# 第六章 使用字符串

- [6.1 遍历字符串](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.1-bian-li-zi-fu-chuan.md)
- [6.2 字符串文字中包含引号](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.2-zi-fu-chuan-wen-zi-zhong-bao-han-yin-hao.md)
- [6.3 计算字符在字符串中出现的次数](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.3-ji-suan-zi-fu-zai-zi-fu-chuan-zhong-chu-xian-de-ci-shu.md)
- [6.4 从字符串中删除不需要的字符](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.4-cong-zi-fu-chuan-zhong-shan-chu-bu-xu-yao-de-zi-fu.md)
- [6.5 将字符和数字数据分离](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.5-jiang-zi-fu-he-shu-zi-shu-ju-fen-li.md)
- [6.6 判别字符串是不是字母数字型的](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.6-pan-bie-zi-fu-chuan-shi-bu-shi-zi-mu-shu-zi-xing-de.md)
- [6.7 提取姓名的大写首字母缩写](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.7-ti-qu-xing-ming-de-da-xie-shou-zi-mu-suo-xie.md)
- [6.8 按字符串中的部分内容排序](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.8-an-zi-fu-chuan-zhong-de-bu-fen-nei-rong-pai-xu.md)
- [6.9 按字符串中的数值排序](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.9-an-zi-fu-chuan-zhong-de-shu-zhi-pai-xu.md)
- [6.10 根据表中的行创建一个分隔列表](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.10-gen-ju-biao-zhong-de-hang-chuang-jian-yi-ge-fen-ge-lie-biao.md)
- [6.11 将分隔数据转换为多值IN列表](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.11-jiang-fen-ge-shu-ju-zhuan-huan-wei-duo-zhi-in-lie-biao.md)
- [6.12 按字母顺序排列字符串](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.12-an-zi-mu-shun-xu-pai-lie-zi-fu-chuan.md)
- [6.13 判别可作为数值的字符串](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.13-pan-bie-ke-zuo-wei-shu-zhi-de-zi-fu-chuan.md)
- [6.14 提取第n个分隔的子串](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.14-ti-qu-dinge-fen-ge-de-zi-chuan.md)
- [6.15 分解IP地址](/sql/di-liu-zhang-shi-yong-zi-fu-chuan/6.15-fen-jie-ip-di-zhi.md)