Question

我正在尝试将详细信息插入到已成功完成的Emp Table中。但我的要求是在下次再次尝试插入细节时首先截断表。因此我写了truncate语句，它不断地逐行截断。

结果是表格中出现的文件的最后一行。

有人可以帮我修改程序吗？

ALTER PROCEDURE [dbo].[Insert_Deatils]

    @Name(100),
    @DESCRIPTION(100),
    @Address(100)


    AS
    BEGIN
    SET NOCOUNT ON;
    declare @CountNew varchar(100)   

    set @CountNew=(select count(*) from [dbo].[Emp_Details] ) 
    if @CountNew>=1 

    truncate table [dbo].[Emp_Details] 
    else

          INSERT INTO [dbo].[Emp_Details]
           ([Name],
        [DESCRIPTION],
        [Address]
    )
         VALUES
               (

    @Name,
    @DESCRIPTION,
    @Address
    )
    END

    Begin
    if exists(select 1 from [dbo].[Emp_Details] where Name='Raul')

    Delete from [dbo].[Emp_Details] where AIRCRAFT_REGISTRATION='Raul'

    End

Answer 1

要考虑的一些事项......

TRUNCATE删除表格中的所有行，并重置所有IDENTITY列。它是一个未记录在事务日志中的操作，因此非常快。

DELETE将删除行，但会记录操作。此外，任何IDENTITY列都不会重新种植。

如果您只是想在开始运行proc时清空表，那么就足够了：

TRUNCAE TABLE [dbo].[Emp_Details] 

INSERT INTO [dbo].[Emp_Details]
([Name], [DESCRIPTION], [Address])
VALUES
(@Name, @DESCRIPTION, @Address)

只有在您回复DELETE操作的结果之前需要删除特定结果时，才应使用最后的INSERT。如果您的目标是在再次触发proc时清空表，则截断将处理该问题。

还有一些关于我最后几行的内容。

Begin
if exists(select 1 from [dbo].[Emp_Details] where Name='Raul')

Delete from [dbo].[Emp_Details] where AIRCRAFT_REGISTRATION='Raul'

End

你的意思是这样做吗？

if exists(select 1 from [dbo].[Emp_Details] where Name='Raul')
Begin
   Delete from [dbo].[Emp_Details] where AIRCRAFT_REGISTRATION='Raul'
End

（同样，如果您的唯一目标是清空表格，则没有必要）

另外，您提示有错误，但未发布错误。

Answer 2

Stored Procedure中的修正很少，请查看这是否符合您的要求。

好的，现在得到了你的要求，在TRUNCATE或Loop之前调用Bulk Insert语句。这可确保Table为空以插入新记录。

TRUNCATE TABLE [dbo].[Emp_Details]

然后将Procedure调用Table

来调用

ALTER PROCEDURE [dbo].[Insert_Deatils]
@Name VARCHAR(100),
@DESCRIPTION VARCHAR(100),
@Address VARCHAR(100)
AS
BEGIN
    SET NOCOUNT ON;

    INSERT INTO [dbo].[Emp_Details]
        ([Name],[DESCRIPTION],[Address])
         VALUES
        (@Name,@DESCRIPTION,@Address)


    BEGIN
        IF EXISTS(SELECT 1 FROM [dbo].[Emp_Details] WHERE NAME = 'Raul')

        DELETE FROM [dbo].[Emp_Details] WHERE AIRCRAFT_REGISTRATION = 'Raul'
    END 
END

Table-Valued Parameters

或者您可以使用CREATE TYPE Emp_Details AS TABLE ( [Name] VARCHAR(100) , [Description] VARCHAR(100) , [Address] VARCHAR(100)); GO CREATE PROCEDURE [dbo].[Insert_Deatils] @Tmp Emp_Details READONLY AS BEGIN SET NOCOUNT ON TRUNCATE TABLE [dbo].[Emp_Details] INSERT INTO [dbo].[Emp_Details] ([Name] ,[Description] ,[Address]) SELECT [Name] ,[Description] ,[Address] FROM @Tmp; BEGIN IF EXISTS(SELECT 1 FROM [dbo].[Emp_Details] WHERE NAME = 'Raul') DELETE FROM [dbo].[Emp_Details] WHERE AIRCRAFT_REGISTRATION = 'Raul' END END GO /* Declare a variable that references the type. */ DECLARE @Emp AS Emp_Details; /* Add data to the table variable. */ INSERT INTO @Emp ([Name], [Description], [Address]) SELECT [Name], [Description], [Address] FROM Emp_Details1; /* Pass the table variable data to a stored procedure. */ EXEC [dbo].[Insert_Deatils] @Emp; GO一次性传递所有行。

USE <Database>
GO

CREATE TYPE Emp_Details AS TABLE   
( [Name]        VARCHAR(100)  
, [Description] VARCHAR(100) 
, [Address]     VARCHAR(100));  
GO


CREATE TABLE Emp_Details
( [Name]        VARCHAR(100)  
, [Description] VARCHAR(100) 
, [Address]     VARCHAR(100));  
GO 


CREATE TABLE Emp_Details1
( [Name]        VARCHAR(100)  
, [Description] VARCHAR(100) 
, [Address]     VARCHAR(100));  
GO 


INSERT INTO Emp_Details1 VALUES ('John','Test','123')
INSERT INTO Emp_Details1 VALUES ('John1','Test1','1234')
INSERT INTO Emp_Details1 VALUES ('John2','Test2','1235')
GO

SELECT * FROM Emp_Details

/* Declare a variable that references the type. */  
DECLARE @Emp AS Emp_Details;  

/* Add data to the table variable. */  
INSERT INTO @Emp ([Name], [Description], [Address])  
    SELECT [Name], [Description], [Address]
    FROM Emp_Details1;  

/* Pass the table variable data to a stored procedure. */  
EXEC [dbo].[Insert_Deatils]  @Emp;  
GO 

SELECT * FROM Emp_Details

您可以查看Table-Valued Parameters以获取有关相同

的更多信息

在我的结尾尝试了下面的示例，似乎工作正常

from sklearn import svm
from sklearn.feature_extraction.text import TfidfVectorizer

label = ['organisasi','organisasi','organisasi','organisasi','organisasi','lokasi','lokasi','lokasi','lokasi','lokasi']
text = ['Partai Anamat Nasional','Persatuan Sepak Bola', 'Himpunan Mahasiswa','Organisasi Sosial','Masyarakat Peduli','Malioboro','Candi Borobudur','Taman Pintar','Museum Sejarah','Monumen Mandala']

vectorizer = TfidfVectorizer(min_df=1)

X = vectorizer.fit_transform(text)
y = label

klasifikasi = svm.SVC()

klasifikasi = klasifikasi.fit(X,y) #training

test_text = ['Partai Perjuangan']
test_vector = vectorizer.fit_transform(test_text)

prediksi = klasifikasi.predict([test_vector]) #test

print(prediksi)

存储过程中的截断错误

2 个答案: