Create Index with Online if Enterprise Ed.

index-online-dynamic.sql

DECLARE @ver nvarchar(MAX), @cmd nvarchar(MAX);
SELECT @ver = @@VERSION;

SET @cmd = N'CREATE INDEX IX_TableName_Description ON dbo.TableName
    (Column1, Column2)
    INCLUDE (Column3, Column4)
    ';

IF (NOT EXISTS (SELECT 1 FROM sys.indexes WHERE name = 'IX_TableName_Description'
        AND object_id = OBJECT_ID('dbo.TableName')))
BEGIN
    IF (@ver LIKE '%standard edition%')
        SET @cmd += N'WITH (DATA_COMPRESSION=PAGE)';
    ELSE
        SET @cmd += N'WITH (ONLINE=ON, DATA_COMPRESSION=PAGE)';

    EXEC sp_executesql @cmd;
END;

--rollback:
--DROP INDEX IX_TableName_Description ON dbo.TableName;