SQL Select a row and store in a SQL variable

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伪装坚强ぢ
伪装坚强ぢ 2021-02-05 06:16

So, I\'m writing this Stored Proc and I really suck at SQL.

My Question to you guys is:

Can I select an entire row and store it in a variable?

I k

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3条回答
  • 2021-02-05 06:30

    Please see/via:

    MSSQL Select statement with incremental integer column... not from a table

    SELECT ROW_NUMBER() OVER( ORDER BY Column1, Column2 ) AS 'rownumber',*
    FROM YourTable
    
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  • 2021-02-05 06:31

    You can select the fields into multiple variables:

    DECLARE @A int, @B int
    
    SELECT
      @A = Col1,
      @B = Col2
    FROM SomeTable
    WHERE ...
    

    Another, potentially better, approach would be to use a table variable:

    DECLARE @T TABLE (
      A int,
      B int
    )
    INSERT INTO @T ( A, B )
    SELECT
      Col1,
      Col2
    FROM SomeTable
    WHERE ...
    

    You can then select from your table variable like a regular table.

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  • 2021-02-05 06:44

    You could create a table variable that matches your table schema and store the single row in it:

    declare @myrow table(field0 int,field1 varchar(255))
    insert into @myrow
    select field0,field1 from mytable where field0=1
    
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