Question

I have this code:

<h4><img class="arrow" src="/Images/page-elements/arrow-light-blue.png" 
alt="" />Day 1: Halifax</h4>
<h4><img class="arrow" src="/Images/page-elements/arrow-light-blue.png" 
alt="" />Day 2: Halifax – Pictou (2 hours)</h4>
<h4><img class="arrow" src="/Images/page-elements/arrow-light-blue.png" 
alt="" />Day 1: London</h4>
<h4><img class="arrow" src="/Images/page-elements/arrow-light-blue.png" 
alt="" />Day 2: Halifax – Victoria (2 hours)</h4>

I am using:

SELECT * FROM abc WHERE `meta_value` RLIKE  'Day[^>]+</h4>'

in MySQL, which selects everything from 'Day' to the ending </h4> tag.

I want it to only select stuff which has "Victoria" in it. So I want it to select only "Day 2: Halifax – Victoria (2 hours)</h4>"

How can I do this? I tried %Victoria% but it doesn't work.

Answer 1

Use an expression like:

RLIKE 'Day.*Victoria'

Answer 2

RLIKE  'Victoria[^<]*/h4>'

详细信息

Victoria  -- look for this
[^<]*     -- match everything through the start of next tag
/h4>      -- make sure that tag is "end h4" (and include it in the match)

到目前为止，此问与答忽略了OP可能想要的内容-即从文本提取子字符串。这在MySQL中是不切实际的。使用MySQL查找行，然后使用应用程序代码进行提取。

Regex in mySQL search inside tags

2 个答案: