PSLine2000Documentation/Queries/Q3.md

Q3

Analysis generated on: 4/2/2025 10:08:09 AM

SQL Statement

SELECT DISTINCTROW Process.*
FROM Process
ORDER BY Mid$([PartNumber],4);

Dependencies

• Tables/Process

Parameters

• None

What it does

SQL Query Description

Overview

The provided SQL query retrieves distinct rows from the Process table, ordered by a specific column.

Breakdown

SELECT Clause

SELECT DISTINCTROW Process.*

• The SELECT DISTINCTROW clause specifies that only unique rows should be returned.
• The Process.* syntax selects all columns (*) from the Process table.

FROM Clause

FROM Process

• This clause specifies the table to retrieve data from, which is the Process table.

ORDER BY Clause

ORDER BY Mid$([PartNumber],4);

• The ORDER BY clause sorts the retrieved rows in ascending order based on a specified column.
• The Mid$ function extracts a specific substring from the PartNumber column:
  • $( denotes the start of an expression enclosed within parentheses.
  • Mid$ is likely an alias for the SUBSTRING or LEFT/RIGHT functions in SQL Server.
  • The first argument to Mid$ is PartNumber, and the second argument is 4.
    • The 4 means that 4 positions from the beginning of the string are extracted.