PSLine2000Documentation/Queries/Metals.md

Metals

Analysis generated on: 4/2/2025 10:04:19 AM

SQL Statement

SELECT [Metals Header].*, IIf(itsanull([Units])="SF",1,ITSAZERO([$NMWT]*(144/([length]*[Width])))) AS Dens, [RMSFILES#_EGMMP1A0].*, [Metals Not Tracked].IE_Density, IIf([Dens]=0,[IE_Density],[Dens]) AS Density, Itsazero([STDC1]) AS PricePerLB1
FROM (([Metals Header] LEFT JOIN [RMSFILES#_EGMMP1A0] ON [Metals Header].PartNo = [RMSFILES#_EGMMP1A0].[$PRD#]) LEFT JOIN [Metals Not Tracked] ON [Metals Header].PartNo = [Metals Not Tracked].PartNo) LEFT JOIN [RMSFILES#_MSPMLVPT] ON [Metals Header].PartNo = [RMSFILES#_MSPMLVPT].PRDNO;

Dependencies

• Tables/[RMSFILES__EGMMP1A0]
• Tables/[RMSFILES__MSPMLVPT]

Parameters

• None

What it does

SQL Query Description

This SQL query retrieves data from multiple tables and performs various calculations to generate a final result set. Here's a breakdown of the query:

Tables Involved

The query joins data from four tables:

1. [Metals Header]: contains metadata about metals.
2. [RMSFILES#_EGMMP1A0]: contains additional data related to metals, including production and cost information.
3. [Metals Not Tracked]: contains data about metals that are not tracked (e.g., missing or outdated information).
4. [RMSFILES#_MSPMLVPT]: contains production data for specific metals.

Join Order

The query uses a series of left joins to combine data from the tables:

1. First, it joins [Metals Header] with [RMSFILES#_EGMMP1A0] on the PartNo column.
2. Next, it joins the result set with [Metals Not Tracked] on the same PartNo column.
3. Finally, it joins the previous result set with [RMSFILES#_MSPMLVPT] on the PRDNO column.

Calculated Columns

The query calculates two new columns:

1. Dens: calculates the density of the metal based on its weight, length, and width. The formula is: (144/([length]*[Width])). If [Units] is "SF" (square feet), it returns 1.
2. IIf([Dens]=0,[IE_Density],[Dens]): applies an IF function to check if the calculated density (Dens) is zero. If it is, it returns [IE_Density], otherwise, it returns the original Dens value.

Final Result Set

The final result set includes all columns from [Metals Header], [RMSFILES#_EGMMP1A0], and [Metals Not Tracked]. The calculated columns (Dens and its variant) are also included. Finally, it adds a new column PricePerLB1 which is the result of applying an ITSAZERO function to the [STDC1] column.

Notes

• The SQL query uses various data types (e.g., [Units] is assumed to be a string).
• The query assumes that some columns may be null, and it handles these cases using IF functions.
• The use of ITSAZERO and IIf functions suggests that the query is specific to a particular software or system.