;
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DROP TRIGGER xml_nodes_before_insert;
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DROP TRIGGER xml_documents_before_insert;
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DROP TRIGGER xml_cat_entities_before_insert;
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DROP TABLE xml_catalog_entities;
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DROP TABLE xml_catalog;
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DROP TABLE xml_documents;
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DROP TABLE xml_nodes;
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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),
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parentnodeid NUMBER(20),
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nodeindex NUMBER(10),
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nodetype VARCHAR2(20),
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nodename VARCHAR2(100),
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nodedata VARCHAR2(4000),
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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_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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CREATE TRIGGER xml_nodes_before_insert
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BEFORE INSERT ON xml_nodes FOR EACH ROW
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BEGIN
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SELECT xml_nodes_id_seq.nextval
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INTO :new.nodeid
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FROM dual;
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END;
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/
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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 NUMBER(20),
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rootnodeid NUMBER(20),
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docname VARCHAR2(100),
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doctype VARCHAR2(100),
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date_created DATE,
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date_updated DATE,
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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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CREATE SEQUENCE xml_documents_id_seq;
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CREATE TRIGGER xml_documents_before_insert
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BEFORE INSERT ON xml_documents FOR EACH ROW
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BEGIN
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SELECT xml_documents_id_seq.nextval
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INTO :new.docid
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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 -- tables to store all external sources for XML documents
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*/
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CREATE TABLE xml_catalog (
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doctype VARCHAR2(100),
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date_created DATE,
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date_updated DATE,
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CONSTRAINT xml_catalog_pk PRIMARY KEY (doctype)
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);
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CREATE TABLE xml_catalog_entities (
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entity_id NUMBER(20),
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entity_name VARCHAR2(100),
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entity_type VARCHAR2(20),
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source_doctype VARCHAR2(100),
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target_doctype VARCHAR2(100),
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public_id VARCHAR2(100),
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system_id VARCHAR2(1000),
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date_created DATE,
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date_updated DATE,
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CONSTRAINT xml_catalog_entities_pk PRIMARY KEY (entity_id),
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CONSTRAINT xml_catalog_entities_uk UNIQUE (entity_type, source_doctype, target_doctype, public_id),
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CONSTRAINT xml_source_catalog_fk FOREIGN KEY (source_doctype) REFERENCES xml_catalog,
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CONSTRAINT xml_target_catalog_fk FOREIGN KEY (target_doctype) REFERENCES xml_catalog
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);
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CREATE SEQUENCE xml_entity_id_seq;
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CREATE TRIGGER xml_cat_entities_before_insert
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BEFORE INSERT ON xml_catalog_entities FOR EACH ROW
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BEGIN
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SELECT xml_entity_id_seq.nextval
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INTO :new.entity_id
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FROM dual;
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END;
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/
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