Question

我遇到一个奇怪的问题，即同一脚本有不同的结果。下面是我的代码：

DesiredSize.Height

当我使用SQL Server Management Studio 2014 UI运行此程序时，当我在ExtractForStandardCustomer表中插入内容时，触发器将正常执行。它使用所需的记录填充ExtractForCustomerLoyalty表...

但是，当我尝试通过cmd运行相同的脚本时：

MaxHeight

它抛出此错误：

--Create table ExtractForCustomerLoyalty--------------------------------------------------------------------
--This contains the customer extract records and is used by CustomerLoyaltyExporter batch job.
--Version 1 - 8/14/2018
IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'ExtractForCustomerLoyalty')
BEGIN
    Print 'Creating [dbo].[ExtractForCustomerLoyalty] table...'

    CREATE TABLE [dbo].[ExtractForCustomerLoyalty](
        [rowID] [int] NOT NULL,
        [sequenceCount] [int] NOT NULL,
        [extractTime] [datetime] NOT NULL,
        [extractData] [varchar](8000) NOT NULL,
        [exported] [varchar](1) NOT NULL DEFAULT ('N')
    ) ON [PRIMARY]
END
GO


--Create trigger customer_extract---------------------------------------------------------------------------
--This trigger is used to create customer extract records
--Version 1 - 8/14/2018
IF EXISTS (SELECT * FROM sys.objects WHERE [object_id] = OBJECT_ID(N'['+OBJECT_SCHEMA_NAME(object_id)+N'].[customer_extract]') AND [type] = 'TR')
BEGIN
    Print 'Dropping [dbo].[customer_extract] Trigger'
    DROP TRIGGER [dbo].[customer_extract];
END;
GO

CREATE TRIGGER [dbo].[customer_extract] on [CCSV4].[dbo].[ExtractForStandardCustomer]
AFTER INSERT
AS
    SET ANSI_NULLS ON
    SET ANSI_PADDING ON
    SET ANSI_WARNINGS ON
    SET ARITHABORT ON
    SET CONCAT_NULL_YIELDS_NULL ON
    SET QUOTED_IDENTIFIER ON

    --Just in case we need to deactivate trigger
    DECLARE @Cinfo VARBINARY(128)  
    SELECT @Cinfo = Context_Info()  
    IF @Cinfo = 0x55555  
        RETURN

    --Declaration
    DECLARE @rowID int
    DECLARE @dataXML XML
    DECLARE @data VARCHAR(MAX) = ''

    -- Get the complete extractData xml from ExtractForStandardCustomer table
    SET @rowID = (select rowID from inserted)
    SELECT @data = @data + extractData FROM ExtractForStandardCustomer where rowID = @rowID order by sequenceCount
    SET @dataXML = TRY_CAST(@data as XML)

    IF @dataXML IS NULL
        RETURN

    -- Check the CustomerUpdate type (Create / Update / Delete)
    IF (@dataXML.exist('(/CustomerExtract/Change)') = 1)
        -- Customer Update
        INSERT INTO [dbo].[ExtractForCustomerLoyalty](rowID, sequenceCount, extractTime, extractData)
        SELECT i.rowID, i.sequenceCount, i.extractTime,
            '' + '|' +
            '' + '|' +
            ISNULL(@dataXML.value('(//After/Customer/Loyalty/LoyaltyID)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//After/Customer/Loyalty/JoinLocation)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//After/Customer/Loyalty/JoinDate)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//After/Customer/Loyalty/FirstPurchaseDate)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//After/Customer/Loyalty/FirstPurchaseLocation)[1]', 'VARCHAR(8000)'),'') + '|'
            ---More here
        FROM inserted i
    ELSE
        BEGIN
        --Customer Create / Delete
        INSERT INTO [dbo].[ExtractForCustomerLoyalty](rowID, sequenceCount, extractTime, extractData)
        SELECT top 1 i.rowID, i.sequenceCount, i.extractTime,
            '' + '|' +  --CUSTOMER_ID (NULL for now)
            '' + '|' +  --HOUSEHOLD_ID (NULL for now)
            ISNULL(@dataXML.value('(//Customer/Loyalty/LoyaltyID)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//Customer/Loyalty/JoinLocation)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//Customer/Loyalty/JoinDate)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//Customer/Loyalty/FirstPurchaseDate)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//Customer/Loyalty/FirstPurchaseLocation)[1]', 'VARCHAR(8000)'),'') + '|' +
            ISNULL(@dataXML.value('(//Customer/Name/First)[1]', 'VARCHAR(8000)'),'') + '|'
            --More here

        FROM inserted i
        END
GO

Answer 1

不同的工具和库具有不同的默认设置。

来自SET QUOTED_IDENTIFIER：

连接时，SQL Server的SQL Server本机客户端ODBC驱动程序和SQL Server的SQL Server本机客户端OLE DB提供程序会自动将QUOTED_IDENTIFIER设置为ON。可以在ODBC数据源，ODBC连接属性或OLE DB连接属性中进行配置。对于来自DB-Library应用程序的连接，SET QUOTED_IDENTIFIER的默认值为OFF。

如果您不满意接受默认值，或者（如此处所示）希望无论使用什么默认值都能够可预测地运行脚本，请显式设置所需的选项。

还要特别注意QUOTED_IDENTIFIER和ANSI_NULLS是在定义模块（例如触发器，存储的proc等）时捕获的。您想确保将这些设置应用到您的连接上，而不使用任何特定的模块定义。

在执行-I时始终指定SQLCMD命令行参数是一个好习惯（也许是最好的做法），以便默认情况下QUOTED_IDENTIFIER处于打开状态。为了向后兼容，SQLCMD中的设置默认为关闭。

SQL SERVER-通过SQLCMD和MSSQL运行SQL脚本时，相同的代码会有不同的结果

1 个答案: