MyBatis动态SQL全解析:五大核心标签实战指南
一、动态SQL的价值:告别硬编码时代
传统SQL拼接的痛点
// 传统方式需要手动拼接SQL字符串
StringBuilder sql new StringBuilder("SELECT * FROM orders WHERE 11");
if (status ! null) {sql.app…
IntroduceProblem Analysis (Using “258” as example)
//2 a b c
//5 j k l
//8 t u vPossible letter combinations:
a, j, t (no further options, this is one combination)a, j, u (no further options, another combination)a, j, v (another c…