PSLine2000Documentation/Queries/GREGS_PARTS_QUERY.md

GREGS_PARTS_QUERY

Analysis generated on: 4/2/2025 10:00:06 AM

SQL Statement

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:

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

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;