Question

这是我从.txt文件BULK插入两个表的SQL语句：

BEGIN TRANSACTION ImportNutritionDataToDatabase;

USE [AppTest];

-------------------------------------------------------
-- Food Group Descriptions #1
-------------------------------------------------------

DECLARE @Path NVARCHAR(1000) = 'D:\CodePurehope\App\Dev\NutrientData\FD_GROUP.txt';

CREATE TABLE #TempTable
 (
    [FoodGroupCode] VARCHAR(666) NOT NULL, 
    [FoodGroupDescription] VARCHAR(60) NOT NULL
 )

DECLARE @sql NVARCHAR(4000) = 'BULK INSERT #TempTable FROM ''' + @Path + ''' WITH ( FIELDTERMINATOR =''^'', ROWTERMINATOR =''\n'' )';
EXEC(@sql);

UPDATE #TempTable
   SET [FoodGroupCode] = REPLACE([FoodGroupCode], '~', ''),
       [FoodGroupDescription] = REPLACE([FoodGroupDescription], '~', '')
GO

INSERT INTO [dbo].[FoodGroupDescriptions]
(
    [FoodGroupCode],
    [FoodGroupDescription]
)
SELECT
    [FoodGroupCode],
    [FoodGroupDescription]
FROM
    #TempTable
GO

DROP TABLE #TempTable

-------------------------------------------------------
-- Food Description #2
-------------------------------------------------------

DECLARE @Path NVARCHAR(1000) = 'D:\CodePurehope\App\Dev\NutrientData\FOOD_DES.txt';

CREATE TABLE #TempTable2
 (
    [NutrientDatabankNumber] [varchar](10) NOT NULL,
    [FoodGroupCode] [varchar](10) NOT NULL,
    [LongDescription] [varchar](200) NOT NULL,
    [ShortDescription] [varchar](200) NOT NULL,
    [CommonName] [varchar](100) NULL,
    [ManufacturerName] [varchar](165) NULL,
    [Survey] [varchar](10) NULL,
    [ReferenceDescription] [varchar](235) NULL,
    [RefusePercentage] [tinyint] NULL,
    [ScientificName] [varchar](65) NULL,
    [NitrogenFactor] [decimal](18, 2) NULL,
    [ProteinFactor] [decimal](18, 2) NULL,
    [FatFactor] [decimal](18, 2) NULL,
    [CarbohydratesFactor] [decimal](18, 2) NULL
 )

DECLARE @sql NVARCHAR(4000) = 'BULK INSERT #TempTable2 FROM ''' + @Path + ''' WITH ( FIELDTERMINATOR =''^'', ROWTERMINATOR =''\n'' )';
EXEC(@sql);

UPDATE #TempTable2
   SET [NutrientDatabankNumber] = REPLACE([NutrientDatabankNumber], '~', ''),
       [FoodGroupCode] = REPLACE([FoodGroupCode], '~', ''),
       [LongDescription] = REPLACE([LongDescription], '~', ''),
       [ShortDescription] = REPLACE([ShortDescription], '~', ''),
       [CommonName] = REPLACE([CommonName], '~', ''),
       [ManufacturerName] = REPLACE([ManufacturerName], '~', ''),
       [Survey] = REPLACE([Survey], '~', ''),
       [ReferenceDescription] = REPLACE([ReferenceDescription], '~', ''),
       [RefusePercentage] = REPLACE([RefusePercentage], '~', ''),
       [ScientificName] = REPLACE([ScientificName], '~', ''),
       [NitrogenFactor] = REPLACE([NitrogenFactor], '~', ''),
       [ProteinFactor] = REPLACE([ProteinFactor], '~', ''),
       [FatFactor] = REPLACE([FatFactor], '~', ''),
       [CarbohydratesFactor] = REPLACE([CarbohydratesFactor], '~', '')
GO

INSERT INTO [dbo].[FoodDescriptions]
(
    [NutrientDatabankNumber],
    [FoodGroupCode],
    [LongDescription],
    [ShortDescription],
    [CommonName],
    [ManufacturerName],
    [Survey],
    [ReferenceDescription],
    [RefusePercentage],
    [ScientificName],
    [NitrogenFactor],
    [ProteinFactor],
    [FatFactor],
    [CarbohydratesFactor]
)
SELECT
    [NutrientDatabankNumber],
    [FoodGroupCode],
    [LongDescription],
    [ShortDescription],
    [CommonName],
    [ManufacturerName],
    [Survey],
    [ReferenceDescription],
    [RefusePercentage],
    [ScientificName],
    [NitrogenFactor],
    [ProteinFactor],
    [FatFactor],
    [CarbohydratesFactor]
FROM
    #TempTable2
GO

DROP TABLE #TempTable2


COMMIT TRANSACTION ImportNutritionDataToDatabase;
GO

如何在不重复路径的情况下使用一个temptable等来简化此操作？

Answer 1

这正是SSIS的意思。我建议将其用于文件中的ETL。它将在开发过程中提高效率，并且可以配置为更容易处理无效数据元素。更改路径也更容易，因为您可以在每个环境中的SQL代理作业中覆盖它们。

多表的MSSQL批量插入可避免重复

1 个答案: