SQL Server How to remove pairs which comes in sequence in 1 column only anywhere in table [closed]

x6h2sr28 于 2023-10-15 发布在其他

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I just want to delete those rows which have those pairs. Pls find below Example table having (901,902) pair which are highlighted in yellow comes in sequence

I need SQL query or SP to delete those pairs only keeping the other rows which have 901. when 902 comes appears in any row, it is very sure that 901 would be there on the above row. result should look like below after removing pairs.

sql-server

来源：https://stackoverflow.com/questions/77287298/how-to-remove-pairs-which-comes-in-sequence-in-1-column-only-anywhere-in-table

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按热度按时间

wz1wpwve1#

You can use a common table expression (CTE) to identify the rows you want to delete and then delete them.

;WITH CTE AS (
    SELECT
        ID,
        PO,
        [Doc date],
        Reference,
        LAG(Reference) OVER (ORDER BY [Doc date]) AS Prev_Reference
    FROM
        YourTableName
)
DELETE FROM CTE
WHERE Reference = 902 AND Prev_Reference = 901;

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SQL Server How to remove pairs which comes in sequence in 1 column only anywhere in table [closed]

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