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SQL organization schemata.sql
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SQL organization schemata.sql
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CREATE TABLE departments (
dept_no VARCHAR(20) NOT NULL,
dept_name VARCHAR(50) NOT NULL,
CONSTRAINT pk_departments PRIMARY KEY (
dept_no
)
);
CREATE TABLE dept_emp (
emp_no INT NOT NULL,
dept_no VARCHAR(20) NOT NULL
);
CREATE TABLE dept_manager (
dept_no VARCHAR(20) NOT NULL,
emp_no INT NOT NULL
);
CREATE TABLE employees (
emp_no INT NOT NULL,
emp_title_id VARCHAR(20) NOT NULL,
birth_date DATE NOT NULL,
first_name VARCHAR(30) NOT NULL,
last_name VARCHAR(30) NOT NULL,
sex VARCHAR(10) NOT NULL,
hire_date DATE NOT NULL,
CONSTRAINT pk_employees PRIMARY KEY (
emp_no
)
);
CREATE TABLE salaries (
emp_no INT NOT NULL,
salary INT NOT NULL
);
CREATE TABLE titles (
title_id VARCHAR(20) NOT NULL,
title VARCHAR(30) NOT NULL,
CONSTRAINT pk_titles PRIMARY KEY (
title_id
)
);
ALTER TABLE dept_emp ADD CONSTRAINT fk_dept_emp_emp_no FOREIGN KEY(emp_no)
REFERENCES employees (emp_no);
ALTER TABLE dept_emp ADD CONSTRAINT fk_dept_emp_dept_no FOREIGN KEY(dept_no)
REFERENCES departments (dept_no);
ALTER TABLE dept_manager ADD CONSTRAINT fk_dept_manager_dept_no FOREIGN KEY(dept_no)
REFERENCES departments (dept_no);
ALTER TABLE dept_manager ADD CONSTRAINT fk_dept_manager_emp_no FOREIGN KEY(emp_no)
REFERENCES employees (emp_no);
ALTER TABLE salaries ADD CONSTRAINT fk_salaries_emp_no FOREIGN KEY(emp_no)
REFERENCES employees (emp_no);