How can I create first date if I have Month and a Year as user input in Stored Procedure?

I am creating a stored procedure in which one of the input parameter is YEAR_MONTH.

I need to find data from a table which has two columns as START_DATE & END_DATE. So, I need to find data from this table according to user input.

I need to create year and month into a date so that I can compare it with start/end date of table.

I tried like this for comparing month in my where clause. But it won't work as it returns multiple values.

(SELECTEXTRACT(MONTHFROMSTART_DATE) FROM

"VLC"."VLC.Z_PRJ_VLC_XS.DATABASE_TABLES.MASTER_DATA_TABLES::Z_D_LOCATION") <= :V_IP_MONTH

Is there any way to find date from year and month?

If you have some other way to compare then it will also work.

Thanks.