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Query2

Analysis generated on: 4/2/2025 10:09:20 AM

SQL Statement

SELECT DISTINCTROW Left$([PartNumber],7) AS Expr1, Right$([PartNumber],1) AS Expr2, Metals.PartNo, Metals.Gauge, Metals.Density, Process.PartName
FROM Process INNER JOIN Metals ON Process.MetalType = Metals.PartNo
WHERE ((Metals.PartNo="8110611"))
ORDER BY Left$([PartNumber],7), Right$([PartNumber],1) DESC;

Dependencies

Parameters

None

What it does

SQL Query Description

Overview

This SQL query retrieves specific data from two joined tables, Process and Metals, based on a condition applied to the Metals.PartNo column. The retrieved columns are modified using string manipulation functions.

Step-by-Step Explanation

1. Selecting Distinct Row Values

The SELECT DISTINCTROW statement is used to retrieve only unique rows from the result set.

2. String Manipulation Functions

Two string manipulation functions are applied to the PartNumber column:

Left$([PartNumber],7): This function takes the first 7 characters from the left side of the PartNumber. The $ symbol is used to indicate that the function operates on a string.
Right$([PartNumber],1): This function takes the last character from the right side of the PartNumber.

The resulting strings are assigned aliases as Expr1 and Expr2, respectively.

3. Joining Tables

The query joins the Process table with the Metals table on the condition that MetalType in Process equals PartNo in Metals. This allows the query to access data from both tables based on a common column.

4. Filtering Data

A filter is applied using the WHERE clause, which only includes rows where the value of Metals.PartNo is equal to '8110611'.

5. Sorting Results

The results are sorted in descending order based on both Left$([PartNumber],7) and Right$([PartNumber],1). This means that the rows will be ordered first by the last character of the part number (in reverse order), and then by the first 7 characters of the part number.

6. Retrieving Additional Data

The query retrieves additional data from both tables, including:

Metals.PartNo: The part number of the metal.
Metals.Gauge: The gauge of the metal.
Metals.Density: The density of the metal.
Process.PartName: The name of the process associated with the metal.

Result

The query will return a list of rows that meet the specified conditions, with the modified PartNumber values and additional data from both tables.

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