In the order by clause, can we specify a function? It works for inbuilt function like ORDER BY NEWID() since NEWID() is a function. But there I want to specify ordering by a custom function.
ALTER Function [dbo].[Func_RetentionPriorityStatus]
(
#Priority varchar(3)
)
Returns varchar(50)
As
Begin
declare #ID int
set #ID = (select rop.ID from dbo.RetentionOutboundPriority rop where rop.Archived = 0);
declare #ColName varchar(50)
select
#ColName = Col.value('local-name(.)', 'varchar(max)')
from (select *
from dbo.RetentionOutboundPriority
where ID = #ID
for xml path(''), type) as T(XMLCol)
cross apply
T.XMLCol.nodes('*') as n(Col)
where Col.value('.', 'varchar(10)') = #Priority
RETURN #ColName
End
So the query is like this
select * from dbo.RetentionTele rt
inner join dbo.RetentionTeleNotInterested rtni
on rt.ID = rtni.RetentionTeleID
order by
And this is where the problem is, I have specified
order by [dbo].[Func_RetentionPriorityStatus](#currentPriority)
order by (select [dbo].[Func_RetentionPriorityStatus](#currentPriority))
order by + (select [dbo].[Func_RetentionPriorityStatus](#currentPriority))
order by convert(varchar, (select dbo.[Func_RetentionPriorityStatus](1)))
order by + convert(varchar, (select dbo.[Func_RetentionPriorityStatus](1)))
But none of them is working. Now I am not even sure if this can be done, and if it, can anyone please tell me what am I doing wrong?
I think you would want to pass the ID to you function as parameter. Then your function will return different values for each row and it would be used in order by.
Related
I need to be able to SELECT a specific row because SET only holds one row.
On line 5, I have to declare #json so that OPENJSON can work.
And that's why i need the RowNo at this point in the query. However, at this point, RowNo is not defined.
How would i go about fixing this problem? It seems that it doesn't matter how i spin it, something is always gonna be undefined. How would i point to a specific row on line 5 as desired?
DECLARE #loopCounter INT = 0;
WHILE #loopCounter < (SELECT count(Id) FROM ProcessEventMessages)
BEGIN
PRINT 'Changing...';
DECLARE #json NVARCHAR(MAX) = (SELECT Data FROM ProcessEventMessages WHERE RowNo = #loopCounter) -- here
SELECT * FROM OPENJSON(#json)
WITH (
message varchar(200) '$.message',
machineId varchar(200) '$.machineId',
machineName int '$.machineName',
ipAddress varchar(200) '$.ipAddress',
LocalTime datetime2(7) '$.time'
) AS ChangeTime;
;WITH CTE AS(
SELECT *,ROW_NUMBER() OVER(Order by Id ASC) AS RowNo
FROM ProcessEventMessages
)
UPDATE CTE
SET Data = JSON_MODIFY(#json,'$.time', FORMAT(DATEADD(hour,-2,JSON_VALUE(#json,'$.time')),'yyyy-MM-ddTHH:mm:ss.fff'))
WHERE RowNo = #loopCounter
SET #loopCounter = #loopCounter + 1;
END;
PRINT 'Done';
GO
You can use CROSS APPLY instead of a loop. Try:
WITH CTE AS (
SELECT
LocalTime
, Data
FROM dbo.ProcessEventMessages
CROSS APPLY OPENJSON(Data)
WITH (
LocalTime datetime2(7) '$.time'
) AS ChangeTime
)
UPDATE CTE
SET Data = JSON_MODIFY(Data,'$.time', FORMAT(DATEADD(hour,-2,LocalTime),'yyyy-MM-ddTHH:mm:ss.fff'));
I want to save data in a variable and use it later in a procedure.
UPDATE acc_Account
SET acc_Account.CompanyID = ( SELECT TOP 1
utl_Company.CompanyID
FROM utl_Company
ORDER BY CompanyID DESC
)
WHERE acc_Account.AccountNumber = #AccountNumber
how can I save the CompanyID in a variable to use it in an insert statement later on?
Have this in the beginning of your code:
declare #var varchar(20) -- change the data type according to your needs
set #var = (SELECT TOP 1 utl_Company.CompanyID FROM utl_Company ORDER BY CompanyID DESC)
Create a select local variable before the update statement, then set it, then use it.
DECLARE #companyID INT;
SELECT #companyID = "YOUR QUERY";
I think the efficient way would be using OUTPUT clause
DECLARE #TAB TABLE (CompanyID BIGINT )
UPDATE acc_Account
SET acc_Account.CompanyID = (
SELECT max(CompanyID) FROM utl_Company
)
output inserted.CompanyID into #TAB
WHERE acc_Account.AccountNumber = #AccountNumber
SELECT * FROM #TAB
I would like to create a view at the end of the following request.
I know that 'create view' must be the first statement in a query batch. My problem is that for this query i must use a variable (#listOfIDRUB).
This variable is only fill correctly at the end of my little script.
I also have tried to create the view before my first declaration but it created a problem with "DECLARE".
So is it possible to create a view easily from the result of my script or i have to do something else ?
DECLARE #CounterResId int;
DECLARE #lePath varchar(255);
DECLARE #listOfIDRUB TABLE (EXTERNALREFERENCE uniqueidentifier, ID varchar(255), DOCID varchar(255) );
DECLARE #Max int;
SET #lePath = '';
SET #CounterResId = 1;
SET #Max = (SELECT COUNT(*) FROM SYNTHETIC..EXTRANET_PURGE WHERE TYPE_SUPPR = 'ResId')
WHILE (#CounterResId <= #Max )
BEGIN;
set #lePath =
(select tmp.lePath from
(
select row_number() over(order by path)as NumLigne, CONCAT(path, '%' ) as lePath from RUBRIQUE
WHERE MODELE = 'CAEEE64D-2B00-44EF-AA11-6B72ABD9FE38'
and CODE in (SELECT ID FROM SYNTHETIC..EXTRANET_PURGE where TYPE_SUPPR='ResId')
) tmp
WHERE tmp.NumLigne = #CounterResId)
INSERT INTO #listOfIDRUB(EXTERNALREFERENCE, ID, DOCID)
SELECT SEC.EXTERNALREFERENCE , SEC.ID, SEC.DOCUMENTID
FROM WEBACCESS_FRONT..SECTIONS sec
inner join rubrique rub ON rub.ID_RUBRIQUE = sec.EXTERNALREFERENCE
inner join template_tree_item tti ON tti.id_template_tree_item = rub.modele
inner join template t ON t.id_template = tti.template
WHERE t.CODE IN (SELECT TEMPLATE_CODE from SYNTHETIC..EasyFlowEngineListTemplateCode)
and rub.path like #lePath
print #CounterResId;
print #lePath;
set #CounterResId = #CounterResId + 1;
END;
select * from #listOfIDRUB;
Instead of select * from #listOfIDRUB
i wanted create view test as select * from listOfIDRUB
I have also tried create view test as (all my request)
Whenever you ask something about SQL please state your RDBMS (product and version). The answers are highly depending on this...
From your code I assume this is SQL Server.
So to your question: No, a VIEW must be "inlineable" (single-statement or "ad-hoc") statement.
You might think about a multi-statement UDF, but this is in almost all cases a bad thing (bad performance). Only go this way, if your result table will consist of rather few rows!
Without knowing your tables this is rather blind walking, but you might try this (add parameters, if you can transfer external operations (e.g. filtering) into the function):
CREATE FUNCTION dbo.MyFunction()
RETURNS #listOfIDRUB TABLE (EXTERNALREFERENCE uniqueidentifier, ID varchar(255), DOCID varchar(255) )
AS
BEGIN
DECLARE #CounterResId int;
DECLARE #lePath varchar(255);
DECLARE #Max int;
SET #lePath = '';
SET #CounterResId = 1;
SET #Max = (SELECT COUNT(*) FROM SYNTHETIC..EXTRANET_PURGE WHERE TYPE_SUPPR = 'ResId')
WHILE (#CounterResId <= #Max )
BEGIN;
set #lePath =
(select tmp.lePath from
(
select row_number() over(order by path)as NumLigne, CONCAT(path, '%' ) as lePath from RUBRIQUE
WHERE MODELE = 'CAEEE64D-2B00-44EF-AA11-6B72ABD9FE38'
and CODE in (SELECT ID FROM SYNTHETIC..EXTRANET_PURGE where TYPE_SUPPR='ResId')
) tmp
WHERE tmp.NumLigne = #CounterResId)
INSERT INTO #listOfIDRUB(EXTERNALREFERENCE, ID, DOCID)
SELECT SEC.EXTERNALREFERENCE , SEC.ID, SEC.DOCUMENTID
FROM WEBACCESS_FRONT..SECTIONS sec
inner join rubrique rub ON rub.ID_RUBRIQUE = sec.EXTERNALREFERENCE
inner join template_tree_item tti ON tti.id_template_tree_item = rub.modele
inner join template t ON t.id_template = tti.template
WHERE t.CODE IN (SELECT TEMPLATE_CODE from SYNTHETIC..EasyFlowEngineListTemplateCode)
and rub.path like #lePath
--print #CounterResId;
--print #lePath;
set #CounterResId = #CounterResId + 1;
END;
RETURN;
END
You can call it like this (very similar to a VIEW)
SELECT * FROM dbo.MyFunction();
And you might even use it in joins...
And last but not least I'm quite sure, that one could solve this without declares and a loop too...
Below is a piece of my stored proc.
I am getting error as invalid object MyCount, Please let me know where am going wrong
;With MyCount AS
(
Select DispatchToRegionId ,FolderNo, row_number() OVER(ORDER BY FolderNo DESC) as Row
from tblTransite where FolderNo = #VAL group by DispatchToRegionId,FolderNo
)
select #cnt = COUNT(*) from MyCount
if #cnt = 0
begin
set #InvalidFolderNo = #VAL
print 'cnt -' + cast(#cnt as varchar(max) ) + 'invalid folder - ' + cast(#InvalidFolderNo as varchar(max) )
return
end
select #Region =( Select top 1 DispatchToRegionId from MyCount
order by Row desc )
MSDN clearly states the following about the scope of a Common Table Expression (CTE):
A common table expression (CTE) can be thought of as a temporary result set that is defined within the execution scope of a single SELECT, INSERT, UPDATE, DELETE, or CREATE VIEW statement
Once you have run the first select query, you can no longer use the CTE for your next one. You may want to consider storing the data in a temporary table or table variable if you want to access it in multiple queries.
MyCount is available only for the first query after it. Try to select all you need in this one query:
;With MyCount AS
(
Select DispatchToRegionId ,FolderNo, row_number() OVER(ORDER BY FolderNo DESC) as Row
from tblTransite where FolderNo = #VAL group by DispatchToRegionId,FolderNo
)
SELECT
#cnt = (select COUNT(*) from MyCount),
#Region =( Select top 1 DispatchToRegionId from MyCount
order by Row desc )
if #cnt = 0
begin
set #InvalidFolderNo = #VAL
print 'cnt -' + cast(#cnt as varchar(max) ) + 'invalid folder - ' + cast(#InvalidFolderNo as varchar(max) )
return
end
This was resolved. The statement was in another part of the stored procedure.
The stored procedure I'm writing won't allow me to do this:
declare #dtTopDate datetime
select top 1 #dtTopDate = date_build
from database..table
where database..table.parent = #Parent
and database..table.child = #Child
order by date_build desc
Gives me this error:
Column "database..table.date_build" is
invalid in the ORDER BY clause because
it is not contained in either an
aggregate function or the GROUP BY
clause.
What am I doing wrong?
[Edit] There is no group by statement here. SQL2005.
Here is some more context:
if #Notify = 0
begin
declare #dtTopDate datetime
select top 1 #dtTopDate = date_build
from database..table
where database..table.parent = #Parent
and database..table.child = #Child
order by date_build desc
insert
into database2..table
(parent, child, notification_date, change_date)
values (#Parent, #Child, #dtTopDate, getdate())
return
end
This works for me, but I'm not sure if this is what you are trying to do b/c your example has some errors.
use Test
go
CREATE TABLE [dbo].[MyTable]
(
[MyTableId] [uniqueidentifier] NOT NULL,
[MyDate] [datetime] NOT NULL,
CONSTRAINT [PK_MyTable] PRIMARY KEY CLUSTERED([MyTableId] ASC,[MyDate] ASC)
)
GO
CREATE PROCEDURE ProcTopDate
(
#MyDate datetime OUT
)
AS
BEGIN
SET NOCOUNT ON;
SELECT TOP 1
#MyDate = [MyDate]
FROM [Test].[dbo].[MyTable]
order by MyDate
END
GO
insert into MyTable(MyTableId, MyDate)
values(newid(), getdate())
go
declare #MyDate datetime
exec ProcTopDate #MyDate OUT
print #MyDate
Instead of SELECT TOP 1 ... ORDER BY ...
Why not try SELECT MAX( ..
DECLARE #dtTopDate datetime
SELECT #dtTopDate = MAX(date_build)
from database..table
where database..table.parent = #Parent
and database..table.child = #Child
What version of SQL are you using? It works fine for me on MS SQL Server 2005 (ionce I fix the declaration).
Honestly the only thing I can see wrong is that #dtTopDate =/= #dtLatestDate
Apart from that, there is no GROUP BY clause in your SQL statement.
I just ran this and it worked fine.
declare #OrderDate datetime
select top 1 #OrderDate = OrderDate
from Orders
where Orders.CustomerID = 'ALFKI'
and Orders.EmployeeID = 4
order by OrderDate desc
SELECT #OrderDate
Try qualifying the columns correctly to avoid any ambiguities or x-database schema issue
declare #dtTopDate datetime
select top 1
#dtTopDate = [database]..[table].date_build
FROM
[database]..[table]
where
[database]..[table].parent = #Parent
and [database]..[table].child = #Child
order by
[database]..[table].date_build desc
Or alias it
declare #dtTopDate datetime
select top 1
#dtTopDate = foo.date_build
FROM
[database]..[table] foo
where
foo.parent = #Parent
and foo.child = #Child
order by
foo.date_build desc
The problem was in another part of the stored procedure. I was using a count(*) elsewhere and it required a group by. Thanks for the help.
Try SELECT #dtLatestDate = TOP 1 date_build...
if you want to get really tricky, in T-SQL you can try using the row_number() method and an inner select:
select * from
(
select
db.groupId
, db.date_build
, date_build_rank = row_number() over ( partition by db.groupId order by db.date_build desc)
from
#date_build_tbl db
) as a
where a.date_build_rank < 2;