SQL創建表存儲過程沒有正確設置默認值

Question

我想用存儲過程創建一個表。我將表格作爲CREATE語句編寫，並將文件內容複製到我的過程中，這很好。除了設置默認值時，它將第一列默認設置爲整個第二行。

這裏的程序：

CREATE PROCEDURE [dbo].[spCreatetblLocation] 
AS 
EXEC 
(' 
SET ANSI_NULLS ON 
SET QUOTED_IDENTIFIER ON 

CREATE TABLE [dbo].[tblLocation](
    [pkLocationID] [int] IDENTITY(1,1) NOT NULL, 
    [fldName] [nvarchar](100) NOT NULL, 
    [fldPath] [nvarchar](1000) NOT NULL, 
    [fkYearID] [int] NOT NULL, 
    CONSTRAINT [PK_LocationID] PRIMARY KEY CLUSTERED 
    (
    [pkLocationID] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'' FOR [fldName] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'' FOR [fldPath] 
') 

執行後，列[fldName]有FOR [fldName] ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'' FOR [fldPath]

默認值這是有道理的，它只是不承認在（N「」）的第二個引號，但爲什麼不？我該如何解決它？

UPDATE：

我已經瞭解到，創建表的正確方法是通過閱讀和執行SQL腳本文件。這使數據操作和數據庫操作保持獨立，並且更易於管理。

Answer 1

，你需要用額外的撇號來逃避它。嘗試：

CREATE PROCEDURE [dbo].[spCreatetblLocation] 
AS 
EXEC 
(' 
SET ANSI_NULLS ON 
SET QUOTED_IDENTIFIER ON 

CREATE TABLE [dbo].[tblLocation](
    [pkLocationID] [int] IDENTITY(1,1) NOT NULL, 
    [fldName] [nvarchar](100) NOT NULL, 
    [fldPath] [nvarchar](1000) NOT NULL, 
    [fkYearID] [int] NOT NULL, 
    CONSTRAINT [PK_LocationID] PRIMARY KEY CLUSTERED 
    (
    [pkLocationID] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'''' FOR [fldName] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'''' FOR [fldPath] 
') 

目前尚不清楚（至少對我來說）你爲什麼做這種方式雖然，而不是隻：

CREATE PROCEDURE [dbo].[spCreatetblLocation] 
AS 
SET ANSI_NULLS ON 
SET QUOTED_IDENTIFIER ON 

CREATE TABLE [dbo].[tblLocation](
    [pkLocationID] [int] IDENTITY(1,1) NOT NULL, 
    [fldName] [nvarchar](100) NOT NULL, 
    [fldPath] [nvarchar](1000) NOT NULL, 
    [fkYearID] [int] NOT NULL, 
    CONSTRAINT [PK_LocationID] PRIMARY KEY CLUSTERED 
    (
    [pkLocationID] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'' FOR [fldName] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'' FOR [fldPath] 

也不清楚爲什麼要創建內表一個過程，特別是在不檢查它是否已經存在的情況下 - 你能保證這個表在每次你的程序運行時都不會存在嗎？

Answer 2

不是說是做通過存儲過程創建一個表正確的事情，但...你需要逃避你的報價：如果您在SQL字符串中有一個撇號

CREATE PROCEDURE [dbo].[spCreatetblLocation] 
AS 
EXEC 
(' 
SET ANSI_NULLS ON 
SET QUOTED_IDENTIFIER ON 

CREATE TABLE [dbo].[tblLocation](
    [pkLocationID] [int] IDENTITY(1,1) NOT NULL, 
    [fldName] [nvarchar](100) NOT NULL, 
    [fldPath] [nvarchar](1000) NOT NULL, 
    [fkYearID] [int] NOT NULL, 
    CONSTRAINT [PK_LocationID] PRIMARY KEY CLUSTERED 
    (
    [pkLocationID] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'''' FOR [fldName] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'''' FOR [fldPath] 
') 

Answer 3

你要帶引號的兩倍時，在字符串中：

CREATE PROCEDURE [dbo].[spCreatetblLocation] 
AS 
EXEC (' 
    SET ANSI_NULLS ON 
SET QUOTED_IDENTIFIER ON 

CREATE TABLE [dbo].[tblLocation](
    [pkLocationID] [int] IDENTITY(1,1) NOT NULL, 
    [fldName] [nvarchar](100) NOT NULL, 
    [fldPath] [nvarchar](1000) NOT NULL, 
    [fkYearID] [int] NOT NULL, 
    CONSTRAINT [PK_LocationID] PRIMARY KEY CLUSTERED 
    (
    [pkLocationID] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'''' FOR [fldName] 

ALTER TABLE [dbo].[tblLocation] ADD DEFAULT N'''' FOR [fldPath] 
')`