calibre/resources/metadata_sqlite.sql

CREATE TABLE authors ( id   INTEGER PRIMARY KEY,
                              name TEXT NOT NULL COLLATE NOCASE,
                              sort TEXT COLLATE NOCASE,
                              UNIQUE(name)
                             );
CREATE TABLE books ( id      INTEGER PRIMARY KEY AUTOINCREMENT,
                             title     TEXT NOT NULL DEFAULT 'Unknown' COLLATE NOCASE,
                             sort      TEXT COLLATE NOCASE,
                             timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
                             uri       TEXT,
                             series_index INTEGER NOT NULL DEFAULT 1,
                             author_sort TEXT COLLATE NOCASE,
                             isbn TEXT DEFAULT "" COLLATE NOCASE,
                             path TEXT NOT NULL DEFAULT ""
                        );
CREATE TABLE books_authors_link ( id INTEGER PRIMARY KEY,
                                          book INTEGER NOT NULL,
                                          author INTEGER NOT NULL,
                                          UNIQUE(book, author)
                                        );
CREATE TABLE books_publishers_link ( id INTEGER PRIMARY KEY,
                                          book INTEGER NOT NULL,
                                          publisher INTEGER NOT NULL,
                                          UNIQUE(book)
                                        );
CREATE TABLE books_ratings_link ( id INTEGER PRIMARY KEY,
                                          book INTEGER NOT NULL,
                                          rating INTEGER NOT NULL,
                                          UNIQUE(book, rating)
                                        );
CREATE TABLE books_series_link ( id INTEGER PRIMARY KEY,
                                          book INTEGER NOT NULL,
                                          series INTEGER NOT NULL,
                                          UNIQUE(book)
                                        );
CREATE TABLE books_tags_link ( id INTEGER PRIMARY KEY,
                                          book INTEGER NOT NULL,
                                          tag INTEGER NOT NULL,
                                          UNIQUE(book, tag)
                                        );
CREATE TABLE comments ( id INTEGER PRIMARY KEY,
                              book INTEGER NON NULL,
                              text TEXT NON NULL COLLATE NOCASE,
                              UNIQUE(book)
                            );
CREATE TABLE conversion_options ( id INTEGER PRIMARY KEY,
                                          format TEXT NOT NULL COLLATE NOCASE,
                                          book INTEGER,
                                          data BLOB NOT NULL,
                                          UNIQUE(format,book)
                                        );
CREATE TABLE feeds ( id   INTEGER PRIMARY KEY,
                              title TEXT NOT NULL,
                              script TEXT NOT NULL,
                              UNIQUE(title)
                             );
CREATE TABLE publishers ( id   INTEGER PRIMARY KEY,
                                  name TEXT NOT NULL COLLATE NOCASE,
                                  sort TEXT COLLATE NOCASE,
                                  UNIQUE(name)
                             );
CREATE TABLE ratings ( id   INTEGER PRIMARY KEY,
                               rating INTEGER CHECK(rating > -1 AND rating < 11),
                               UNIQUE (rating)
                             );
CREATE TABLE series ( id   INTEGER PRIMARY KEY,
                              name TEXT NOT NULL COLLATE NOCASE,
                              sort TEXT COLLATE NOCASE,
                              UNIQUE (name)
                             );
CREATE TABLE tags ( id   INTEGER PRIMARY KEY,
                            name TEXT NOT NULL COLLATE NOCASE,
                            UNIQUE (name)
                             );
CREATE TABLE data ( id     INTEGER PRIMARY KEY,
                            book   INTEGER NON NULL,
                            format TEXT NON NULL COLLATE NOCASE,
                            uncompressed_size INTEGER NON NULL,
                            name TEXT NON NULL,
                            UNIQUE(book, format)
);

CREATE VIEW meta AS
    SELECT id, title,
           (SELECT concat(name) FROM authors WHERE authors.id IN (SELECT author from books_authors_link WHERE book=books.id)) authors,
           (SELECT name FROM publishers WHERE publishers.id IN (SELECT publisher from books_publishers_link WHERE book=books.id)) publisher,
           (SELECT rating FROM ratings WHERE ratings.id IN (SELECT rating from books_ratings_link WHERE book=books.id)) rating,
           timestamp,
           (SELECT MAX(uncompressed_size) FROM data WHERE book=books.id) size,
           (SELECT concat(name) FROM tags WHERE tags.id IN (SELECT tag from books_tags_link WHERE book=books.id)) tags,
           (SELECT text FROM comments WHERE book=books.id) comments,
           (SELECT name FROM series WHERE series.id IN (SELECT series FROM books_series_link WHERE book=books.id)) series,
           series_index,
           sort,
           author_sort,
           (SELECT concat(format) FROM data WHERE data.book=books.id) formats,
           isbn
    FROM books;
CREATE INDEX authors_idx ON books (author_sort COLLATE NOCASE);
CREATE INDEX books_authors_link_aidx ON books_authors_link (author);
CREATE INDEX books_authors_link_bidx ON books_authors_link (book);
CREATE INDEX books_idx ON books (sort COLLATE NOCASE);
CREATE INDEX books_publishers_link_aidx ON books_publishers_link (publisher);
CREATE INDEX books_publishers_link_bidx ON books_publishers_link (book);
CREATE INDEX books_ratings_link_aidx ON books_ratings_link (rating);
CREATE INDEX books_ratings_link_bidx ON books_ratings_link (book);
CREATE INDEX books_series_link_aidx ON books_series_link (series);
CREATE INDEX books_series_link_bidx ON books_series_link (book);
CREATE INDEX books_tags_link_aidx ON books_tags_link (tag);
CREATE INDEX books_tags_link_bidx ON books_tags_link (book);
CREATE INDEX comments_idx ON comments (book);
CREATE INDEX conversion_options_idx_a ON conversion_options (format COLLATE NOCASE);
CREATE INDEX conversion_options_idx_b ON conversion_options (book);
CREATE INDEX data_idx ON data (book);
CREATE INDEX publishers_idx ON publishers (name COLLATE NOCASE);
CREATE INDEX series_idx ON series (sort COLLATE NOCASE);
CREATE INDEX tags_idx ON tags (name COLLATE NOCASE);
CREATE TRIGGER books_delete_trg
        AFTER DELETE ON books
        BEGIN
            DELETE FROM books_authors_link WHERE book=OLD.id;
            DELETE FROM books_publishers_link WHERE book=OLD.id;
            DELETE FROM books_ratings_link WHERE book=OLD.id;
            DELETE FROM books_series_link WHERE book=OLD.id;
            DELETE FROM books_tags_link WHERE book=OLD.id;
            DELETE FROM data WHERE book=OLD.id;
            DELETE FROM comments WHERE book=OLD.id;
            DELETE FROM conversion_options WHERE book=OLD.id;
        END;
CREATE TRIGGER books_insert_trg
        AFTER INSERT ON books
        BEGIN
          UPDATE books SET sort=title_sort(NEW.title) WHERE id=NEW.id;
        END;
CREATE TRIGGER books_update_trg
        AFTER UPDATE ON books
        BEGIN
          UPDATE books SET sort=title_sort(NEW.title) WHERE id=NEW.id;
        END;
CREATE TRIGGER fkc_comments_insert
        BEFORE INSERT ON comments
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_comments_update
        BEFORE UPDATE OF book ON comments
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_data_insert
        BEFORE INSERT ON data
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_data_update
        BEFORE UPDATE OF book ON data
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_delete_books_authors_link
        BEFORE DELETE ON authors
        BEGIN
            SELECT CASE
                WHEN (SELECT COUNT(id) FROM books_authors_link WHERE book=OLD.book) > 0
                THEN RAISE(ABORT, 'Foreign key violation: author is still referenced')
            END;
        END;
CREATE TRIGGER fkc_delete_books_publishers_link
        BEFORE DELETE ON publishers
        BEGIN
            SELECT CASE
                WHEN (SELECT COUNT(id) FROM books_publishers_link WHERE book=OLD.book) > 0
                THEN RAISE(ABORT, 'Foreign key violation: publisher is still referenced')
            END;
        END;
CREATE TRIGGER fkc_delete_books_series_link
        BEFORE DELETE ON series
        BEGIN
            SELECT CASE
                WHEN (SELECT COUNT(id) FROM books_series_link WHERE series=OLD.id) > 0
                THEN RAISE(ABORT, 'Foreign key violation: series is still referenced')
            END;
        END;
CREATE TRIGGER fkc_delete_books_tags_link
        BEFORE DELETE ON tags
        BEGIN
            SELECT CASE
                WHEN (SELECT COUNT(id) FROM books_tags_link WHERE tag=OLD.id) > 0
                THEN RAISE(ABORT, 'Foreign key violation: tag is still referenced')
            END;
        END;
CREATE TRIGGER fkc_insert_books_authors_link
        BEFORE INSERT ON books_authors_link
        BEGIN
          SELECT CASE
              WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: book not in books')
              WHEN (SELECT id from authors WHERE id=NEW.author) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: author not in authors')
          END;
        END;
CREATE TRIGGER fkc_insert_books_publishers_link
        BEFORE INSERT ON books_publishers_link
        BEGIN
          SELECT CASE
              WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: book not in books')
              WHEN (SELECT id from publishers WHERE id=NEW.publisher) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: publisher not in publishers')
          END;
        END;
CREATE TRIGGER fkc_insert_books_ratings_link
        BEFORE INSERT ON books_ratings_link
        BEGIN
          SELECT CASE
              WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: book not in books')
              WHEN (SELECT id from ratings WHERE id=NEW.rating) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: rating not in ratings')
          END;
        END;
CREATE TRIGGER fkc_insert_books_series_link
        BEFORE INSERT ON books_series_link
        BEGIN
          SELECT CASE
              WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: book not in books')
              WHEN (SELECT id from series WHERE id=NEW.series) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: series not in series')
          END;
        END;
CREATE TRIGGER fkc_insert_books_tags_link
        BEFORE INSERT ON books_tags_link
        BEGIN
          SELECT CASE
              WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: book not in books')
              WHEN (SELECT id from tags WHERE id=NEW.tag) IS NULL
              THEN RAISE(ABORT, 'Foreign key violation: tag not in tags')
          END;
        END;
CREATE TRIGGER fkc_update_books_authors_link_a
        BEFORE UPDATE OF book ON books_authors_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_update_books_authors_link_b
        BEFORE UPDATE OF author ON books_authors_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from authors WHERE id=NEW.author) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: author not in authors')
            END;
        END;
CREATE TRIGGER fkc_update_books_publishers_link_a
        BEFORE UPDATE OF book ON books_publishers_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_update_books_publishers_link_b
        BEFORE UPDATE OF publisher ON books_publishers_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from publishers WHERE id=NEW.publisher) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: publisher not in publishers')
            END;
        END;
CREATE TRIGGER fkc_update_books_ratings_link_a
        BEFORE UPDATE OF book ON books_ratings_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_update_books_ratings_link_b
        BEFORE UPDATE OF rating ON books_ratings_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from ratings WHERE id=NEW.rating) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: rating not in ratings')
            END;
        END;
CREATE TRIGGER fkc_update_books_series_link_a
        BEFORE UPDATE OF book ON books_series_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_update_books_series_link_b
        BEFORE UPDATE OF series ON books_series_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from series WHERE id=NEW.series) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: series not in series')
            END;
        END;
CREATE TRIGGER fkc_update_books_tags_link_a
        BEFORE UPDATE OF book ON books_tags_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from books WHERE id=NEW.book) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: book not in books')
            END;
        END;
CREATE TRIGGER fkc_update_books_tags_link_b
        BEFORE UPDATE OF tag ON books_tags_link
        BEGIN
            SELECT CASE
                WHEN (SELECT id from tags WHERE id=NEW.tag) IS NULL
                THEN RAISE(ABORT, 'Foreign key violation: tag not in tags')
            END;
        END;
CREATE TRIGGER series_insert_trg
        AFTER INSERT ON series
        BEGIN
          UPDATE series SET sort=NEW.name WHERE id=NEW.id;
        END;
CREATE TRIGGER series_update_trg
        AFTER UPDATE ON series
        BEGIN
          UPDATE series SET sort=NEW.name WHERE id=NEW.id;
        END;