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Multiple DMLS in one when clause of MERGE Statement


Multiple DMLS in one when clause of MERGE Statement

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28.kanikasoni
28.kanikasoni
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Hi All,

I want to use 2 DMLS in When not Matched by target clause ie. first insert and then update.But I am getting problem while executing this code .Please provide a better way to do it.


MY CODE :


Merge Vacancy.TB_FTSearchData as A
using vacancy.TB_Vacancy as B
on A.FTSearchVacancyInternalID=B.VacancyInternalID and A.FTSearchContractID=B.VacancyContractID
When not Matched by source then Delete
When not Matched by target and B.VacancyFTSupdated=1 and B.VacancyStatusID=1 then

INSERT ([FTSearchVacancyInternalID]
,[FTSearchVacancyTitle]
,[FTSearchVacancyCleanDescription]
,[FTSearchVacancyCategoryName]
,[FTSearchVacancyTagName]
,[FTSearchContractID]
,[FTSearchVacancyLCID]
,[CreatedDate]
,[ModifiedDate])
Values (VacancyInternalID, VacancyTitle, VacancyCleanDescription, dbo.fn_GetCSV(B.VacancyInternalID,1) ,
dbo.fn_GetCSV(B.VacancyInternalID,2) , VacancyContractID,(Select la.LCID from ReferenceData.TB_Language la where la.languageInternalID =B.vacancyLanguageID), GETDATE(), NULL )
UPDATE
SET B.VacancyFTSupdated=3
WHERE VacancyFTSupdated=1 and VacancyStatusID=1 and VacancyInternalID in (Select FTSearchVacancyInternalID from Vacancy.TB_FTSearchData)


when matched and B.VacancyFTSupdated=2 AND B.VacancyStatusID=1 then
UPDATE
SET
A.FTSearchVacancyTitle=B.VacancyTitle
,A.FTSearchVacancyCleanDescription=VacancyCleanDescription
,A.FTSearchVacancyCategoryName=dbo.fn_GetCSV(B.VacancyInternalID,1)
,A.FTSearchVacancyTagName=dbo.fn_GetCSV(B.VacancyInternalID,2)
,[FTSearchContractID]=VacancyContractID
,[FTSearchVacancyLCID]=(Select la.LCID from ReferenceData.TB_Language la where la.languageInternalID =B.vacancyLanguageID)
,[ModifiedDate]=GETDATE()

OUTPUT $action,Deleted.*,Inserted.* ;

j.miner
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Please express any schemas that need to be created.

Please post the two tables you are referring to as CREATE statements.

Please supply the insert statements to populate the before mentioned tables.

John Miner
Crafty DBA
www.craftydba.com
28.kanikasoni
28.kanikasoni
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The Create table statements are


CREATE TABLE [Vacancy].[TB_Vacancy](
[VacancyInternalID] [bigint] IDENTITY(1,1) NOT NULL,
[VacancyExternalID] [nvarchar](40) NULL,
[VacancyReferenceNumber] [nvarchar](100) NULL,
[VacancyTitle] [nvarchar](400) NOT NULL,
[VacancyQuantity] [smallint] NULL,
[VacancyYearsOfExperience] [tinyint] NULL,
[VacancyCompetency] [nvarchar](max) NULL,
[VacancySalaryBaseRate] [numeric](14, 0) NULL,
[VacancySalaryTopRate] [numeric](14, 0) NULL,
[VacancySalaryFrequencyID] [int] NULL,
[VacancyBenefits] [nvarchar](max) NULL,
[VacancyStartDate] [datetime2](0) NULL,
[VacancyEndDate] [datetime2](0) NULL,
[VacancyRequirements] [nvarchar](max) NULL,
[VacancyDescription] [nvarchar](max) NULL,
[VacancyDescriptionAbstract] [nvarchar](1000) NULL,
[VacancyCleanDescription] [nvarchar](max) NULL,
[VacancyCleanDescriptionAbstract] [nvarchar](1000) NULL,
[VacancyApplyURI] [varchar](2000) NULL,
[VacancyApplicationCloseDate] [datetime2](0) NULL,
[VacancyPostingStartDate] [datetime2](0) NULL,
[VacancyPostingEndDate] [datetime2](0) NULL,
[VacancyContactID] [int] NULL,
[VacancyLongitude] [numeric](14, 10) NULL,
[VacancyLatitude] [numeric](14, 10) NULL,
[VacancyGeoLocation] [geography] NULL,
[VacancyLocationAccuracy] [tinyint] NULL,
[VacancyAddressLine1] [nvarchar](200) NULL,
[VacancyAddressLine2] [nvarchar](200) NULL,
[VacancyAddressLine3] [nvarchar](200) NULL,
[VacancyPostCode] [nvarchar](20) NULL,
[VacancyCityID] [int] NULL,
[VacancyProvinceID] [int] NULL,
[VacancyCountryID] [int] NULL,
[VacancyRegionID] [int] NULL,
[VacancyLanguageID] [int] NOT NULL,
[VacancyCurrencyID] [int] NULL,
[VacancyAdditionalInformation] [xml] NULL,
[VacancyClientInternalID] [int] NULL,
[VacancyStatusID] [tinyint] NOT NULL,
[VacancyContractTypeID] [int] NULL,
[VacancyShiftID] [int] NULL,
[VacancyIndustryID] [int] NULL,
[VacancyPostingPersonContactID] [int] NULL,
[VacancyContractID] [int] NOT NULL,
[VacancyBrandID] [int] NULL,
[VacancyBusinessUnitID] [int] NULL,
[VacancyBranchID] [int] NULL,
[CreatedBy] [nvarchar](100) NOT NULL,
[CreatedDate] [datetime2](0) NOT NULL,
[ModifiedBy] [nvarchar](100) NULL,
[ModifiedDate] [datetime2](0) NULL,
[DeletedBy] [nvarchar](100) NULL,
[DeletedDate] [datetime2](0) NULL,
[VacancyFTSupdated] [tinyint] NOT NULL,
[VacancyAnnualSalaryBaseRate] [numeric](14, 0) NULL,
[VacancyAnnualSalaryTopRate] [numeric](14, 0) NULL,
CONSTRAINT [PK_VacancyInternalID] PRIMARY KEY CLUSTERED
(
[VacancyInternalID] 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



CREATE TABLE [Vacancy].[TB_FTSearchData](
[FTSearchVacancyInternalID] [int] NOT NULL,
[FTSearchVacancyTitle] [nvarchar](400) NOT NULL,
[FTSearchVacancyCleanDescription] [nvarchar](max) NULL,
[FTSearchVacancyCategoryName] [nvarchar](4000) NULL,
[FTSearchVacancyTagName] [nvarchar](4000) NULL,
[FTSearchContractID] [int] NOT NULL,
[FTSearchVacancyLCID] [int] NOT NULL,
[CreatedDate] [datetime2](0) NOT NULL,
[ModifiedDate] [datetime2](0) NULL,
CONSTRAINT [PK_FTSearch_VacancyInternalID] PRIMARY KEY CLUSTERED
(
[FTSearchVacancyInternalID] 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
ChrisM@Work
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28.kanikasoni (4/12/2013)
Hi All,

I want to use 2 DMLS in When not Matched by target clause ie. first insert and then update.But I am getting problem while executing this code .Please provide a better way to do it.....


Can you describe the problems?

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
ChrisM@Work
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MERGE Vacancy.TB_FTSearchData as t -- target
USING vacancy.TB_Vacancy as s -- source
ON t.FTSearchVacancyInternalID = s.VacancyInternalID
AND t.FTSearchContractID = s.VacancyContractID

WHEN not Matched by source THEN DELETE

WHEN not Matched by target and s.VacancyFTSupdated = 1 and s.VacancyStatusID = 1 THEN

INSERT (
[FTSearchVacancyInternalID]
,[FTSearchVacancyTitle]
,[FTSearchVacancyCleanDescription]
,[FTSearchVacancyCategoryName]
,[FTSearchVacancyTagName]
,[FTSearchContractID]
,[FTSearchVacancyLCID]
,[CreatedDate]
,[ModifiedDate])

VALUES (
s.VacancyInternalID,
s.VacancyTitle,
s.VacancyCleanDescription,
dbo.fn_GetCSV(s.VacancyInternalID,1) ,
dbo.fn_GetCSV(s.VacancyInternalID,2) ,
s.VacancyContractID,
(Select la.LCID
from ReferenceData.TB_Language la
where la.languageInternalID = s.vacancyLanguageID),
GETDATE(),
NULL )

-- second statement not permitted, you could use the OUTPUT for this
/*
UPDATE
SET B.VacancyFTSupdated = 3
WHERE VacancyFTSupdated = 1
and VacancyStatusID = 1
and VacancyInternalID in (Select FTSearchVacancyInternalID from Vacancy.TB_FTSearchData)
*/
when matched and s.VacancyFTSupdated = 2 AND s.VacancyStatusID = 1 then

UPDATE
SET
FTSearchVacancyTitle = s.VacancyTitle
,FTSearchVacancyCleanDescription = s.VacancyCleanDescription
,FTSearchVacancyCategoryName = dbo.fn_GetCSV(s.VacancyInternalID,1)
,FTSearchVacancyTagName = dbo.fn_GetCSV(s.VacancyInternalID,2)
,[FTSearchContractID] = s.VacancyContractID
,[FTSearchVacancyLCID] = (
Select la.LCID
from ReferenceData.TB_Language la
where la.languageInternalID = s.vacancyLanguageID)
,[ModifiedDate] = GETDATE()

OUTPUT $action, Deleted.*, Inserted.* ;



“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
28.kanikasoni
28.kanikasoni
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I want to use 2 statements in case of when matched clause

i.e

Update all the values of Vacancy.TB_FTSearchData
also
update the VacancyFTSupdated from table vacancy.TB_Vacancy
Arjun Sivadasan
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I want this, I want that - no gratitude?
richykong
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I don't believe you can perform multiple DMLs from the MERGE.

You can however perform an insert from the output of a merge.

From msdn OUTPUT CLAUSE example K.
"INSERT INTO Production.ZeroInventory (DeletedProductID, RemovedOnDate)
SELECT ProductID, GETDATE()
FROM
( MERGE Production.ProductInventory AS pi
USING (SELECT ProductID, SUM(OrderQty) FROM Sales.SalesOrderDetail AS sod
JOIN Sales.SalesOrderHeader AS soh
ON sod.SalesOrderID = soh.SalesOrderID
AND soh.OrderDate = '20070401'
GROUP BY ProductID) AS src (ProductID, OrderQty)
ON (pi.ProductID = src.ProductID)
WHEN MATCHED AND pi.Quantity - src.OrderQty <= 0
THEN DELETE
WHEN MATCHED
THEN UPDATE SET pi.Quantity = pi.Quantity - src.OrderQty
OUTPUT $action, deleted.ProductID) AS Changes (Action, ProductID)
WHERE Action = 'DELETE'; "

ChrisM@Work
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28.kanikasoni (4/17/2013)
I want to use 2 statements in case of when matched clause

i.e

Update all the values of Vacancy.TB_FTSearchData
also
update the VacancyFTSupdated from table vacancy.TB_Vacancy


The simple answer is - you can't. Not with SQL Server. But as has already pointed out, you could use your captured output.

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
28.kanikasoni
28.kanikasoni
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Thanks ChrisM@Work ,will try to use output data.


My thought:
If you want something, then you can achieve it. You will get all you want in life if you help enough other people get what they want.

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