diff --git a/schema/schema.sql b/schema/schema.sql
deleted file mode 100644
index fd49c5c..0000000
--- a/schema/schema.sql
+++ /dev/null
@@ -1,114 +0,0 @@
-COMMENT ON SCHEMA "public" IS 'standard public schema';
-
-CREATE TABLE "public"."audit" (
-    "id" serial,
-    "operation" text NOT NULL,
-    "query" text,
-    "user_name" text NOT NULL,
-    "changed_at" timestamp(6) with time zone DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT "audit_pkey" PRIMARY KEY (id)
-);
-
-CREATE INDEX "idx_audit_changed_at" ON ONLY "public"."audit" (changed_at);
-
-CREATE INDEX "idx_audit_operation" ON ONLY "public"."audit" (operation);
-
-CREATE INDEX "idx_audit_username" ON ONLY "public"."audit" (user_name);
-
-CREATE TABLE "public"."department" (
-    "dept_no" text NOT NULL,
-    "dept_name" text NOT NULL,
-    CONSTRAINT "department_pkey" PRIMARY KEY (dept_no),
-    CONSTRAINT "department_dept_name_key" UNIQUE (dept_name)
-);
-
-CREATE TABLE "public"."dept_emp" (
-    "emp_no" integer NOT NULL,
-    "dept_no" text NOT NULL,
-    "from_date" date NOT NULL,
-    "to_date" date NOT NULL,
-    CONSTRAINT "dept_emp_pkey" PRIMARY KEY (emp_no, dept_no),
-    CONSTRAINT "dept_emp_dept_no_fkey" FOREIGN KEY ("dept_no") REFERENCES "public"."department" ("dept_no") ON DELETE CASCADE,
-    CONSTRAINT "dept_emp_emp_no_fkey" FOREIGN KEY ("emp_no") REFERENCES "public"."employee" ("emp_no") ON DELETE CASCADE
-);
-
-CREATE TABLE "public"."dept_manager" (
-    "emp_no" integer NOT NULL,
-    "dept_no" text NOT NULL,
-    "from_date" date NOT NULL,
-    "to_date" date NOT NULL,
-    CONSTRAINT "dept_manager_pkey" PRIMARY KEY (emp_no, dept_no),
-    CONSTRAINT "dept_manager_dept_no_fkey" FOREIGN KEY ("dept_no") REFERENCES "public"."department" ("dept_no") ON DELETE CASCADE,
-    CONSTRAINT "dept_manager_emp_no_fkey" FOREIGN KEY ("emp_no") REFERENCES "public"."employee" ("emp_no") ON DELETE CASCADE
-);
-
-CREATE TABLE "public"."employee" (
-    "emp_no" serial,
-    "birth_date" date NOT NULL,
-    "first_name" text NOT NULL,
-    "last_name" text NOT NULL,
-    "gender" text NOT NULL,
-    "hire_date" date NOT NULL,
-    CONSTRAINT "employee_pkey" PRIMARY KEY (emp_no),
-    CONSTRAINT "employee_gender_check" CHECK (gender = ANY (ARRAY['M'::text, 'F'::text]))
-);
-
-CREATE INDEX "idx_employee_hire_date" ON ONLY "public"."employee" (hire_date);
-
-CREATE TABLE "public"."salary" (
-    "emp_no" integer NOT NULL,
-    "amount" integer NOT NULL,
-    "from_date" date NOT NULL,
-    "to_date" date NOT NULL,
-    CONSTRAINT "salary_pkey" PRIMARY KEY (emp_no, from_date),
-    CONSTRAINT "salary_emp_no_fkey" FOREIGN KEY ("emp_no") REFERENCES "public"."employee" ("emp_no") ON DELETE CASCADE
-);
-
-CREATE INDEX "idx_salary_amount" ON ONLY "public"."salary" (amount);
-
-CREATE TRIGGER salary_log_trigger AFTER DELETE OR UPDATE ON public.salary FOR EACH ROW EXECUTE FUNCTION public.log_dml_operations();
-
-CREATE TABLE "public"."title" (
-    "emp_no" integer NOT NULL,
-    "title" text NOT NULL,
-    "from_date" date NOT NULL,
-    "to_date" date,
-    CONSTRAINT "title_pkey" PRIMARY KEY (emp_no, title, from_date),
-    CONSTRAINT "title_emp_no_fkey" FOREIGN KEY ("emp_no") REFERENCES "public"."employee" ("emp_no") ON DELETE CASCADE
-);
-
-CREATE VIEW "public"."current_dept_emp" AS SELECT l.emp_no,
-    d.dept_no,
-    l.from_date,
-    l.to_date
-   FROM (public.dept_emp d
-     JOIN public.dept_emp_latest_date l ON (((d.emp_no = l.emp_no) AND (d.from_date = l.from_date) AND (l.to_date = d.to_date))));
-
-CREATE VIEW "public"."dept_emp_latest_date" AS SELECT emp_no,
-    max(from_date) AS from_date,
-    max(to_date) AS to_date
-   FROM public.dept_emp
-  GROUP BY emp_no;
-
-CREATE OR REPLACE FUNCTION public.log_dml_operations()
- RETURNS trigger
- LANGUAGE plpgsql
-AS $function$
-BEGIN
-    IF (TG_OP = 'INSERT') THEN
-        INSERT INTO audit (operation, query, user_name)
-        VALUES ('INSERT', current_query(), current_user);
-        RETURN NEW;
-    ELSIF (TG_OP = 'UPDATE') THEN
-        INSERT INTO audit (operation, query, user_name)
-        VALUES ('UPDATE', current_query(), current_user);
-        RETURN NEW;
-    ELSIF (TG_OP = 'DELETE') THEN
-        INSERT INTO audit (operation, query, user_name)
-        VALUES ('DELETE', current_query(), current_user);
-        RETURN OLD;
-    END IF;
-    RETURN NULL;
-END;
-$function$;
-