problem using Oracle parameters in SELECT IN

Question

I have a problem when inserting a string of numbers into sql query

  SELECT * 
    FROM tablename a 
   WHERE a.flokkurid IN (3857,3858,3863,3285) 
ORDER BY          


        

Answer 1

That's not how parameters work. You cannot specify a "set" as a parameter, you have to assemble the SQL query in the string. And watch out for SQL Injection.

In addition, you might want to take a look at these:

• Is it possible to use query parameters to fill the IN keyword
• Parameterize an SQL IN clause

Update

Codo's answer has a very interesting approach for Oracle. I cannot test it right now, but it sure looks promising.

There's a very similar question here: OracleParameter and IN Clause , as pointed out by @DCookie. It's not an exact duplicate because when the type of the item in array changes, the SQL cast also changes.