I have these two queries : SELECT A,B, C FROM MyTable ORDER BY 1,2 ---------------- SELECT A,B, C FROM MyTable ORDER BY A,B What is the differences between them?

ORDER BY 1 is the ordinal number which stands for the column defined on the SELECT query. It means ORDER BY A I don't recommend using such a practice because if the column order changes, the query doesn't fail but you can have a different ordering from the one expecting.

order by A, B means first order by column A and then by column B, suppose Column A has employees' names and two employees has the same name then they will be arranged by column B like sur name or anything. order By 1, 2 means the first arrange by the first column and then by the second column. they signify the ordinal positions of the column.

Answers

What does ORDER BY 1, 2, ..., N in a query?

Martin James

880

I have these two queries :

SELECT A,B, C FROM MyTable
ORDER BY 1,2
----------------
SELECT A,B, C FROM MyTable
ORDER BY A,B

What is the differences between them?

Answers (2)

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