CREATE TABLE Resources(
       internalId BIGSERIAL NOT NULL PRIMARY KEY,
       resourceType INTEGER NOT NULL,
       publicId VARCHAR(64) NOT NULL,
       parentId BIGINT REFERENCES Resources(internalId) ON DELETE CASCADE
       );

CREATE TABLE MainDicomTags(
       id BIGINT REFERENCES Resources(internalId) ON DELETE CASCADE,
       tagGroup INTEGER,
       tagElement INTEGER,
       value TEXT,
       PRIMARY KEY(id, tagGroup, tagElement)
       );

CREATE TABLE DicomIdentifiers(
       id BIGINT REFERENCES Resources(internalId) ON DELETE CASCADE,
       tagGroup INTEGER,
       tagElement INTEGER,
       value TEXT,
       PRIMARY KEY(id, tagGroup, tagElement)
       );