Infinite Recursive?

Nov 24, 1999

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DB Engine :: Infinite Recursive Trigger

May 28, 2015

I have a after update trigger that calculates one of the columns based on other column values. It has to be a trigger and only fires an update statement against the table itself when the column has changed. At a simple level it is doing something similar to the code below

IF UPDATE(Col1)
update MyTable SET Col2 = Col1 WHERE Col2 <> Col1

It works everywhere except on one site where the trigger causes itself to recurse until it reaches the 32 level error. It can be fixed by checking whether there and any records in the inserted table at the top. Like so.

IF EXISTS (SELECT * FROM inserted)
begin
IF UPDATE(Col1)
update MyTable SET Col2 = Col1 WHERE Col2 <> Col1
end

However, I would like to know whether there is some system setting other than "nested triggers" that I am missing that would cause the behaviour.

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Transact SQL :: Types Don't Match Between Anchor And Recursive Part In Column ParentID Of Recursive Query

Aug 25, 2015

Msg 240, Level 16, State 1, Line 14

Types don't match between the anchor and the recursive part in column "ParentId" of recursive query "tmp". Below is query,

DECLARE @TBL TABLE (RowNum INT, DataId int, DataName NVARCHAR(50), RowOrder DECIMAL(18,2) NULL, ParentId INT NULL)
INSERT INTO @TBL VALUES
(1, 105508, 'A', 1.00, NULL),
(2, 105717, 'A1', NULL, NULL),
(3, 105718, 'A1', NULL, NULL),
(4, 105509, 'B', 2.00, NULL),
(5, 105510, 'C', 3.00, NULL),
(6, 105514, 'C1', NULL, NULL),

[code]....

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How To Convert Recursive Function Into Recursive Stored Procedure

Jul 23, 2005

I am having problem to apply updates into this function below. I triedusing cursor for updates, etc. but no success. Sql server keeps tellingme that I cannot execute insert or update from inside a function and itgives me an option that I could write an extended stored procedure, butI don't have a clue of how to do it. To quickly fix the problem theonly solution left in my case is to convert this recursive functioninto one recursive stored procedure. However, I am facing one problem.How to convert the select command in this piece of code below into an"execute" by passing parameters and calling the sp recursively again.### piece of code ############SELECT @subtotal = dbo.Mkt_GetChildren(uid, @subtotal,@DateStart, @DateEnd)FROM categories WHERE ParentID = @uid######### my function ###########CREATE FUNCTION Mkt_GetChildren(@uid int, @subtotal decimal ,@DateStart datetime, @DateEnd datetime)RETURNS decimalASBEGINIF EXISTS (SELECTuidFROMcategories WHEREParentID = @uid)BEGINDECLARE my_cursor CURSOR FORSELECT uid, classid5 FROM categories WHERE parentid = @uiddeclare @getclassid5 varchar(50), @getuid bigint, @calculate decimalOPEN my_cursorFETCH NEXT FROM my_cursor INTO @getuid, @getclassid5WHILE @@FETCH_STATUS = 0BEGINFETCH NEXT FROM my_cursor INTO @getuid, @getclassid5select @calculate = dbo.Mkt_CalculateTotal(@getclassid5, @DateStart,@DateEnd)SET @subtotal = CONVERT (decimal (19,4),(@subtotal + @calculate))ENDCLOSE my_cursorDEALLOCATE my_cursorSELECT @subtotal = dbo.Mkt_GetChildren(uid, @subtotal,@DateStart, @DateEnd)FROM categories WHERE ParentID = @uidENDRETURN @subtotalENDGORod

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What Exactly Is Infinite Clickthrough?

Nov 1, 2007

Another thread (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2347749&SiteID=1) got me wondering: what exactly is this "infinite clickthrough" feature that SSRS Enterprise Edition has? Searching for "infinite clickthrough" yields little but frustration - nearly all of the hits are merely pages explaining that Enterprise Edition has it and the other editions don't, without ever describing what exactly it is.

Near as I can tell, "infinite clickthrough" refers to a feature of ReportBuilder when used in conjunction with Report Models on SSRS Enterprise whereby ReportBuilder will synthesize a clickthrough report on the fly, and has nothing to do with the ability to build "clickthrough" reports using links (the "Navigation" tab on the Properties of most any reporting services object).

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Infinite Loop In BOL Code!?

Apr 15, 2004

This code is from BOL (in index type: "DDLs-SQL Server"):
Take a look at error handling .. what happens if one of the three cmd.execute within the [Done:] hanlde fails?

It looks to me like we would have an infinite loop! .. am I missing something here?

BOL CODE EXAMPLE:
-----------------------------
Dim Cn As New ADODB.Connection
Dim Cmd As New ADODB.Command

' If the ADOTestTable does not exist, go to AdoError.
On Error GoTo AdoError

' Connect using the SQLOLEDB provider.
cn.Provider = "sqloledb"
cn.Properties("Data Source").Value = "MyServerName"
cn.Properties("Initial Catalog").Value = "northwind"
cn.Properties("Integrated Security").Value = "SSPI"
cn.Open

' Set up command object.
Set Cmd.ActiveConnection = Cn
Cmd.CommandText = "DROP TABLE ADOTestTable"
Cmd.CommandType = adCmdText
Cmd.Execute

Done:
Cmd.CommandText = "SET NOCOUNT ON"
Cmd.Execute
Cmd.CommandText = "CREATE TABLE ADOTestTable (id int, name char(100))"
Cmd.Execute
Cmd.CommandText = "INSERT INTO ADOTestTable values(1, 'Jane Doe')"
Cmd.Execute
Cn.Close
Exit Sub

AdoError:
Dim errLoop As Error
Dim strError As String

' Enumerate Errors collection and display properties of
' each Error object.
Set Errs1 = Cn.Errors
For Each errLoop In Errs1
Debug.Print errLoop.SQLState
Debug.Print errLoop.NativeError
Debug.Print errLoop.Description
Next

GoTo Done

End Sub
-------------------------------------------------------

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TOP Solves Infinite Query ???

Oct 9, 2007

Hi There

I have a query that runs every night. It has been fine for months. Yesterday it started to run infinately.

When i execute it it never returns.

BUT when i add a top clause to othe query it works, now in my experience this normally happens because you are now eliminating the "bad" row with the top clause, so the join that causes it to run infinately now never occurs.

HOWEVER i run the exact query with a TOP 730 cluase and it only return 720 rows, so i am not eliminating any rows ?

Basically i have a query that runs infinately but if i add a top clause that does eliminate any rows it works ?

But if i increase the top cluase to 800 it runs inifnatley again, but it only returns 720 rows ?

I am stumped, can anyone shed some light on this please.

Thanx

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Infinite Loop In Cursor

Jul 5, 2006

Hi

I have an infinite loop in a trigger I and I cant reslove it.

In my system the user updates a stock table from the GUI and on the update I need to check values to see if I need to add records to a StockHistory table. For Example: If the user changes the grade of Product X from A to B then I need to add a new line in StockHistory for product X grade A that decrements the total number of products in the warehouse. Similary I need to increase the quantity of stock for Product X grade B.

I had the trigger working for single updates but now when stock is added to the database (from another db) it has status of 'New'. This isn't actually 'in stock' until the user sets the status to 'Goods In'. This process will then update the status for all records in the category. This caused my trigger to fail as the 'inserted' table now contains many records.

Now the problem I have is the trigger is in an infinite loop. It always shows the id of the first record it finds and the @Quantity values increases as expected. I've taken all my procesing code out of the trigger and adding some debugging stuff but it still doesnt work:

CREATE TRIGGER [StockReturns_on_change] ON [dbo].[StockReturns]
FOR UPDATE
AS

DECLARE INDIVIDUAL Cursor --- Cursor for all the rows being updated

FOR
SELECT Id FROM inserted

OPEN INDIVIDUAL

FETCH NEXT FROM INDIVIDUAL INTO @Id

select @Quantity = 1

print @@FETCH_STATUS
print @Id
print @Quantity

WHILE @@FETCH_STATUS = 0
begin

select @Quantity = @Quantity + 1

print @@FETCH_STATUS
print @Id
print @Quantity

-- Get the next row from the inserted table
FETCH NEXT FROM INDIVIDUAL INTO @Id

End -- While loop on the cursor

-- no close off the cursors
CLOSE INDIVIDUAL
DEALLOCATE INDIVIDUAL

Can you help me please?

Kind Regards

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Cursor Causing Infinite Loop

Dec 13, 2007

Hi i have a cursor in a Stored Procedure. The problem is that it's poiting to the first row and causing an infinite loop on it.
How can i stop this and make it go to all rows. Here is my code.

Declare @CountTSCourtesy int
Declare @WaiterName nvarchar(100), @CursorRestaurantName nvarchar (100)
Declare waiter_cursor CURSOR FOR

SELECT new_waiteridname, new_restaurantname
FROM dbo.FilteredNew_CommentCard
Where new_dateofvisit between @FromDate and @ToDate and new_restaurantname = @Restaurant
Open waiter_cursor
FETCH NEXT FROM waiter_cursor
into @WaiterName,@CursorRestaurantName
While @@FETCH_STATUS=0

BEGIN
Exec WaitersCountExCourtesy @WaiterName,@CursorRestaurantName

END
Close waiter_cursor
Deallocate waiter_cursor
END

Thanks in advance...

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T-SQL (SS2K8) :: Simple Cursor Runs Infinite Loop?

Dec 23, 2014

I'm trying to build a simple cursor to understand how they work. From the temp table, I would like to print out the values of the table, when I run my cursor it just keeps running the output of the first row infinitely. I just want it to print out the 7 rows in the table ...

IF OBJECT_ID('TempDB..#tTable','U') IS NOT NULL
DROP TABLE #tTable
CREATE TABLE #tTable

[Code]....

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Executing SSIS Package Using Jobs In SQL Server Agent Infinite Loop

Jan 4, 2008

I'm trying to execute my package using schedule in SQL Server Agent, I've already tested my package by run it manually in Integration services and it works. The table created, the data from my flat file also inserted into the table correctly and the result return with success.

The question is why when I execute my package using SQL Server Agent, the SQL Server Agent keep executing my package like infinite loop until I stop the job. after I stop the job there is no error generated by sql server. Could you figured why this happen?? I've already tried to upgrade into SP2 and set the package protection level and still not get good result from it. thank you.

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Recursive SQL

Feb 9, 2007

I need to help in writing stored procedure to recursively delete Categories and ads for those categories
Simplified table views:
Category: CategoryID, Name, ParentCategoryID
Ads: AdID, Name, CategoryID
Please help

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How Can I Use Recursive CTE Here

Jun 1, 2007

Hello Everyone,
         I have a purchase order table that holds say 2 columns. PO and OrgPO. That is Purchase Order # and Original Purchase Order # respectively. Assume i have the following rows in the table.
PO         OrgPO
--          ------
po1        NULL
co1        po1
co2        co1
co3        co2
po2        NULL
cpo1      po2
po3        NULL
Now what i would like to report in the output is the PO and along with the lastly generated change order for that po. For eg,
PO     LastCO
--      ------
po1     co3
po2     cpo1
po3     po3
Currently i 'm using function to achieve this effect and i believe this is not the efficient way. I would like to generate this in a much efficient way. Please help me to achieve this.

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Recursive SQL

Jun 11, 2004

Hi

I have problem is getting list of all the Tree Level Employees.here is the my table structure

Manager ~ SubOrdinate
1 ~ 2
1 ~ 3
1 ~ 4
2 ~ 5
2 ~ 6
2 ~ 7
3 ~ 8
3 ~ 9
4 ~ 10
5 ~ 11
SO ON
I NEED THE WAY , HOW I CAN GET THE HIRE
LEVELS ( EG IF I PASS MANAGER(EMPLOYEE NO) 1 IT SHOULD DISPLAY HIS 1 LEVELS AND 2, 3 SO ON LEVELS OF LEVELS
OUTPUT COULD BE ,

PASSED EMPLOYEE NO : 1
LEVEL ~ EMPLOYEE
1 ~ 2
1 ~ 3
1 ~ 4
2.1 ~ 5
2.1 ~ 6
2.1 ~ 6
3.1 ~ 7
SO ON THAT EMPLOYEE RELATED INFORMATION
( ITS LIKE MLM LEVELS)
CAN ANYBODY HELP IN THE ,

THANKS

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Recursive Cte Within A Cte

May 12, 2006

is there any way to define a recursive cte within another cte. I have defined a recursive cte which works great for finding the different versions of a given item. What I would like to do is to define a set of items for which I want to find the different versions.

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How To Query The Using Recursive?

Jun 10, 2007

Hello,
I have the following tables:

Article(articleID,CategoryID,ArticleTitle)
Categories(categoryID,ParentID,CategoryTitle)
I am trying to retrieve the main category ID for a specific article ID.
For example lets say I have this data:
Article:

1, 10 , "some title"
2,10,"some title"
3,11,"some title"
Categories:
1, NULL , "some title"
2, 1, "some title"
10, 2, "some title"
11, 10 , "some title"

In this example I want to know who is the main category of article 3.
The query should return the answer: 1
Thats because:

The article ID 3 is inside category 11.
Parent for category 11 is 10.
Parent for category 10 is 2.
Parent for category 2 is 1
and Parent for category 1 is NULL, which means category 1 has no parents and it is the main category.
Query will return article id, category id, main_category_id, ArticleTitle, CategoryTitle (some union between 2 tables)
Do you have any suggestions for such query?
Thanks all.

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Recursive Query ..

Jan 18, 2008

Recursive quey to show products with "custom defines fields" related by Classifications, instead of per product Hello, I’m working on a project .. .

I’m desperating due to the
complex (for me and also I think for some others) sql query that I need to
write, to show the products with his “custom defined fields�? that are inside a ProductsFieldsByClassification
table that holds this mentioned “custom defined fieds�? according to the Classifications
table, on where the Products can be found trought the productsClassifications
table.

CustomFields can be defined
and set for the products, trought his Classifications (instead of define a
custom field for each product (that consume a lot of data), I decide to use it as
I explain)

I will to know the properly
SQL QUERY to show a list of products with the ProductsFieldsByClassifications and ProductsFieldsValuesByClassifications:

As example on
a Requested ID_Classification = 16 (Torents/Games/Dreamcast/PAL), the products must be show with the
ProductsFields and Values that has the DBA for the:

·
requested
ID_Classification

o
PAL (ID_Classification: 16)

·
AND all
the Classifications that belongs above (trought ID_ParentClassification) that are :

o
Torrents (ID_Classification:
1) that will show the products values for the “Size�?

o
Games (ID_Class..:4) ß this classification has no CustomFields so none from this one.

o
Dreamcast (ID_Class..:14 )
that will show his ID_Classification(14) product field “Levels�? value (but not “AllowSave�? as not have value for any product)

Hmnn i show a graphic that i design for (feel to click over to see at correct resolution)

I also write asp.net tutorials. For those interested see my blog at http://abmartin.wordpress.com

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Recursive Tsql

Feb 26, 2008

i have a table like this
parentid |    childid    |   description
1             2                     blah
1              3
1              4
2              23
2              24
5              8
3              10
and i want to give the parentid 1 and get all the children
i have a cursor now like this but i dont know how to make it recursive any help?

1
2 DECLARE @childid nvarchar(50)
3 DECLARE ItemStruc CURSOR FOR
4
5 SELECT cmponent_prt_no , parent_part_no
6 FROM oauser_prod_structure
7 WHERE parent_part_no = @parentid
8
9 OPEN ItemStruc
10 FETCH NEXT FROM ItemStruc
11 INTO @childNum , @parentid
12
13 WHILE @@FETCH_STATUS = 0
14 BEGIN
15
16 print @childNum +'is the a child to: ' +@parentid

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Recursive SQL Query

Sep 21, 2004

I have a tough issue with a query.

I have the following structure

Table: Users

UserId ParentUserId
1 1
2 1
3 2
4 1
5 4
6 5

I need to write a stored procedure that takes in UserId as parameter and returns everyone under him/her.

So if Param=1 it would return result set of 2,3,4,5,6

Anyone done this before or have any ideas?

Thanks,
ScAndal

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Recursive Query Help

Jul 20, 2005

Hi,

Does anyone know how to do an sql recursion queries?

I believe it involves a view with a union.

I have a User Table and in that table i have a employee_id and a
boss_id. What i'd like to do is to find all employees under a certain
boss.
For example,

Employee_ID Boss_ID
1
2                     1
3
4                     3
5                     2

So if i'd like to know who are under the employee_id = 1 it will return
employee_id 2 and 5 since employee 2 also is the boss of employee_id =
5.

To do that i'd have to have recursion query.

Thanks,

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Recursive Triggers

Dec 14, 2000

I'm using exec sp_dboption 'ilgadmin', 'recursive triggers',true

I made

create trigger
dbo.templates_ondelete
on templates for delete
as
begin
delete pages
where templateid = (select [id] from deleted)
end
go

create trigger
dbo.pages_ondelete
on pages for delete
as
begin
delete pageItems
where pageid = (select [id] from deleted)
end
go

The second trigger must be started by the first one.

But it doens't work because if I do
delete from templates where id = 2 more than one page (7 pages) are deleted and the second trigger doesn't work (it can only delete one by one in pageitems!)

Is there any option in SQL Server that I forgot or can I use an other methode

Best regards
Axel

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Recursive Join

Dec 3, 2006

CREATE TABLE EMPLOYEE(
Initialschar(3)Not Null,
EmpNamechar(25)Not Null,
CellPhonechar(20),
ExperienceLevel char(12)Not Null,
SupervisorInitials char(3)
CONSTRAINTEmployeePKPRIMARY KEY(Initials),
CONSTRAINTExperienceLevelCK CHECK (ExperienceLevel in
('Junior', 'Senior', 'Master', 'SuperMaster')),
CONSTRAINT SupervisorFK FOREIGN KEY (SupervisorInitials)
REFERENCES EMPLOYEE (Initials)
ON DELETE NO ACTION
ON UPDATE NO ACTION
);

INSERT INTO EMPLOYEE VALUES ('JLM', 'Joe Morrone', '(603) 489-2245', 'Master', NULL)
INSERT INTO EMPLOYEE VALUES ('BNF', 'Brenda Fowler', '(603) 467-8894', 'SuperMaster', NULL)
INSERT INTO EMPLOYEE VALUES ('JG', 'John Gromek', '(603) 678-9987', 'Junior', 'BNF')
INSERT INTO EMPLOYEE VALUES ('BEK', 'Barbara Kimball', '(603) 884-2312', 'Master', 'BNF')

Write a query which reports each employee's name and
-- experience level and the name of his/her supervisor

need help with this query,
the ouput is this ;

Employee ExperienceLevel Supervisor
------------------------- --------------- -------------------------
Barbara Kimball Master Brenda Fowler
John Gromek Junior Brenda Fowler

(2 row(s) affected)

Enhance your query to report all employees, whether or
-- or not they have a supervisor.
some help would be gratifull.

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Recursive Search

Jun 5, 2002

Hi,
I have a table with 2 fields in it Circuit_ID and Parent_Circuit_ID and I'd like to pass a stored procedure a circuit_ID and get a resultset back of all Circuit_ID's that are associated with the original.

That means it needs to look at each record and do another search on all circuits that have that parent ID, recursively.

Does anyone have any good ideas on the best way to do this.

Appreciate any help.

Steve

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Help With Recursive Function

Nov 1, 2007

I have a table of product types, the table is layed like this:

TypeID
TypeName
ParentID

each type has a ParentID equal to one of the other types TypeID (except the very top level types) to build a hierarchy with several levels.

I need a way of giving a function a single TypeID, and have it return a table that has the the TypeID of every type underneath it in the hierarchy. it could go down several levels (like 10 or more) so it needs to recursively work...

I'm just completely lost...

I can get this to work just fine in VB... but in VB i can just use a nice little for each loop...

any ideas?

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Recursive Function

Feb 1, 2005

I am trying to write a recursive function which allows me to provide a hierarchical structure from an employee table but I am getting an error

Server: Msg 512, Level 16, State 1, Procedure GetEmployee, Line 10
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

Is there a way in which I can write a recursive function to do this. Or would I need to use cursors, multiple functions???
Any help or examples would be great. Thanks for your help

CREATE FUNCTION GetEmployee(@EmpID as int)
RETURNS @Employee Table
(
StaffNo int,
ParentStaffNo int
)
AS
BEGIN
DECLARE @ManagerID int
SET @ManagerID = (SELECT [id] FROM eii.dbo.test WHERE Parent_ID = @EmpID)

IF @ManagerID IS NOT NULL and @ManagerID > '' and @ManagerID <> @EmpID
INSERT INTO @Employee
SELECT [id],parent_id FROM eii.dbo.test Where [id] = @ManagerID
UNION
SELECT * FROM GetEmployee(@ManagerID)

RETURN
END

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Recursive Join

Jan 27, 2006

Hey all,
I am writing a procedure to perform a search against products in a website. It is a hierarchical setup, with websites, catalogs, category hierarchies, categories and products. So I need to get all the products that match the search, that are in categories that are in category hierarchies (category-to-category relationship), that are in catalogs that are in 1 website.

I can get the category that a matching product is in, but from there I need to recursive go up the ladder of category hierarchies until it reaches a point where the parent hierarchy is null, and then join that record with the catalogs that are in the 1 website. Here's what I thought might work:

Code:

SELECT ctlgs_CatalogCategoriesToProducts.*
FROM COMMERCE_PRODUCTS
INNER JOIN ctlgs_CatalogCategoriesToProducts ON COMMERCE_PRODUCTS.ITEMNO = ctlgs_CatalogCategoriesToProducts.ItemNo
INNER JOIN ctlgs_CatalogCategoryHierarchies ctlgs_CCH ON ctlgs_CatalogCategoriesToProducts.CategoryID = ctlgs_CatalogCategoryHierarchies.CategoryID

*** some recursive stuff***
WHILE (ctlgs_CatalogCategoryHierarchies.ParentHierarchyID IS NOT NULL)
BEGIN
INNER JOIN ctlgs_CCH ON ctlgs_CatalogCategoryHierarchies.ID = ctlgs_CCH.ParentHierarchyID
END

******

INNER JOIN ctlgs_Catalogs ON ctlgs_CatalogCategoryHierarchies.ID = ctlgs_Catalogs.RootHierarchyID
INNER JOIN ctlgs_CatalogsToWebsite ON ctlgs_Catalogs.ID = ctlgs_CatalogsToWebsite.CatalogID
INNER JOIN ctlgs_Websites ON ctlgs_CatalogsToWebsite.SiteID = ctlgs_Websites.ID
WHERE
ctlgs_Websites.ID = @website
AND COMMERCE_PRODUCTS.BLOCKED = 0
AND (
COMMERCE_PRODUCTS.ITEMNO LIKE @searchTerm
OR COMMERCE_PRODUCTS.DESCRIPTION LIKE @searchTerm
OR COMMERCE_PRODUCTS.DESCRIPTION2 LIKE @searchTerm
)

I've never used WHILE before, so I'm not sure what exactly you can put in there. Any advice would be greatly appreciated, thanks!

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Recursive Queries

Jul 13, 2004

I have a following structure

table A
userid ReferedBy
BA
C B

Table B
Userid compID
AAlpha
Bself
Cself

now the scenario is :
the user A is from the company "Alpha"
he introduces user B, who registers in the system his company bcomes "self",
now B inturn refers user C who also registers in the system and his company is now again "self".
Now I need to generate a report of number of users that have registered under one company, for eg.
for the company "Alpha" no of users becomes 2 since A refered to two users and both of them have registered.

I m stuck with the query.
thanks in advance...
regards,
Harshal

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Recursive Cursor

Sep 23, 2004

Hi,

I have 2 tables

tblparent

parent_term_id term_id
-------------- -----------
1 2
2 3

tblname

id name
----- ------------------------------------------
1 My top parent node
2 My second node
3 my child node

If I do a search for say 'my child node' I need to display where 'my child node' is in relation to the hierarchy. i.e i need to show it's parent and if that has a parent I need to show its parent etc... and continue until there are no more parents left

So using the table details if i search for 'my child node'

I need to display this :
My top parent node -> My second node - > my child node

The id for 'My top parent node' doesn't exist in tblparent because it is the top parent

Can anybody help with doing this

Thanks in advance

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Recursive Sql Query

Sep 29, 2004

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Can A Recursive Query Do This?

Dec 23, 2004

I am wondering if there is some type of recursive query to return the values I want from the following database.

Here is the setup:

The client builds reptile cages.

Each cage consists of aluminum framing, connectors to connect the aluminum frame, and panels to enclose the cages. In the example below, we are not leaving panels out to simplify things. We are also not concerned with the dimensions of the cage.

The PRODUCT table contains all parts in inventory. A finished cage is also considered a PRODUCT. The PRODUCT table is recursively joined to itself through the ASSEMBLY table.

PRODUCTS that consist of a number of PRODUCTS are called an ASSEMBLY. The ASSEMBLY table tracks what PRODUCTS are required for the ASSEMBLY.

Sample database can be downloaded from http://www.handlerassociates.com/cage_configurator.mdb

Here is a quick schema:

Table: PRODUCT
--------------------------
PRODUCTIDPK
PRODUCTNAMEnVarChar(30)

Table: ASSEMBLY
--------------------------
PRODUCTIDPK(FK to PRODUCT.PRODUCTID)
COMPONENTIDPK(FK to PRODUCT.PRODUCTID)
QTYINT

I can write a query that takes the PRODUCTID, and returns all

PRODUCT
=======
PRODUCTIDPRODUCTNAME
--------------------
1Cage Assembly - Solid Sides
2Cage Assembly - Split Back
3Cage Assembly - Split Sides
4Cage Assembly - Split Top/Bottom
5Cage Assembly - Split Back and Sides
6Cage Assembly - Split Back and Top/Bottom
7Cage Assembly - Split Back and Sides and Top/Bottom
833S - Aluminum Divider
933C - Aluminum Frame
10T3C - Door Frame
11Connector Kit
12Connector Socket
13Connector Screws

ASSEMBLY
=========
PRODUCTIDCOMPONENTQTY
---------------------
198
1104
1111
211
281
311
381
411
481
511
582
611
682
711
783
11128
11138

I need a query that will give me all parts for each PRODUCT.

Example: I want all parts for the PRODUCT "Cage Assembly - Split Back"

The results would be:

PRODUCTIDPRODUCTNAME
--------------------
2Cage Assembly - Split Back
1Cage Assemble - Solid Back
933C - Aluminum Frame
10T3C - Door Frame
11Connector Kit
833S - Aluminum Divider
12Connector Socket
13Connector Screws

Is it possible to write such a query or stored procedure?

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Recursive Triggers

Jan 7, 2004

use pubs
sp_configure 'nested triggers',1
go
reconfigure
go
alter database pubs
set RECURSIVE_TRIGGERS ON
go
create table abcd (recid int)
go
create trigger abcd_trigger
on abcd
instead of insert
as
begin
declare @recid int
select @recid = recid + 1 from inserted
insert into abcd values (@recid)
end
go
insert into abcd values (1)
go
select * from abcd
go
drop trigger abcd_trigger
drop table abcd
go

Why does this insert value as 2 even though I have enabled recursive triggers.... Gurus .. any answers????

And as for changing the database options ... please check what they are before executing this post so that you can reset them later.

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Recursive Cursors

May 16, 2006

Hi,
Is there any recursive cursors in sqlserver?If any then what are recursive cursors?
Thanks in advance

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