表中的uniqueidentifier列的索引

Question

i have created a table where i used unique identifier(GUID) as a primary key of table. Now i need to create a indexing on my table which one will be best for me..i am going to use this table for error logging.

Following is my table structure

CREATE TABLE [dbo].[errors](
[error_id] [uniqueidentifier] NOT NULL,
[assembly_name] [varchar](50) NULL,
[method_name] [varchar](50) NULL,
[person_id] [int] NULL,
[timestamp] [datetime] NULL,
[description] [varchar](max) NULL,
[parameter_list] [varchar](max) NULL,
[exception_text] [nvarchar](max) NULL) 

So which table i use as a primary key and index.

Thanks in advance.

Answer 1

您可以将其用作PK，但如果将其用作聚簇索引则效果不佳。在这种情况下，GUID将被复制到所有nc索引键中，从而使其变得更宽大并可能导致性能问题。此外，这可能会导致页面溢出宽索引意味着将使用更多空间。如果您使用GUID来避免最后的页面争用问题，请尝试使用某种哈希技术来确保数据在差异页面上传输。在使用PK选择表单表时使用相同的哈希。