RPAD
是一個(gè) SQL 函數(shù),用于在字符串的右側(cè)填充指定的字符,直到達(dá)到指定的長(zhǎng)度
RPAD
函數(shù)補(bǔ)全員工編號(hào):SELECT employee_id, RPAD(employee_id, 6, '0') AS padded_employee_id
FROM employees;
RPAD
函數(shù)格式化電話號(hào)碼:SELECT phone_number, RPAD(REPLACE(phone_number, '-', ''), 10, 'X') AS formatted_phone_number
FROM customers;
RPAD
函數(shù)和其他字符串函數(shù)生成報(bào)告標(biāo)題:SELECT CONCAT(RPAD('Sales Report', 20, ' '), '|', RPAD('Product', 15, ' '), '|', 'Amount') AS report_title
FROM sales
LIMIT 1;
RPAD
函數(shù)和其他聚合函數(shù)計(jì)算每個(gè)部門的總銷售額:SELECT department_id, SUM(sales_amount) AS total_sales, RPAD('', 20, '=') AS separator
FROM sales
GROUP BY department_id;
這些示例展示了如何在不同場(chǎng)景中結(jié)合其他函數(shù)使用 RPAD
。你可以根據(jù)實(shí)際需求調(diào)整查詢語句。