Dynamically generated SQL IN clause

Question

have a CURSOR in a procedure that takes in parameters. Three of the five parameters are part of the WHERE clause where each column will be compared to via the IN keyword as opposed to the "=" because there could be more than one value passed in.
Or better question...can this be done dynamically? If so, how?
For example:
SELECT *
FROM my_table
WHERE col_1 IN (list_1_string)
AND col_2 IN (list_2_string)
AND col_3 IN (list_3_string)
How do I create the list with the approriate quotes so that the query returns the correct data if I were to manually execute it in a SQL+ session.
Thanks,
Gio
Giovanni Jaramillo
Oracle Developer Contractor
AMGEN Inc. - Sales & Marketing Information Systems
Thousand Oaks, CA 91320-1799
[email protected]

Answer 1

You could still put it in one select without creating additional objects if performance is not an issue:
SELECT *
  FROM my_table
WHERE INSTR(list_1_string, '*' || col_1 || '*', 1) > 0
   AND INSTR(list_2_string, '*' || col_2 || '*', 1) > 0
   AND INSTR(list_3_string, '*' || col_3 || '*', 1) > 0In this case values in your list_1_string, list_2_string, list_3_string should be separated with *, like *1*15*343* or any other separator, make sure this separator doesn't appear as actual data in the columns.