This SAS `PROC SQL` code performs the following steps: 1. **Create...

This SAS PROC SQL code performs the following steps:

1. Create a New Table (def_ds):

   • A new table named def_ds is created.

2. Select the Oblgr_Nbr Column:

   • It selects only the Oblgr_Nbr (Obligor Number) column from the input dataset data_ds.

3. Apply Filtering Conditions:

   • Rows from data_ds are filtered based on the following conditions:
     • The value of bi_dt (presumably a date or time period column) must equal the value of next_quarter_num.
     • The column Default_Ind_OblgrAbsorb must be equal to 1.
     • The Oblgr_Nbr must exist in the dataset surv_ds.

4. Subquery Usage:

   • The in clause uses a subquery that selects distinct Oblgr_Nbr values from the dataset surv_ds.
   • This ensures that only Oblgr_Nbr values common to both data_ds and surv_ds pass the filter.

5. Output:

   • The resulting def_ds table will contain unique Oblgr_Nbr values from data_ds that satisfy all three filtering conditions.

Summary:

Essentially, this code generates a new table def_ds that contains a list of obligor numbers (Oblgr_Nbr) that:

• Appear in the specific quarter (bi_dt = next_quarter_num),
• Have a default indicator (Default_Ind_OblgrAbsorb = 1),
• Exist in the reference dataset surv_ds.