无法更改Azure Sql中的复合主键

Question

表定义:

CREATE TABLE [dbo].[tbl](
    [Id1] [int] NOT NULL,
    [Id2] [int] NOT NULL,
    [Id3] [int] NOT NULL,
    [IsActive] [bit] NOT NULL,
    [CreatedTs] [datetime] NOT NULL,
 CONSTRAINT [PK_tbl] PRIMARY KEY CLUSTERED 
(
    [Id1] ASC,
    [Id2] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
)

GO

ALTER TABLE [dbo].[tbl] ADD  CONSTRAINT [DF_tbl_IsActive]  DEFAULT ((1)) FOR [IsActive]
GO

ALTER TABLE [dbo].[tbl] ADD  CONSTRAINT [DF_tbl_CreatedTs]  DEFAULT (getdate()) FOR [CreatedTs]
GO

在上表中,我使用" Id1 "和" Id2 "组合复合主键.现在我想在复合主键中包含" Id3 ",因为我正在做以下事情:

ALTER TABLE tbl
DROP CONSTRAINT PK_tbl


ALTER TABLE [dbo].[tbl] ADD  CONSTRAINT [PK_tbl] PRIMARY KEY CLUSTERED 
(
    [Id1] ASC,
    [Id2] ASC,
    [Id3] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) 
GO

上面的查询在我的本地sql server db上运行得很好,但是当我在Azure db上运行它时出现错误:

此版本的SQL Server不支持没有聚簇索引的表.请创建聚簇索引,然后重试.

我应该如何修改azure sql上的复合主键？

Answer 1

Azure SQL数据库的最新更新(V12)允许您拥有没有聚簇索引的表(即堆).如果将服务器升级到最新版本,则可以运行查询以成功修改PK.

V12支持的其他功能:http://azure.microsoft.com/en-us/documentation/articles/sql-database-preview-whats-new/

如何升级:http://azure.microsoft.com/en-us/documentation/articles/sql-database-preview-upgrade/