我正在尝试从包含HTML的数据库字段中提取图像路径。数据库中的数据如下所示:
<p><strong><strong>DISCUSSION POINT</strong>: Nearly how many years did it take Sir Francis Drake to complete the first circumnavigation of the globe in 1580? <br /><p><img id="lk45459gjh4" src="../mediaForExam/dlfkeiut8484034djjd222.png" alt="dlfkeiut8484034djjd222.png" width="697" height="352" /></p>
从这个字符串中,我只需要这一部分:
/mediaForExam/dlfkeiut8484034djjd222.png
我尝试了以下查询:
SELECT RIGHT(questionText, (LEN(questionText)-PATINDEX ( '%SRC="%' , questionText )-5)) AS MediaPath FROM exams.history
但是它返回的是这样的字符串:
./ mediaForExam / dlfkeiut8484034djjd222.png” alt =“ dlfkeiut8484034djjd222.png” width =“ 697” height =“ 352” />
有没有办法只返回第一个斜杠,文件夹名称,然后返回文件名(即:/folderName/fileName.ext)
谢谢!
答案 0 :(得分:1)
我会做的:
select substring(hh.questionText, 1, charindex('"', hh.questionText) - 1) as MediaPath
from exams.history h cross apply
( values (stuff(questionText, 1, charindex('src=', questionText)+6, ''))
) hh (questionText);