SQL Server

Generate UUID

See more ULID/UUID Examples

Generates a version 4 UUID, using either uppercase or lowercase hex. SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @sb int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sb OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Generate a lowercase UUID.
    DECLARE @lowercase int
    SELECT @lowercase = 1
    DECLARE @success int
    EXEC sp_OAMethod @sb, 'AppendUuid', @success OUT, @lowercase
    EXEC sp_OAMethod @sb, 'GetAsString', @sTmp0 OUT
    PRINT @sTmp0

    -- example: edb1bb24-e9be-4ada-98bd-c2d893f29f55

    SELECT @lowercase = 0
    EXEC sp_OAMethod @sb, 'Clear', NULL
    EXEC sp_OAMethod @sb, 'AppendUuid', @success OUT, @lowercase
    EXEC sp_OAMethod @sb, 'GetAsString', @sTmp0 OUT
    PRINT @sTmp0

    -- example: 338EAF28-631E-4303-BE27-A8D80E9191CB

    EXEC @hr = sp_OADestroy @sb


END
GO