PSLine2000Documentation/Queries/Query1.md

Query1

Analysis generated on: 4/2/2025 10:08:28 AM

SQL Statement

SELECT DISTINCTROW Process.*, Metals.*, AddnlProc.*, Process.PartNumber
FROM (Process INNER JOIN Metals ON Process.MetalType = Metals.PartNo) INNER JOIN AddnlProc ON Process.PartNumber = AddnlProc.PartNumber
WHERE ((Process.PartNumber="9007440A"));

Dependencies

• Queries/Metals
• Tables/AddnlProc

Parameters

• None

What it does

SQL Query Description

Overview

This SQL query retrieves specific data from three tables: Process, Metals, and AddnlProc. The query joins these tables based on certain conditions and filters the results to only include rows where the PartNumber is "9007440A".

Breakdown of the Query

SELECT Clause

The SELECT DISTINCTROW clause specifies that only unique rows should be returned. In this case, it selects all columns (*) from three tables:

• Process
• Metals
• AddnlProc

Additionally, it selects one column: PartNumber, which is common to both Process and AddnlProc.

FROM Clause

The query consists of two inner joins:

1. Process INNER JOIN Metals ON Process.MetalType = Metals.PartNo: This join combines rows from the Process table with those from the Metals table, where the MetalType column in Process matches the PartNo column in Metals.
2. (Process INNER JOIN Metals ON Process.MetalType = Metals.PartNo) INNER JOIN AddnlProc ON Process.PartNumber = AddnlProc.PartNumber: This join combines the result of the previous step with the AddnlProc table, where the PartNumber column in Process matches the PartNumber column in AddnlProc.

WHERE Clause

The WHERE clause filters the results to only include rows where:

• The PartNumber is equal to "9007440A".

Query Purpose

In summary, this SQL query retrieves unique data from three tables, joining them based on specific conditions. It then filters the results to only include rows with a specific PartNumber.