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我是数据库新手,所以请告诉我如何从我的 sql 中的 longtext(clob 数据类型)读取数据。
长文本字段名称是 Rest_Server ,要读取的值标签就是从中读取的。
从表中选择 substr(clob_column,INSTR(clob_column,''),lengthOfTag)