# GREGS_PARTS_QUERY
Analysis generated on: 4/2/2025 10:00:06 AM
---
## SQL Statement
```sql
SELECT GREGS_PARTS.PN, Process.FirstDim, Process.SecDim, Process.PartsPerBlank, Process.BlocksPerSheet, Process.PartsPerSheet, Process.BlanksPerBlock
FROM GREGS_PARTS LEFT JOIN Process ON GREGS_PARTS.PN = Process.PartNumber;

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

### Overview

This SQL query retrieves data from two tables, `GREGS_PARTS` and `Process`, based on a join condition. The resulting data is filtered to include only the columns specified in the `SELECT` clause.

### Breakdown

#### Table Selection

The query selects data from two tables:

*   **GREGS_PARTS**: This table appears to store information about parts, including their part numbers (`PN`).
*   **Process**: This table stores process-related data for each part, such as dimensions and quantities.

#### Join Condition

The query uses a `LEFT JOIN` to combine rows from both tables based on the matching value in the `PN` column. The join condition is:

```sql
GREGS_PARTS.PN = Process.PartNumber
```

This means that only parts with existing process data in the `Process` table will be included in the results.

#### Column Selection

The query selects specific columns from both tables using the following aliases:

*   **PN**: Part number (common to both tables)
*   **FirstDim**, **SecDim**: Process dimensions
*   **PartsPerBlank**, **BlocksPerSheet**, **PartsPerSheet**, **BlanksPerBlock**: Process-related quantities

These columns are selected from the `Process` table, as they appear to be more relevant for process-related data.

#### Data Retrieval

The query retrieves all available columns from the `GREGS_PARTS` table and the specified columns from the `Process` table. The `LEFT JOIN` ensures that all parts with existing data in both tables are included in the results, even if there is no matching data in the `Process` table.

### Example Use Case

This query could be used to analyze process-related data for a set of parts across different manufacturing processes. For instance:

*   A manufacturing company wants to identify which parts have process data available and compare their quantities or dimensions.
*   An analyst needs to retrieve part numbers and corresponding process-related data to perform further analysis or reporting.

### SQL Code

```markdown
SELECT 
    GREGS_PARTS.PN, 
    Process.FirstDim, 
    Process.SecDim, 
    Process.PartsPerBlank, 
    Process.BlocksPerSheet, 
    Process.PartsPerSheet, 
    Process.BlanksPerBlock
FROM 
    GREGS_PARTS LEFT JOIN Process ON GREGS_PARTS.PN = Process.PartNumber;
```