SQL - retain ordering based on the query params

Question

I\'m trying to perform a SELECT with an IN clause and I would like to be able to have the results returned in the same order as the elements in my list

Answer 1

You can concatenate your variables and order by instr on it like below. I e cannot vouch for the efficiency of this - but must be Okey.Your front end will obviously have to do a bit more work.But constructing a query like this can be open to sql Injection.

SELECT * FROM orders WHERE order_no IN ('B123', 'B483', 'B100', 'B932', ...)
ORDER BY 
  instr ('@B123@'|| '@B483@'||'@B100@'||'@B932@'||... ,'@'|| order_no||'@')