Indexes On Related Tables...
Jun 17, 2007
Hi,
I have 2 tables with this design: one has ArticleID as primary key and multiple other fields and one has GroupID as primary key and multiple other fields. Each article can belong in multiple groups so I created a new table called articleGroups with only 2 fields: ArticleID and GroupID to show the groups associated with each article. There is a relation between this table and each of the main 2 tables. My question is, in the articleGroup table, does it make any sense to create an Index on ArticleID, GroupID or both? Since the group is needed for each article the Groups will always be queried everytime the article is queried. So, I am not sure if an index is needed?
Thank you,
Regards,
Iulian
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Jul 23, 2005
Is it possible to retrieve all tables that a given one is related tovia foreign keys?
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Mar 24, 2004
Hi all,
I am trying to insert user's input from a web form into the tables. For example,
PURCHASE TABLE(PurchaseID, PurchaseNo, Date, PartID)
PART TABLE(PartID, PartDescription,MachineID)
MACHINE TABLE(MachineID, MachineName)
On the web form I have textboxes for the Purchase No., date and part description, and a drop down list for the machine name. How do I insert them into the different tables?
I've just start learning ASP.NET and I am using Web Matrix for this. The examples I've seen so far only shows how to insert into a single table.
Thanks!
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Sep 12, 2005
I have 2 related tables I want to include in a single full text search. How would I go about setting this up?
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May 25, 2006
hi this is probably a dumb question with an easy answer but does anyone know how to do this...
2 tables, one is a supplier list (id, supplier_name) and the other is an order list (id, order_name, supplier_id... etc)
basically i need to join the 2 tables together (id=supplier_id) but i need to display the results without the supplier_id and the supplier table id, only the supplier name?
do i have select only the specific fields I want? or can I exclude the supplier_id and the id from the supplier table?
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Mar 6, 2007
Hi all. how could i join unrelated tables?
for example:
table1: employee
dcno name address telno
1 sarah philippines 111
2 john india 222
3 joy usa 333
table2: hospital
hospname location owner
hosp1 loc1 billgates
hosp2 loc2 ann
hosp3 loc3 love
hosp4 loc4 vic
table3: student
studname load
kim 10
Is it possible to join unrelated tables?
Thanks
-Ron-
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Oct 11, 2007
Hello, everyone!
Please give your ideas about how to create a query from two tables, which have many-to-many relationship. For example, we have table Book and table Author and consider, that one author had wroten several books and one book had being wroten by several authors. So we have many-to-many relationship of these two tables.
Usually this sutuation resolves by maens of creating the third table AuthorBook, which consist of key fields from the Author table and key fields from the Book table. So that the Author table is the parent table to AuthorBook, and the Book table is the parent table to AuthorBook. So we have two relations one-to-many. Now the question is how to get all related values from both tables, using JOIN operation and the conjunctive table?
I would greatly appreciate any answers
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Nov 14, 2007
I have a relationship database that contains two related tables. Table1 has the fields Customer_Name, Customer_ID, and products_Purchased. Table2 has the fields Customer_Name and Cutomer_ID. I would like to add a new row to Table1for a new purchase by a cutomer. When I try to add a new value in Table1 I get an error message saying I can't add a value to table1 because it requires a corresponding value in Table2. I am using the following code: '**********************************************
("INSERT INTO [Table1]([products_Purchased], [Customer_ID]) VALUES('" & textBox..Text & "',"
& session("ID") & ")"
' *****************************************
How do I write an INSERT STATEMENT that adds vaules to both tables, so that the code works?
Any HELP would be appreciated.
charlie
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May 28, 2007
Hey,
I want retrieve data from 3 table my tables structure is this
tblUsers
U_ID - Name
3 John
tblGroups
G_ID - Name
5 Admins
6 Moderators
Now I want join some of the users to different groups for example John maby is a member of two groups (Admins and Moderators)
in order to do this I created a new table names tblGroupsUsers
tblGroupsUsers
ID - User_ID - Group_ID
1 3 5
1 3 6
its ok, but Now I don't know how to retrive my users list from database I don't know how to write a wuery for this
I have tried this :
strSQL = "SELECT tblUsers.name, tblUsers.U_ID, tblGroups.G_ID, tblGroupsUsers.Group_ID, tblGroupsUsers.User_ID FROM tblUsers INNER JOIN tblGroupsUsers ON tblGroupsUsers.User_ID = tblUsers.U_ID, tblGroups WHERE tblGroupsUsers.Group_ID = tblGroups.G_ID ORDER BY tblUsers.name ASC;"
Its working withut error but the problem is the results its like this
John
John
its will retrive the username twice , I think its reading based on tblGroupsUsers table because it has two rows ,
help please I need this how can I configure my query to get eache name once
Thanks
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Mar 2, 2008
i am using ms sql server 2005 express for the following:
T1 = {t1.c1(PK), t1.c2, t2.c1(FK)}
T2 = {t2.c1(PK), t2.c2}
where T1 and T2 are tables from the same database, and tn.cn are CoulmnN of TableN
T1 and T2 are linked by the relationship t2.c1
i need to know how to add records to T1 and T2 using ms sql.
record for T2 needs to be added first then retreive t2.c1 from T2 to add record to T1 with t1.c1, t1.c2 t2.c1
please help, thanks
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Jan 29, 2014
I have 1 Excel spreadsheet. It has about 50 fields. I need to import this into my Database.The problem is; there are 2 tables that I need to import this into. These 2 tables are related with [ID].So, I need to split the data from 1 spreadsheet between 2 SQL server table. and keep the records related.
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Jan 30, 2014
I am trying to delete the records in 2 related tables. The 'child' table has a field called [SETA],
I want to delete all the records in this table that contain the same info, as well all the fields in the parent table that is related to this table. They share the [ID] field as key. This is my code:
Code:
DELETE FROM Student a full outer JOIN Qualification b on a.[ID] =b.[ID] WHERE b.[SETA] = @SETA
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Nov 1, 2007
Hi,
If I have 2 tables:
TableA
aID
aCount
TableB
bID
bCount
And I need to create a 3rd table that will look like:
aID
bID
What should I call this table?
I've seen:
relAB
AXB
Any other naming conventions?
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Sep 24, 2007
Hi,
I have 3 tables:
Employees with the fields:idEmployee and employeeName
Roles with the fields:idRole and roleName.
An employee can have one or many roles.
I created the table EmployeeRoles with the fields: id,idEmployee,idRole.
idEmployee and idRole are foreign keys.
I want to insert a new employee into Employees table, but I have to insert idEmployee field into EmployeeRoles table.
How can I do this?
Thanks
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Sep 8, 2006
how can i find all the names of tables that a specific table is related to in tsql?
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Apr 30, 2008
Many HUGE Thanks to the person who knows how to do this.
Problem: My goal is to take a single data row (myDataRow) from some table (MyTable) and then retrieve every single associated record throughout the database that is related to that datarow. This requires me to first find out what tables are related to the starting table and then recursively pull all of the associated records until I get all of the records associated. Sounds simple right?
The following code only pulls back only those tables that have a child table
with an associated foreign key (i.e. a 1 -> many):
Select [Name] from sysobjects where xtype='U' and Id in(
select fkeyid from sysforeignkeys where rkeyid=
(Select Id from sysobjects where Name='<TableName>'))
order by name
But this query does not work backwards where I start with a child table
and want to know the parents (i.e. many->1 relationship)
Anybody have a clue how to retrieve these parent related tables when starting with a child table? I know it can be done because SQL Server Management lets you select a table (child OR parent) and retrieve the related table(s).
Thank you for any direction you can suggest!
Best Wishes to All
-Eric
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Jul 14, 2004
Hi I have a question how to load data to tables linked by Foreign Keys in MSDE/SQL server. Example:
If I have 2 tables linked (by Foreign Key):
One table:
ITEM idITEM NAMEITEM CATEGORY (FK)
1cheese 2
And another:
Category IDCATEGORY NAME
1 household
2 food
3 general
How do I enter the load of data
Do I have to enter it as
1cheese2
or is there some way of entering it as
1cheesefood
TDS wizard does not allow me to transfer to views/querries what I thought would be a normal way as I would enter data to view(relevant to Access's form) and it would update related tables . When I wrote sql to do it it said I can not update my view table as too many tables would be affected(I had lookup tables empty then though)
I am doing it by number using TDS wizard to transfer it directly to the main table but there must be a better way
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Feb 24, 2005
I have two sets of related tables: Quote - QuoteDetail and Order - OrderItem
I need to copy Quote - QuoteDetail records to Order - OrderItem tables
I have the stored procedure up to this point: Insert a Quote in the Order table and get the new Order @@Identity.
I need to insert the QuoteDetail records into the OrderItem table using the new OrderID
Thank you for your help.
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Jun 2, 2005
I have a problem there must be an answer to, but I cannot find it anywhere on Google.I have a SQL INSERT statement in an ASP.Net page that inserts into 3 tables in one transaction.The problem is that 2 of the 3 tables are children of the main table, and I need to get the Parent table's Primary Key [which of course has not been inserted yet] to insert into the Child tables.How do I do this?THanks.Doug
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Sep 16, 2005
I have a situation where I want to load some entities from one table lets say the table is customers and i would like to load all the customers with first name = dummy, not only this i would like to load all the orders and order details for these specific customers (these are two different separate tables) . I want all this within one stored procedure that return me three results for three different tables. Please tell me whether it is possible and how.
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Jul 14, 2014
Need to know some of the DMV'S and System Tables related to Database Mirroring.
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Jun 18, 2007
Hey guys up until now i've only inserted data into a single table. Now I have a form that collects information over a span of three forms. Each form has a table related to it and these three tables are related to each other.
What I want to know is:
1)How do you go abouts inserting data into multiple related tables that have constraints on them?
2)Would you use a stored procedure in an instance like this?
3)At what stage would you execute the sql queries. I assume you do this once you have collected all the required information as opposed to: Enter info into form1, submit form1 data to database... enter info into form2, submit form2 data into database etc
Any help would be greatly appreciated!
Say for instance I have three related tables.
table1
------
tbl1_id
tbl1_data1
tbl1_data2
table2
------
tbl2_id
tbl2_data1
tbl2_data2
table3
------
tbl3_id
tbl3_data1
tbl3_data2
table1 has a one-to-many relationship with table2
table3 has a one-to-one relationship with table2
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Oct 16, 2006
Hi Group,My apologies for the lengthy post, but here goes...I have the following tables:TABLE Vehicles([ID] nvarchar(5),[Make] nvarchar(20),[Model] nvarchar(20),)TABLE [Vehicle Status]([ID] int, /* this is an auto-incrementing field*/[Vehicle ID] nvarchar(5), /* foriegn key, references Vehicles.[ID] */[Status] nvarchar(20),[Status Date] datetime)Here's my problem...I have the following data in my [Vehicles] and [Vehicle Status] tables:[ID] [Make] [Model]----------------------H80 Nissan SkylineH86 Toyota Aristo[ID] [Vehicle ID] [Status] [Status Date]----------------------------------------1 H80 OK 2006-10-012 H80 Damage 2006-10-053 H86 OK 2006-10-134 H86 Dent 2006-10-155 H86 Scratched 2006-10-16I need a query that will join the two tables so that the most recentstatus of each vehicle can be determined. I've gotten as far as:SELECT Vehicle.[ID], Make, Model, [Status], [Status Date] FROM[Vehicles] INNER JOIN [Vehicle Status] ON [Vehicles].[ID] = [VehicleStatus].[Vehicle ID]Of course this produces the following results:[ID] [Make] [Model] [Status] [Status Date]--------------------------------------------H80 Nissan Skyline OK 2006-10-01H80 Nissan Skyline Damage 2006-10-05H86 Toyota Aristo OK 2006-10-13H86 Toyota Aristo Dent 2006-10-15H86 Toyota Aristo Scratched 2006-10-16How do I filter these results so that I get only the MOST RECENT vehiclestatus?i.e:[ID] [Make] [Model] [Status] [Status Date]--------------------------------------------H80 Nissan Skyline Damage 2006-10-05H86 Toyota Aristo Scratched 2006-10-16Thanks in advance,Rommel the iCeMAn*** Sent via Developersdex http://www.developersdex.com ***
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Jun 18, 2007
Experienced memebers,
I have what should be simple question about related tables in a dataset and using those fields in a report. Here is my simple design.
Order Header -> Line Item -> Line Discount -> Discount Table
Now when designing this report I cannot seem to access the related discount records for the line item. (as more than one can be applied) Every time I try to drag an field from one of the tables in the dataset to my report it automatically adds "First()" onto the field value expression. This seems to work fine for the order header, but doen't even come close to getting the right discount on the line item? I basically need to pass through the Line Discount table to get to the discount name field to put on the same line as my line item data on the report.
I have looked and googled for for an example on this, but have come up short. Can anyone point me in the right direction?
Thanks,
Chris
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Dec 5, 2007
Does anyone know how I can do this?
I have 2 tables in an ODBC datasource (INV HEADER) and (INV DETAILS). The relationship on these 2 tables is (INVNUM).
I want to import these tables into SQL 2005 on a nightly basis by date. The problem is the date field is on the (INV HEADER) table and not the (INV DETAILS) table.
Basically I want to import all the (INV DETAILS) rows that have the same (INVNUM) as the (INVHEADER) but don't know how to do this.
I could use a join on the source tables but how would I direct specific columns to 2 different destinations?
Any help on this would be great and appreciated.
Thanks
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Dec 4, 2007
Hi everyone!
I'm on my way to learn SSIS by myself and it's a little complicated!
I'd like to ask you one thing:
I have two tables at my data source, one is "Clients" and the other one is ClientsAddress. That is, a client can have more than one address. Both tables are related by a one to many relationship and the tables description is:
CLIENTS CLIENTSADDRESS
#PK_Client #PK_Client
other fields.. #ID_address
... other fields
What i intend to do is to obtain one table with approximately 3 fields, each one for a possible client address; something like this:
CLIENTS
PK_Client
ID_Address1
ID_Address2
ID_Address3
My question is what transformation can i use? an how ?
Thanks very much in advance!!
Emilio Leyes
Salta, Argentina
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Nov 11, 2005
hi there,
i am new to sql server database.i am doing small projects right
now using asp.net and sql to create webpages (very basic webpages)
My problem is:
Problem :
i have two tables .....table 1 and table 2.
Table 1 has following fields: studentid,student name,student address.
Table 2 has following fields:studentid and course .
table1 student id is the primary key refrencing table 2 student id.
Now i delete a record in table 1 which will in turn also get deleted in
table 2 . so for eg if i have three records 1 ,2 and 3 ....then i
delete 2 in table 1 ...i will have 1 and 3 in both table 1 and table
2....now i want 3 to become 2 in both table 1 and table 2...so that i
dont have empty space between two student id's 1 and 3. so this is my
problem....if any one can help me out with suggestions please
do.
thank you all........
ahmed_ind
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Jul 20, 2005
Terminology question:Is there a term for a set of records related directly or indirectly by keyvalue in several tables? For example, a single invoice record and its lineitem records -or- a single customer, the customer's orders, the order linesfor those orders, the customer's invoices, and the invoice lines for thoseinvoices.I'm thinking the term might be graph, but I'm not at all certain of this.Thanks,Steve J
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Jan 19, 2007
hi all,
Could we configure a merge replication such as replicate the master table and its all related tables (relation deep could be 1.)
We dont want to manually find master table relations and configure replication for the related tables.
please help for that configuration
kinds
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Oct 5, 2015
I have these 3 tables in a database for printed chamber music works:
Table INSTRUMENTS: List of musical instruments
Column ID -- int, primary key
Column sInstrument -- string
Table PTRS_INSTRUMENTATION:
Column ID -- int, primary key
Column lInstrument -- int, points to a row in table INSTRUMENTS via ID
Column lMainItem -- int, points to a row in table MAINITEMS via ID
Column lInstrSeqNum -- int, sequential number of like instruments within one Main Item
Table MAINITEMS: List of chamber music works
Column ID -- int, primary key
Column sItem -- string
Each chamber music work (Main Item) requires an ensemble of musicians playing several instruments. Some of them may be the same, such as 2 violins. A classical quartet, for instance, consist of 2 violins, 1 viola and 1 cello. I am concerned here only with one of the instruments (although it may occur several times).
I want to extract a list of Main Items where the instrument is given (e.g., 'violin'),
And the maximum of PTRS_INSTRUMENTATION.lInstrSeqNum is a given number (e.g., 2).
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May 28, 2007
I am really stuck here,
I hope to get some helpful answers on this forum.
Ok, I have three four tables in my db,
1- Stages
2- Activities
3- Tasks
4- Subtasks
Structure is like:
Stages
1- SrNo (Unique)
2- Stage
3- StartDate
4- FinishDate
Activities
1- SrNo (Unique)
2- Activity
3- StartDate
4- FinishDate
5- SrNo1 ((FK) from Stages Table)
Tasks
1- SrNo (Unique)
2- Task
3- StartDate
4- FinishDate
5- SrNo1 ((FK) from Activities Table)
Subtasks
1- SrNo (Unique)
2- Subtasks
3- StartDate
4- FinishDate
5- SrNo1 ((FK) from Task Table)
Now what i want is to update Tasks, StartDate and FinishDate according the Min(StartDate) and Max(FinishDate) of related Subtasks and same for Activities and Stages.
I have tried following query to Update tasks, StartDate and FinishDate
Update Tasks Set Tasks.StartDate=(Select Min(Subtasks.StartDate) from Subtasks,Tasks where Tasks.SrNo=Subtasks.SrNo1) from Subtasks,Tasks where Tasks.SrNo=Subtasks.SrNo1
But this query updates all Tasks with Min and Max date from Subtasks regardless of their relation.
Any help, would be appreciated.
Thanks
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Sep 25, 2002
I would like to update/insert data into a Orderhearder Table along with the related details into the corrosponding OrderDetails Tables. Can this be done using a single stored procedure or do we have to make one call to the UpdateOrderHeader Stored Procedure and loop thru all the details and call the UpdateOrderDetails Stored Procedure. How do we handle the Transactions in such a case ?
Thanks
Anurag Agarwal
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Jun 7, 2001
How do I move a table (test1) to a physical file group, and the table(test1) indexes to another file group. One clustered index and 3 nonclustered indexes. Thanks!!!!
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