Is it possible to write a 'Case When' statement in 'Physical Layer' while joining tables?
Thanks in Advance.
Yes, open the expression builder and write it there inside (so not directly in the textarea, the "Expression" field, of the join).
Adding to Gianni: But you must do it on a fresh join. You can't change an existing "=" join to a complex join.
True: if the join is already saved as physical foreign key join first delete it. The properties window of the join clearly tell you the kind of join:
when i am trying same method getting below error message
Thanks
What *precisely* are you putting into the join condition?
You know that if you post directly everything we are not going to try to guess what you maybe try to do?
I can have this error when I try to write a CASE WHEN in a physical foreign key join. This is what Christian first said: if it's a "simple" join you must first delete it and create a new one which will be saved as complex join (with the CASE WHEN directly) and not as foreign key join.
Performance will play a factor ... if you have large row counts this case is going to be evaluated constantly and may prove problematic. So, yes, you can do it, & yes it works ... doesn't always work well.
Thank you so much Gianni Ceresa and Christian Berg . Problem solved. created a new complex join between two tables.
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