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Processes by material 2a

Analysis generated on: 4/2/2025 10:06:13 AM

SQL Statement

DELETE [RMSFILES#_IEMUP1A0].ACTIV, [Process by material].*
FROM [Process by material] LEFT JOIN [RMSFILES#_IEMUP1A0] ON [Process by material].prt = [RMSFILES#_IEMUP1A0].PRDNO
WHERE ((([RMSFILES#_IEMUP1A0].ACTIV)="0"));

Dependencies

Tables/[RMSFILES__IEMUP1A0]

Parameters

None

What it does

SQL Code Explanation

Description

This SQL code deletes rows from the [Process by material] table where a matching row exists in the [RMSFILES#_IEMUP1A0] table and the PRDNO matches, but the corresponding record is inactive (ACTIV = "0").

Code Breakdown

Table Names and Aliases

[Process by material]: The table from which rows will be deleted.
[RMSFILES#_IEMUP1A0]: The table used for join operations. Its alias is _IEMUP1A0.
.ACTIV and .PRDNO are columns in the [Process by material] and [RMSFILES#_IEMUP1A0] tables, respectively.

Join Operation

The code performs a LEFT JOIN operation between the two tables on the condition that their corresponding PRDNO values match:

FROM [Process by material] LEFT JOIN [RMSFILES#_IEMUP1A0] ON [Process by material].prt = [RMSFILES#_IEMUP1A0].PRDNO

The .prt column in the [Process by material] table is matched with the .PRDNO column in the [RMSFILES#_IEMUP1A0] table.

Delete Condition

Rows are deleted from the [Process by material] table where an inactive record exists in the [RMSFILES#_IEMUP1A0] table:

WHERE ((([RMSFILES#_IEMUP1A0].ACTIV)="0"));

This condition filters rows based on the value of .ACTIV in the [RMSFILES#_IEMUP1A0] table. If ACTIV equals "0", it means the record is inactive, and its corresponding row should be deleted from the [Process by material] table.

SQL Syntax

The syntax for this query uses the following features:

Table aliases ([RMSFILES#_IEMUP1A0].*) allow for easier naming of columns.
LEFT JOIN ensures that all rows in the left table are included, even if there is no match in the right table.

SQL Usage

This query is typically used to remove records from a production database where an inactive record exists in another table.

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