PSLine2000Documentation/Queries/Query12.md

Query12

Analysis generated on: 4/2/2025 10:08:48 AM

SQL Statement

SELECT [Processes by List].PartNumber, UniversalQ.GrossWt, UniversalQ.ActualWt, Left([UniversalQ]![PartNumber],7) AS PN, UniversalQ.Utilization INTO temp2
FROM [Processes by List] LEFT JOIN UniversalQ ON [Processes by List].PartNumber = UniversalQ.PartNumber;

Dependencies

• Queries/UniversalQ

Parameters

• None

What it does

SQL Query Description

Overview

This SQL query retrieves data from two tables: [Processes by List] and UniversalQ. It performs a left join operation to combine rows from both tables based on a common column, PartNumber.

Query Details

• Table Selection: The query selects data from the following tables:

  • [Processes by List]: This table is the source of the data.
  • UniversalQ: This table serves as the secondary data source for the join operation.

• Join Type: A left join (LEFT JOIN) is used to combine rows from both tables. In a left join, all records from the left table ( [Processes by List] ) are included in the result set, and matching records from the right table ( UniversalQ ) are appended to the left table's records.

• Join Condition: The join operation is based on the PartNumber column, which exists in both tables. This ensures that only rows with a match in both tables are included in the result set.

• Selected Columns:

  • [Processes by List].PartNumber: Retrieves the part number from the left table.
  • UniversalQ.GrossWt: Retrieves the gross weight column from the right table.
  • UniversalQ.ActualWt: Retrieves the actual weight column from the right table.
  • Left([UniversalQ]![PartNumber],7) AS PN: Truncates the part number from the left table to 7 characters using the LEFT function and assigns it an alias PN.
  • UniversalQ.Utilization: Retrieves the utilization data from the right table.

• Temporary Result Set: The query stores the result set in a temporary table named temp2. This allows for further processing or analysis of the combined data without modifying the original tables.

Example Use Case

This SQL query can be used to combine data from different sources, such as parts inventory and their corresponding weights. By joining these two tables based on part number, you can easily retrieve information about each part's gross weight, actual weight, and utilization data. This combined data can then be used for further analysis or reporting.

Code Explanation

The code itself is straightforward:

• The SELECT statement retrieves the desired columns from both tables.
• The FROM clause specifies the left table ([Processes by List]) as the source of the data.
• The LEFT JOIN clause combines rows from both tables based on the common column PartNumber.
• The INTO clause assigns the result set to a temporary table named temp2.