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Row Constructor (or Table-Valued Constructor) as Derived Table [CORE3880] #4217
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Modified by: @sim1984priority: Major [ 3 ] => Minor [ 4 ] |
Modified by: @sim1984description: Add support derivative tables on the basis of values of constants SELECT * Result: => Add support Row Constructor (or Table-Valued Constructor) as Derived Table SELECT * Result: summary: Derivative tables on the basis of values of constants => Row Constructor (or Table-Valued Constructor) as Derived Table |
Modified by: @sim1984description: Add support Row Constructor (or Table-Valued Constructor) as Derived Table SELECT * Result: => Add support Row Constructor (or Table-Valued Constructor) as Derived Table SELECT * Result: Row Constructor (or Table-Valued Constructor) as Source in a MERGE Statement MERGE Currency AS Target |
Modified by: @dyemanovassignee: Dmitry Yemanov [ dimitr ] |
The full syntax is described in ISO/IEC 9075-2:1999 7.3 |
@sim1984 Lets not use outdated specifications, and instead use ISO/IEC 9075-2:2023 (still section 7.3). |
Submitted by: @sim1984
Votes: 4
Add support Row Constructor (or Table-Valued Constructor) as Derived Table
SELECT *
FROM (VALUES (1, 3), (1, 5)) AS T(A, B)
Result:
A B
1 3
1 5
Row Constructor (or Table-Valued Constructor) as Source in a MERGE Statement
MERGE Currency AS Target
USING (VALUES ('USD', 'U.S. Dollar'),
('EUR', 'Euro'),
('CAD', 'Canadian Dollar'),
('JPY', 'Japanese Yen'))
AS Source ( CurrencyCode, CurrencyName )
ON Target.CurrencyCode = Source.CurrencyCode
WHEN MATCHED THEN
UPDATE SET CurrencyName = Source.CurrencyName
WHEN NOT MATCHED THEN
INSERT ( CurrencyCode, CurrencyName )
VALUES ( Source.CurrencyCode, Source.CurrencyName )
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