I am trying to select with case on merge in one of my pet projects and I ended up getting error.
I believe this is not the complete query, it is huge in number of lines and I can copy only this from the terminal. I thought maybe someone could help with this code and resolve my issue.
MERGE OrderDetails AS TARGET
USING
(
SELECT OrderHeader.OrderNo, SalesOrderData.[LineNo], SalesOrderData.WebOrderNo, SalesOrderData.quantity,ISNULL(SalesOrderData.BasePrice,'0') AS BasePrice,ISNULL(SalesOrderData.CustomPrice,'0') AS CustomPrice,
ISNULL(SalesOrderData.FinishingPrice,'0')AS FinishingPrice,ISNULL(SalesOrderData.NonDiscount2,'0') AS NonDiscountable, ISNULL(SalesOrderData.TotalPrice,'0') AS TotalPrice,
ISNULL(SalesOrderData.ExtendedPrice,'0') As ExtendedPrice,SalesOrderData.Category,SalesOrderData.StockNo,SalesOrderData.SSD,SalesOrderData.VerticalSS,SalesOrderData.LorH, SalesOrderData.WorB, SalesOrderData.Species,
SalesOrderData.FinishingOption, SalesOrderData.Grade, SalesOrderData.Sheen, SalesOrderData.FinishingBrand,SalesOrderData.ColorName,SalesOrderData.ColorNo,SalesOrderData.StockPaint,
CASE
WHEN SalesOrderData.Category = 'TL' THEN '1.125'
WHEN SalesOrderData.Category = 'RP' THEN '1.125'
WHEN SalesOrderData.Category = 'CTL' THEN '1.25'
WHEN SalesOrderData.Category = 'CTL-BAH' THEN '1.25'
WHEN SalesOrderData.Category = 'CRP' THEN '1.25'
WHEN SalesOrderData.Category = 'IRP' THEN '1.07'
Else SalesOrderData.[SS Thickness]
END
, SalesOrderData.BRD, SalesOrderData.TRD, SalesOrderData.CRD, SalesOrderData.CRD2, SalesOrderData.CRD3, SalesOrderData.CRP1,SalesOrderData.CRP2, SalesOrderData.CRP3, SalesOrderData.Section1, SalesOrderData.Section2,
SalesOrderData.Section3, SalesOrderData.Section4,
CASE
WHEN SalesOrderData.PanelType = 'NA' THEN '-'
Else SalesOrderData.PanelType
END
FROM SalesOrderData
INNER JOIN OrderHeader ON SalesOrderData.WebOrderNo = OrderHeader.WebOrderNo
INNER JOIN OrderDetails ON SalesOrderData.WebOrderNo = OrderDetails.WebOrderNo)
AS SOURCE
ON Source.WebOrderNo = Target.WebOrderNo
WHEN NOT MATCHED BY TARGET
THEN
INSERT
(OrderNo, [LineNo], WebOrderNo, Quantity,BasePrice, CustomPrice, FinishingPrice, NonDiscountable,TotalPrice,ExtendedPrice, Category,StockNo, SSD, VerticalSS,LorH, WorB, Species,FinishingOption, Grade, Sheen,
FinishingBrand, ColorName,ColorNo,StockPaint,SSthick, BRD, TRD, CRD, CRD2, CRD3, CRP1Req,CRP2Req, CRP3Req, Section1, Section2, Section3, Section4,PanelType, RailConfig, ItemText6,SStype, ArchLow, ArchHigh,
LouverDirection, TrimType, TrimLouverDirection,MHLouverDirection, FCRLouverDirection,MHTR,MHCR1,MHCR2,MHCR3,UM,VBoardWidth, VBoardTotal, HBoardWidth,VBoardSpacing,ShutterComments,Custom1,Custom2,Custom3,Custom4,Custom5)
VALUES
(Source.OrderNo,Source.[LineNo], Source.WebOrderNo, Source.Quantity,Source.BasePrice, Source.CustomPrice, Source.FinishingPrice, Source.NonDiscountable,Source.TotalPrice,Source.Source.ExtendedPrice, Source.Category,
Source.StockNo, Source.SSD, Source.VerticalSS,Source.LorH, Source.WorB, Source.Species, Source.FinishingOption, Source.Grade, Source.Sheen, Source.FinishingBrand, Source.ColorName,Source.ColorNo,Source.StockPaint,
Source.SSthick, Source.BRD, Source.TRD, Source.CRD, Source.CRD2, Source.CRD3, Source.CRP1Req,Source.CRP2Req, Source.CRP3Req, Source.Section1, Source.Section2, Source.Section3, Source.Section4,Source.PanelType,
Source.RailConfig, Source.ItemText6,Source.SStype, Source.ArchLow, Source.ArchHigh, Source.LouverDirection, Source.TrimType, Source.TrimLouverDirection,Source.MHLouverDirection, Source.FCRLouverDirection,Source.MHTR,
Source.MHCR1,Source.MHCR2,Source.MHCR3,Source.UM,Source.VBoardWidth, Source.VBoardTotal, Source.HBoardWidth,Source.VBoardSpacing,SSource.hutterComments,Source.Custom1,Source.Custom2,Source.Custom3,Source.Custom4,
Source.Custom5);
Your CASE expressions need aliases. You have, for example:
CASE
WHEN SalesOrderData.Category = 'TL' THEN '1.125'
...
ELSE SalesOrderData.[SS Thickness]
END
,
It needs to be:
SomeMeaningfulAlias = CASE
WHEN SalesOrderData.Category = 'TL' THEN '1.125'
...
ELSE SalesOrderData.[SS Thickness]
END
,
Or:
CASE
WHEN SalesOrderData.Category = 'TL' THEN '1.125'
...
ELSE SalesOrderData.[SS Thickness]
END AS SomeMeaningfulAlias
,
In the below code, IN ELSE, what if I don't want to pass 'NOTEQUAL' and pass a NULL Value of Float
select from table as A {
A.objek,
max(case when A.atinn = '0000010530' then fltp_to_dec( A.atflv as abap.dec(5,3) else <what to enter here for null or no values > end ) as DDC
}
group by A.objek
If you need NULL then use NULL
select from table as A {
A.objek,
max(case when A.atinn = '0000010530'
then fltp_to_dec( A.atflv as abap.dec(5,3)
else NULL end ) as DDC
}
group by A.objek
or nothing as suggested by Larnu
select from table as A {
A.objek,
max(case when A.atinn = '0000010530'
then fltp_to_dec( A.atflv as abap.dec(5,3)
end ) as DDC
}
group by A.objek
I'm in the progress of migrating data from an old system. I have some boolean columns, which can be True, False or Null. Each column has a certain meaning. In the new database, I use a JSON Data object. What I would like to achieve is this:
OldTable:
ValueA, ValueB, ValueC, ValueD
Null , True , False , True
I create now Json data using a select on my old table and FOR JSON to get the Json object. The object should look something like this:
{
myObject: {
data: "valueB, ValueD"
}
}
My problem is the appending the values to the same "data" field.
So right now I can only do it with single values like this:
SELECT CASE WHEN ValueA == True THEN 'ValueA' END 'myObject.data',
CASE WHEN ValueB == True THEN 'ValueB' END 'myObject.data'
FROM myLegacyTable FOR JSON Path
This would obviously overwrite, what ever is in myObject.data, whenever both values are true. JSON_MODIFY seems not to be an option, as I'm not working on an existing Json object, but creating a new one. Maybe someone else has an idea?
You can just build your json string with a CASE WHEN. If you want to handle a variable number of columns you'll probably need dynamic TSQL.
This is a simple static version that should do the job:
declare #tmp table(ValueA bit, ValueB bit, ValueC bit, ValueD bit)
insert into #tmp values (null, 1 ,0 , 1)
SELECT JSON_QUERY('{"data":"' +
stuff(
case when ValueA = 1 then ',ValueA' else '' end
+ case when ValueB = 1 then ',ValueB' else '' end
+ case when ValueC = 1 then ',ValueC' else '' end
+ case when ValueD = 1 then ',ValueD' else '' end
,1,1,'')
+ '"}') as myObject
FROM #tmp FOR JSON Path, without_array_wrapper
Result:
I don't know how your source data is really stored but here is an example of what you need to do if this was all in SQL Server
data.property is not seperate items so don't split it into columns. It's just a single concatenated string. So concatenate everything up and remove the trailing comma.
DECLARE #MyTable TABLE (
RowID INT,
ValueA VARCHAR(5),
ValueB VARCHAR(5),
ValueC VARCHAR(5),
ValueD VARCHAR(5)
)
INSERT INTO #MyTable (RowID,ValueA,ValueB,ValueC,ValueD) VALUES
(1,NULL,'True','False','True'),
(2,'False',NULL,'True','True'),
(3,NULL,'False',NULL,NULL)
SELECT
ISNULL(
RTRIM(REVERSE(STUFF(REVERSE
(
CASE WHEN ValueA='True' THEN 'ValueA, ' ELSE '' END +
CASE WHEN ValueB='True' THEN 'ValueB, ' ELSE '' END +
CASE WHEN ValueC='True' THEN 'ValueC, ' ELSE '' END +
CASE WHEN ValueD='True' THEN 'ValueD, ' ELSE '' END
), 2, 1, ''))),'') AS 'myObject.data'
FROM #MyTable
FOR JSON Path
The huge construct required to remove trailing , is from here:
Remove the last character in a string in T-SQL?
Result:
[
{
"myObject": {
"data": "ValueB, ValueD"
}
},
{
"myObject": {
"data": "ValueC, ValueD"
}
},
{
"myObject": {
"data": ""
}
}
]
I am searching for a word match for the variable- #TextSearchWord
I have a #SearchCriteria variable which may have 5 values!
According to that value, i choose from which field i have to search my word!
-so i need to cascade the "CASE" statement inside the "WHERE" statement only and like other samples here inside the select statement !
SELECT COUNT(WordID) AS WordQty
FROM itinfo_QuranArabicWordsAll
WHERE (SiteID = #SiteID)
AND (QuranID = #QuranID)
AND (SuraID BETWEEN #StrtSuraID AND #EndSuraID)
AND (VerseOrder BETWEEN #StrtVerseSortOrder AND #EndVerseSortOrder)
AND (
-- here is my problem :
CASE
WHEN (#SearchCriteria = 'DictNM') THEN (WordDictNM = #TextSearchWord )
ELSE CASE
WHEN (#SearchCriteria = 'DictNMAlif') THEN (WordDictNMAlif = #TextSearchWord)
...
END
END
)
You don't need a CASE statement for this.
SELECT COUNT(WordID) AS WordQty
FROM itinfo_QuranArabicWordsAll
WHERE (SiteID = #SiteID)
AND (QuranID = #QuranID)
AND (SuraID BETWEEN #StrtSuraID AND #EndSuraID)
AND (VerseOrder BETWEEN #StrtVerseSortOrder AND #EndVerseSortOrder)
AND (
(#SearchCriteria = 'DictNM' AND WordDictNM = #TextSearchWord )
OR (#SearchCriteria = 'DictNMAlif' AND WordDictNMAlif = #TextSearchWord)
...
)
SQL WHERE clauses: Avoid CASE, use Boolean logic.
....
AND(
( #SearchCriteria = 'DictNM' AND WordDictNM = #TextSearchWord )
OR ( #SearchCriteria = 'DictNMAlif' AND WordDictNMAlif = #TextSearchWord )
)
i have a scenario where in , i need to calculate an employeee salary using a package , which gives me salary remaining for permanent employee if there is some prepayment and then convert the calculated value to a currency specified by the employee using another package.
How i have been doing this is:
CASE
WHEN ( ai.employee_type = 'PERMANENT' and ai.payment_status_flag='Y')
THEN EMP_UTILS_PKG.get_pay_amount_remaining( ai.employee_id )
ELSE ail.amount_remaining
END amount_remaining,
CASE
WHEN ( ai.salary_currency_code = NVL(find_currency('EMP_COMMON_CURRENCY'),ai.EMP_CURRENCY_CODE))
THEN CASE
WHEN ( ai.employee_type = 'PERMANENT' and ai.payment_status_flag='Y')
THEN EMP_UTILS_PKG.get_pay_amount_remaining( ai.employee_id )
ELSE ail.amount_remaining
END
ELSE EMP_API.convert_closest_amount_sql( x_from_currency => ai.EMP_CURRENCY_CODE ,x_to_currency => find_currency('EMP_COMMON_CURRENCY') ,x_amount =>( CASE
WHEN ( ai.employee_type = 'PERMANENT' and ai.payment_status_flag='Y')
THEN EMP_UTILS_PKG.get_pay_amount_remaining( ai.employee_id )
ELSE ail.amount_remaining
END) ,x_max_roll_days => -1)
END EMP_CONVERTED_AMOUNT_REMAINING,
I have repeated below condition 3 times in my query:
WHEN ( ai.employee_type = 'PERMANENT' and ai.payment_status_flag='Y')
THEN EMP_UTILS_PKG.get_pay_amount_remaining( ai.employee_id )
ELSE ail.amount_remaining
Is there a simpler approach for this, can we avoid repeating code like this?
You already use the function EMP_UTILS_PKG.get_pay_amount_remaining so why not create a PL/SQL function that encapsulates the logic and just call that in your multiple places.
You can use an inline view in the FROM clause to simplify this. Use the joins properly in your live code.
SELECT amount_remaining
, CASE
WHEN ai.salary_currency_code = NVL(find_currency('EMP_COMMON_CURRENCY')
,ai.EMP_CURRENCY_CODE)
THEN amount_remaining
ELSE EMP_API.convert_closest_amount_sql(
x_from_currency => ai.EMP_CURRENCY_CODE
,x_to_currency => find_currency('EMP_COMMON_CURRENCY')
,x_amount => amount_remaining
,x_max_roll_days => -1)
END EMP_CONVERTED_AMOUNT_REMAINING,
FROM (SELECT CASE
WHEN ai.employee_type = 'PERMANENT'
AND ai.payment_status_flag='Y'
THEN EMP_UTILS_PKG.get_pay_amount_remaining( ai.employee_id )
ELSE ail.amount_remaining
END amount_remaining
FROM table_name);