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 thePartNumber
column (after right-trimming)PartNumber
: The originalPartNumber
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$
andRight$
: 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.