Question

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Can you define “literal” tables in SQL?

Occasionally I find myself in a situation where I’d like to join an existing table to a table of values that are entered in the query. Something like:

SELECT ((1,2,3),(4,5,6)); 

Where the query would return two rows of 3 columns. Obviously this syntax is not correct, but it is possible to generate a single row of data in this way. For example:

SELECT 1,2,3;

Is there actually a way to do what I’m trying to achieve?

Answer 1

SELECT 1,2,3
UNION ALL
SELECT 4,5,6;