PSLine2000Documentation/Queries/SG Trash Removed Duplicates.md

2.6 KiB

SG Trash Removed Duplicates

Analysis generated on: 4/2/2025 10:11:23 AM

SQL Statement

SELECT [SG Trash Query].Part, Max(((Trim$(Right$([PartNumber],1))))) AS Rev, Max([SG Trash Query].PartNumber) AS MaxOfPartNumber
FROM [SG Trash Query]
GROUP BY [SG Trash Query].Part
ORDER BY [SG Trash Query].Part;

Dependencies

  • None

Parameters

  • Error analyzing parameters: For loop not initialized

What it does

SQL Code Description

This SQL code snippet performs the following operations on a table named [SG Trash Query]:

1. Selecting Data

The query selects data from the specified table, including columns Part, PartNumber, and performing calculations on PartNumber.

2. Calculating Right-Trimmed Part Number

The code uses the Right$ function to extract the last character from the PartNumber column, and then applies the Trim$ function to remove any leading or trailing whitespace. The result is stored in a new calculated column named Rev.

3. Finding Maximum Values

For each group of rows with the same value in the Part column, the query uses the Max aggregation function to find the maximum values for two columns:

  • Rev: The last character of the PartNumber column (after right-trimming)
  • PartNumber: The original PartNumber column

These maximum values are stored in new calculated columns named Rev and MaxOfPartNumber, respectively.

4. Grouping and Sorting Data

The query groups the data by the Part column, which means that rows with the same value in this column will be treated as a single group. The results are then ordered based on the values in the Part column.

5. Returning Results

Finally, the query returns the grouped and sorted data, including the calculated columns Rev and MaxOfPartNumber, as well as the original Part and PartNumber columns.

Full Code with Explanation

SELECT 
    [SG Trash Query].Part, 
    Max(((Trim$(Right$([PartNumber],1))))) AS Rev, 
    Max([SG Trash Query].PartNumber) AS MaxOfPartNumber
FROM 
    [SG Trash Query]
GROUP BY 
    [SG Trash Query].Part
ORDER BY 
    [SG Trash Query].Part;

Key Terms and Functions Used

  • SELECT: The statement used to extract data from a database.
  • [SG Trash Query]: A reference to the specified table in the database.
  • Trim$ and Right$: Functions that manipulate strings (i.e., text data).
  • Max: An aggregation function that returns the maximum value within a group of rows.
  • GROUP BY: A clause used to group rows based on one or more columns.
  • ORDER BY: A clause used to sort the results in ascending or descending order.