摘要: mysql 人大金仓: select CAST(ifnull(null, 0) as char) from dual; oracle: 转字符串to_char 判空nvl 阅读全文
posted @ 2023-11-16 13:43 ジ绯色月下ぎ 阅读(442) 评论(0) 推荐(0) 编辑