Add jOOQ sample application

See gh-2804

spring-boot-samples/spring-boot-sample-jooq/src/main/resources/schema.sql

@@ -0,0 +1,39 @@
+CREATE TABLE language (
+  id              NUMBER(7)     NOT NULL PRIMARY KEY,
+  cd              CHAR(2)       NOT NULL,
+  description     VARCHAR2(50)
+);
+
+CREATE TABLE author (
+  id              NUMBER(7)     NOT NULL PRIMARY KEY,
+  first_name      VARCHAR2(50),
+  last_name       VARCHAR2(50)  NOT NULL,
+  date_of_birth   DATE,
+  year_of_birth   NUMBER(7),
+  distinguished   NUMBER(1)
+);
+
+CREATE TABLE book (
+  id              NUMBER(7)     NOT NULL PRIMARY KEY,
+  author_id       NUMBER(7)     NOT NULL,
+  title           VARCHAR2(400) NOT NULL,
+  published_in    NUMBER(7)     NOT NULL,
+  language_id     NUMBER(7)     NOT NULL,
+
+  CONSTRAINT fk_book_author     FOREIGN KEY (author_id)   REFERENCES author(id),
+  CONSTRAINT fk_book_language   FOREIGN KEY (language_id) REFERENCES language(id)
+);
+
+CREATE TABLE book_store (
+  name            VARCHAR2(400) NOT NULL UNIQUE
+);
+
+CREATE TABLE book_to_book_store (
+  name            VARCHAR2(400) NOT NULL,
+  book_id         INTEGER       NOT NULL,
+  stock           INTEGER,
+
+  PRIMARY KEY(name, book_id),
+  CONSTRAINT fk_b2bs_book_store FOREIGN KEY (name)        REFERENCES book_store (name) ON DELETE CASCADE,
+  CONSTRAINT fk_b2bs_book       FOREIGN KEY (book_id)     REFERENCES book (id)         ON DELETE CASCADE
+);