Creating Table B from Table A with Specific Conditions and Aggregation

[minseon]

Hi all
i have issue during makeing new table

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Table A has columns ITEM_CD, B_CD, DEPT_CD, C_NO, CREATED_AT, and MASK_YN. I want to create a new table B from this table with the following conditions.

1. table B has 4 columns. item_cd, B_CD, dept_cd, created_at
2.table A MASK_YN = 'Y'
3. the ITEM_CD column in B has the fastest CREATED_AT per ITEM_CD in A table
4. the ITEM_CD column in B must be a unique value
5. the B_CD, DEPT_CD, CREATED_AT column values in table B are the B_CD, DEPT_CD, CREATED_AT column values that map to the A table ITEM_CD column values based on the ITEM_CD extracted in step 3.

I tried below, but it didn't work
result tbale has duplicated item_cd

can you solve this issue??

thanks

[ChiragGarg2512 · Accepted solution]

@minseon Try the following DAX,

TableB = 
SUMMARIZE(
    FILTER(
        'TableA',
        'TableA'[MASK_YN] = "Y"
    ),
    [ITEM_CD],
    "B_CD", MAX('TableA'[B_CD]),
    "DEPT_CD", MAX('TableA'[DEPT_CD]),
    "CREATED_AT", CALCULATE(MAX('TableA'[CREATED_AT]), ALLEXCEPT('TableA', 'TableA'[ITEM_CD]))
)

[minseon]

thank you 🙂