# Util Make Select 0b
Analysis generated on: 4/2/2025 10:14:14 AM
---
## SQL Statement
```sql
SELECT "x X X" AS BestSheetSet, [Filtered Parts 3].PN, Process1.* INTO [Util Selection 0b]
FROM Process1 RIGHT JOIN ([Filtered Parts 3] LEFT JOIN Process ON [Filtered Parts 3].PN = Process.PartNumber) ON Process1.PartNumber = [Filtered Parts 3].PN
WHERE (((Process.PartNumber) Is Null) AND ((Process1.PartNumber)=[pn]))
ORDER BY Process.PartNumber;

```
## Dependencies
- [[Tables/Process1]]
- [[Tables/Parts]]
- [[Tables/Process]]
## Parameters
- *None*
## What it does
**SQL Query Description**
=========================

### Overview

This SQL query performs a complex join operation to retrieve filtered data from multiple tables. The goal is to identify the best sheet set based on certain conditions.

### Table Involved

The following tables are involved in this query:

*   `Process1`: A table containing process-related data with columns `PartNumber` and other unspecified fields (`*`).
*   `[Filtered Parts 3]`: A table containing filtered parts data with a column `PN`.
*   `Process`: Another table containing process data with a column `PartNumber`.

### Query Steps

1.  **Join Operation**: The query first performs an inner join between the `Process1` and `[Filtered Parts 3]` tables based on the `PN` column, resulting in a new temporary table.
2.  **Left Join with Process Table**: Then, it performs another left join between the temporary table from step 1 and the `Process` table. The join condition is that the `PN` column from both tables must match.
3.  **Filtering and Sorting**: After joining the tables, the query filters out rows where either the `PartNumber` in `Process` or `Process1` is null. It also adds a filter to select only rows where `[pn]` equals the `PartNumber` in `Process1`.
4.  **Grouping and Aggregation**: The query groups the remaining rows by the `PartNumber` column from both tables.
5.  **Output**: Finally, it selects specific columns (`BestSheetSet`, `PN`) from the filtered and grouped data and assigns a default value `"x X X"` to the `BestSheetSet` column.

### Output

The query produces a new table named `[Util Selection 0b]` with the following structure:

| BestSheetSet | PN |
| --- | --- |
| "x X X" | filtered_PN |

Note that the actual output will depend on the data in the `Process1`, `[Filtered Parts 3]`, and `Process` tables.

### Note

The use of `Is Null` condition in the WHERE clause is unusual. Typically, this would be written as `IS NULL`. However, based on your SQL code, I have followed it as-is to maintain consistency with your original query.