MySQL - Creating new column via LEFT JOIN

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keeeirs10
keeeirs10 Member
edited January 2022 in Magic ETL

Hello!

I am having trouble creating a new column (Dummy) to identify rows that I need to remove from my output in MYSQL dataflow (Beginner at using Domo). The query is valid, but when the output is produced, the column "Dummy" does not appear in the dataset. See below.

SELECT

A.`Posting Title`,

A.`Weekly Reporting Date`,

A.`Weekly Report Stage`,

A.`Funnel Stage`,

A.`Candidate Link`,

A.`Origin`,

A.`Department`,

A.`Days in Stage`,

A.`Days to Hire`,

A.`Days to Archive`,

A.`Offer Acceptance Date`,

A.`Candidate Journey Start Date`,

A.`Event Date`,

A.`Previous Event Date`,

A.`Previous Opportunity Stage`,

A.`Candidate Name`,

A.`Hiring Manager`,

A.`Posting Created Date`, 

A.`Owner`,

A.`Posting Country`,

A.`Posting Location`,

A.`Team`,

A.`Posting Status`,

A.`Archive Reason`,

A.`Candidate Email`,

Bad.`Dummy`

FROM `lever_weekly_khtest` AS A

LEFT JOIN (SELECT `Candidate Name`,

      "Remove" AS Dummy

      FROM `lever_inactive_report`

      WHERE `Candidate Name` IS NOT NULL) AS Bad

      ON A.`Candidate Name` = Bad.`Candidate Name`

      WHERE Bad.`Dummy` IS NULL;


Thank you! :)

Best Answer

  • keeeirs10
    keeeirs10 Member
    Answer ✓

    UPDATE: I am in fact a Dummy because I was selecting the wrong transformed dataset in my output. All is well, and the column is now appearing!

Answers

  • GrantSmith
    GrantSmith Coach

    Hi @keeeirs10

    Is this query being done in your output section or as a transform?

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  • keeeirs10
    keeeirs10 Member
    Answer ✓

    UPDATE: I am in fact a Dummy because I was selecting the wrong transformed dataset in my output. All is well, and the column is now appearing!

  • keeeirs10
    keeeirs10 Member

    Thanks for the input Grant! See above for the solution lol.

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