目录前言1. SUBSTR 函数简介2. SUBSTR 函数的基本语法3. SUBSTR 函数的使用示例3.1 提取子字符串3.2 从特定位置开始提取3.3 提取特定长度的子字符串3.4 在实际应用中的示例示例 1：从
Our organisation uses inline sql. We have been tasked with providing a suitable data access layer and are weighing up the pro\'s and cons of which way to go...
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