Question

当我在Azure SQL上运行以下查询时，它会出现以下错误：

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。

该脚本在本地sql server

上运行完全正常

脚本：

--Script for removing 'IsDeleted' column from all the table and copy the reverse values to the 'IsActive' column
DECLARE @name VARCHAR(50)
DECLARE @TQ VARCHAR(500)
DECLARE @ConstrainName VARCHAR(500)

--Declare cursor and loop it on INFORMATION_SCHEMA.TABLES and get table name in variable @name one by one
DECLARE db_cursor CURSOR
FOR
    SELECT  TABLE_NAME
    FROM    INFORMATION_SCHEMA.TABLES
    WHERE   TABLE_TYPE = 'BASE TABLE'

OPEN db_cursor   
FETCH NEXT FROM db_cursor INTO @name   

WHILE @@FETCH_STATUS = 0
    BEGIN   --If 'IsDeleTed' column is present
        IF COL_LENGTH(@name, 'IsDeleted') IS NOT NULL
            BEGIN -- If 'IsActive' column is present
                IF COL_LENGTH(@name, 'IsActive') IS NOT NULL
                    BEGIN -- Copy the reverse value from 'IsDeleted' column to 'IsActive'
                        EXEC ('UPDATE '+@name+' SET  [IsActive] = 1 - [IsDeleted]')
                    END      
                ELSE -- If 'IsActive' column is not present
                    BEGIN
                        -- Add column named 'IsActive'
                        EXEC('ALTER TABLE '+@name+' ADD IsActive bit')
                        -- Copy the reverse value from 'IsDeleted' column to 'IsActive'
                        EXEC ('UPDATE '+@name+' SET  [IsActive] = 1 - [IsDeleted]')
                        -- Add default value constraint for newly added column 'IsActive'
                        EXEC('ALTER TABLE '+@name+' ADD CONSTRAINT DF_'+@name+' DEFAULT(1) for [IsActive]')

                    END
                IF EXISTS ( SELECT  *
                            FROM    sysobjects o
                                    INNER JOIN syscolumns c ON o.id = c.cdefault
                                    INNER JOIN sysobjects t ON c.id = t.id
                            WHERE   o.xtype = 'D'
                                    AND c.name = 'IsDeleted'
                                    AND t.name = @name )
                    BEGIN -- If default constraint exist on column 'IsDeleted', get the constraint name
                        SET @ConstrainName = ( SELECT o.name
                                             FROM   sysobjects o
                                                    INNER JOIN syscolumns c ON o.id = c.cdefault
                                                    INNER JOIN sysobjects t ON c.id = t.id
                                             WHERE  o.xtype = 'D'
                                                    AND c.name = 'IsDeleted'
                                                    AND t.name = @name
                                           )
                        -- Drop the default constraint from the column 'IsDeleted'
                        EXEC('ALTER TABLE ' + @name + ' drop constraint ' + @ConstrainName)
                    END
                -- Finally drop the column 'IsDeleted'
                EXEC('ALTER TABLE '+@name+' DROP COLUMN [IsDeleted]')
            END

        FETCH NEXT FROM db_cursor INTO @name   
    END   

CLOSE db_cursor   
DEALLOCATE db_cursor

上面的脚本只是循环遍历数据库中的所有表，然后找到＆＃39; IsDeleted＆＃39;列并将其替换为＆＃39; IsActive＆＃39;柱。我在上面的查询中需要做哪些更改才能在 Azure SQL 上运行它？

我在db中有一个没有聚簇索引的表。它的架构：

--CREATE TEMP TABLE
CREATE TABLE [dbo].[Temp](
    [LayoutId] [int] NOT NULL,
    [UnitTypeId] [int] NOT NULL,
    [ProjectId] [int] NOT NULL,
    [LayoutName] [nvarchar](150) NOT NULL,
    [LayoutDescription] [nvarchar](max) NOT NULL,
    [IsActive] [bit] NOT NULL,
    [IsDeleted] [bit] NOT NULL,
    [CreatedTs] [datetime] NOT NULL,
    [ModifiedTs] [datetime] NULL,

    CONSTRAINT PK_UserGroup PRIMARY KEY NONCLUSTERED ([LayoutId], [ProjectId])
) 

GO

ALTER TABLE [dbo].[Temp] ADD  CONSTRAINT [DF_Temp_IsActive]  DEFAULT ((1)) FOR [IsActive]
GO

ALTER TABLE [dbo].[Temp] ADD  CONSTRAINT [DF_Temp_IsDeleted]  DEFAULT ((0)) FOR [IsDeleted]
GO

ALTER TABLE [dbo].[Temp] ADD  CONSTRAINT [DF_Temp_CreatedTs]  DEFAULT (getdate()) FOR [CreatedTs]
GO

由于我不想手动插入layoutId和ProjectId，因此我创建了具有非聚集索引的复合主键。我希望这张桌子只是这样。该错误是因为该表没有聚集索引吗？

Answer 1

是的，错误是因为该表没有聚集索引。

来自Azure SQL Database General Guidelines and Limitations

Microsoft Azure SQL数据库不支持没有聚簇索引的表。表必须具有聚簇索引。如果创建的表没有聚簇约束，则必须在表上允许插入操作之前创建聚簇索引。

通过扩展，这也意味着更新操作。因此，脚本中的以下动态生成的SQL在执行时会给出错误消息：

EXEC ('UPDATE '+@name+' SET  [IsActive] = 1 - [IsDeleted]')

在Azure sql server上运行脚本但在本地sql server上正常运行时出错

1 个答案: