Question

I want to do string replace in some data in pgsql database column. I tried

CASE
    WHEN (po.siteid IS NOT NULL) THEN replace('po.html_content', 'abcd', 'xxx')
        ELSE pc.html_content
 END  

I want to replace string in po.html_content column. But above code is not working. Query get the data in po.html_content column without replacing.
Is my code is wrong or any idea…

Answer 1

Don’t enclosed the column name in a single quote, in that case, it is not a column anymore but a regular string.

CASE
    WHEN (po.siteid IS NOT NULL) THEN replace(po.html_content, 'abcd', 'xxx')
    ELSE pc.html_content
END