`bcp in` 失败并显示“插入失败，因为以下 SET 选项设置不正确：'QUOTED_IDENTIFIER'”

Question

我导出了一个表（使用 EF Core 2.2 创建）bcp %database%.MyTable out MyTable.dmp -n -T -S %sqlserver%。

在重新导入它时，bcp %database%.MyTable in MyTable.dmp -n -T -S %sqlserver%我收到此错误：

SQLState = 37000, NativeError = 1934
Error = [Microsoft][ODBC Driver 13 for SQL Server][SQL Server]INSERT failed because the following SET options have incorrect settings: 'QUOTED_IDENTIFIER'. Verify that SET options are correct for use with indexed views and/or indexes on computed columns and/or filtered indexes and/or query notifications and/or XML data type methods and/or spatial index operations.

该表创建时QUOTED_IDENTIFIER = ON不包含任何计算列：

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [MyTable](
    [Id] [bigint] IDENTITY(1,1) NOT NULL,
    [OwnerLoginId] [bigint] NOT NULL,
    [RowVersion] [timestamp] NULL,
    [CreatedAt] [datetime2](7) NOT NULL,
    [DataId] [bigint] NOT NULL,
    [SomeString] [nvarchar](30) NOT NULL,
    [AnotherString] [nvarchar](30) NULL,
 CONSTRAINT [PK_MyTable] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO

ALTER TABLE [MyTable]  WITH CHECK ADD  CONSTRAINT [FK_MyTable_SomeOtherTable_DataId_SomeString] FOREIGN KEY([DataId], [SomeString])
REFERENCES [SomeOtherTable] ([DataId], [SomeString])
GO

ALTER TABLE [MyTable] CHECK CONSTRAINT [FK_MyTable_SomeOtherTable_DataId_SomeString]
GO

ALTER TABLE [MyTable]  WITH CHECK ADD  CONSTRAINT [FK_MyTable_DataTable_DataId] FOREIGN KEY([DataId])
REFERENCES [DataTable] ([Id])
GO

ALTER TABLE [MyTable] CHECK CONSTRAINT [FK_MyTable_DataTable_DataId]
GO

Answer 1

该BCP实用工具与连接QUOTED_IDENTIFIER OFF的向后兼容性。您需要添加-q选项以使用QUOTED_IDENTIFIER ON.

BCP 文档指示在-q指定选项时将整个限定表名称括在引号中。但是，当数据库名称不符合常规标识符命名规则时，这不起作用。数据库名称中的句点是这里的罪魁祸首。

一种解决方法是指定一个由 2 部分组成的表名称并使用以下-d选项单独指定数据库名称：

bcp "MySchema.MyTable" in "MyTable.dmp" -q -n -T -S "(localdb)\MSSQLLocalDB" -d "My.Database"

恕我直言，最好根据常规标识符的规则命名对象，以避免需要将名称括起来并像这样跳过箍。

该错误消息表明您正在使用除需要QUOTED_IDENTIFIER ON. 其中包括过滤索引、索引视图和 XML 索引。我的猜测是过滤索引或索引视图是这里的罪魁祸首。