1. 表名示例：
CREATE TABLE department (
department_id INT PRIMARY KEY,
department_name VARCHAR(50)
);
CREATE TABLE employee (
employee_id INT PRIMARY KEY,
employee_name VARCHAR(50),
department_id INT,
hire_date DATE
);
2. 列名示例：
CREATE TABLE employee (
employee_id INT PRIMARY KEY,
employee_name VARCHAR(50),
hire_date DATE,
salary DECIMAL(10, 2)
);
3. 索引名示例：
CREATE INDEX idx_employee_name ON employee(employee_name);
4. 约束名示例：
ALTER TABLE employee
ADD CONSTRAINT fk_department_id
FOREIGN KEY (department_id)
REFERENCES department(department_id);
5. 视图名示例：
CREATE VIEW employee_view AS
SELECT employee_id, employee_name, department_name
FROM employee
JOIN department ON employee.department_id = department.department_id;
6. 存储过程和函数名示例：
CREATE PROCEDURE get_employee_count()
BEGIN
-- 逻辑代码
END;
CREATE FUNCTION calculate_bonus(salary DECIMAL) RETURNS DECIMAL
BEGIN
-- 逻辑代码
END;
7. 触发器名示例：
CREATE TRIGGER before_insert_employee
BEFORE INSERT ON employee
FOR EACH ROW
BEGIN
-- 逻辑代码
END;
这些示例采用了小写字母、下划线分隔单词的命名方式，使得对象名清晰、易读，并且有助于保持一致性。实际上，命名规则的选择可能会根据项目和团队的偏好而有所不同，但一致性和可读性是良好命名规范的关键。
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