PSLine2000Documentation/Queries/CurrentMachine.md

2.2 KiB

CurrentMachine

Analysis generated on: 4/2/2025 9:58:36 AM

SQL Statement

SELECT Machines.PartNumber, Machines.MachineName, Machines.CycleTime, Machines.Tool, Machines.Prime
FROM Machines
WHERE (((Machines.PartNumber)=[Forms]![Process Sheet]![PartNumber]));

Dependencies

Parameters

  • [Forms]![Process Sheet]![PartNumber] (Empty)

What it does

SQL Query Description

This SQL query retrieves specific data from the Machines table based on a condition specified in the form control [PartNumber].

Query Breakdown

SELECT Clause

The SELECT clause specifies the columns to be retrieved:

  • Machines.PartNumber: The part number of the machine.
  • Machines.MachineName: The name of the machine.
  • Machines.CycleTime: The cycle time of the machine.
  • Machines.Tool: The tool used for the machine.
  • Machines.Prime: A flag indicating whether the machine is prime (TRUE or FALSE).

FROM Clause

The FROM clause specifies the table to retrieve data from:

  • Machines: The Machines table.

WHERE Clause

The WHERE clause applies a condition to filter the data:

  • (((Machines.PartNumber)=[Forms]![Process Sheet]![PartNumber])): This is an example of an embedded expression that compares the part number in the database with the value entered in the form control [PartNumber].

Note: The use of square brackets ([]) around the form control references suggests that this query is part of a larger application built using Microsoft Access or another GUI-based database system.

Example Use Case

This query could be used to display specific machine data on a report or in a table, filtered by a particular part number. The value entered in the form control [PartNumber] would determine which machines are displayed in the result set.

Best Practices and Suggestions

  • Consider using parameterized queries to avoid SQL injection vulnerabilities.
  • Use meaningful column aliases instead of PartNumber, MachineName, etc.
  • Add a comment or description above the query to explain its purpose and any assumptions made.