Can Somebody please show me how to acheive this, using the order details in Northwind
database or any other good example. as much details as possible. Many Thanks!
Why do we need a junction table in a many to many relationship? Why can't everything be in just 2 tables?
View 9 Replies View RelatedHello,
This seems like such a simple problem but I am new developer even through I have been on the administration end of things for some time. I will go into more detail about my tables and there relationships below. Anyway, I am trying to create a many-to-many relationship within ms sql server 2005. I have created both of my primary tables and also a junction table per the directions on microsoft's website all per ms's instructions as stated here...
http://msdn2.microsoft.com/en-us/library/ms178043.aspx
At then end of these instruction it states as a NOTE: The creation of a junction table in a database diagram does not insert data from the related tables into the junction table. For information about inserting data into a table, see How to: Create Insert Results Queries (Visual Database Tools).
http://msdn2.microsoft.com/en-us/library/ms189098.aspx
and these directions do not go into detail on how to do an insert on a junction table. And I cant find out how to do this anywhere on the internet... I did create a T-SQL INSERT statement in a trigger as listed below but I end up getting an error AS LISTED BELOW....
Here is how I set everything up...
PetitionSet table consists of:
PetitionSetID int auto-increment primary key
PetitionSetName varchar(50) no nulls
PetitionSetScope varchar(50) no nulls
the Petition table consists of:
PetitionID int auto-increment primary key
PetitionSetID int no nulls
PetitionName varchar(50) no nulls
the SetToPetitionJunction table consists of:
PetitionSetID int
PetitionID int
And, there is a composite key made up of both the PetitionSetID and PetitionID fields.
I have created the foreign key relationships with DEFAULT VALUES from the SetToPetitionJunction table to each column's respective corresponding column in each of the tables: PetitionSet and Petition.
The trigger is on the Petition table and it has the following code:
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
-- =============================================
-- Author: Name
-- Create date:
-- Description:
-- =============================================
ALTER TRIGGER .[SetToPetitionJunctionTrigger]
ON .[dbo].[Petition]
AFTER INSERT
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
INSERT INTO SetToPetitionJunction
(PetitionID, PetitionSetID)
SELECT Petition.PetitionID, PetitionSet.PetitionSetID
FROM Petition INNER JOIN
PetitionSet ON Petition.PetitionSetID = PetitionSet.PetitionSetID
END
I have created an asp.net 2.0 front end to insert values into the PetitionSet table and the Petition Table. And in the detailsview for the Petition table I manually insert the PetitionSetID field to the number that corresponds to an auto-generated number on the primary key of the PetitionSet table. So I am maintaining referential integrity...
The first time it works and inserts one record in the Junction table containing the PetitionSetID from the PetitionSet table and the PetitionID from the petition table.
Then when I try to add in another petition for the same petition set number just like I did the first time and then I get this error...
Violation of PRIMARY KEY constraint 'PK_SetToPetitionJunction'. Cannot insert duplicate key in object 'dbo.SetToPetitionJunction'.
The statement has been terminated.
David
All Rights Reserved in All Media
I have an unusual problem. I am using VB.Net 2003 and sqlexpress using .NET dataset to insert records into an timecards table. After inserting several records I tried a 'Select * from timecards' and the inserted records where not selected. if I 'select * from timecards order by employee' ( or any other field) the inserted records are selected! The table was created by an Access Upsize command.
I used Express Manager ( XM ) to try the select statements. That is how I isolated the problem. Even using a "Select * from timecards where employee = 'test' " returns the inserted test records. I found that if I use a WHERE or ORDER BY clause in the SELECT statement to .fill the .net dataset, all records are returned.
I am familiar with DB2 but I am a newbie at VB.NET and MSSQL
Any suggestions?
Thanks!
GordonG
I have two tables that share a common identity row. I need to build a query where data that exists in one table does not contain data in the other table. For example, table 1 has columns of Owner_ID, LastName, FirstName and table 2 has columns Auto_ID, Owner_ID, AutoMake. Both tables are joined by the Owner_ID column. I need a query that provides all owners from table 1 who do not have an entry in table 2.
Thanks in advance,
Mark
Hello specialists.
Maybe this is the wrong formum but I've got a question for which you probably have the answer, i hope.
Situation
------------
John is member of Group_A and Group_B
Bill is member of Group_B and Group_C
Allison is member of Group_A and Group_E
How can I create a query to input Allisons username into table 1 and groupmembership into table 2. Also updating the relationship within junction-table3 must be done automaticaly. I want to avoid duplicate records.
The final situation I want is given in red text.
The relationships between the tables are as follows
-------------------------------------------------------------
Table1 (PK)ID-Userinfo [ONE] <------------> [MANY] Table3 ID-Userinfo
Table3 (PK)ID-GroupInfo [MANY] <------------> [ONE] Table2 (PK)ID-GroupInfo
Table1: UserInfo
------------------------------
(PK)ID-Userinfo UserName
1 John
2 Bill
3 Allison
Table2: GroupInfo
------------------------------
(PK)ID-GroupInfo GroupName
1 Group_A
2 Group_B
3 Group_C
4 Group_E
Table3: MemberOf
------------------------------
(PK)ID-MemberOf ID-UserInfo ID-GroupInfo
1 1 1
2 1 2
3 2 2
4 2 3
5 3 1
6 3 4
I hope you can help me cracking this nut.
Thx in advance. Greetings Fred
For example:
Select * From Customers Where CustomerName = "Tom" and CustomerLocation = @Location
I know MS Access you can use a "*" to retrieve all records when there is a parameter. What does SQL Sever query use to retrieve all record?
I have table that I need to retrieve the top 2 records, the issue is I have 3 records with the same date, but I only want the first 2. Each record looks something like this.
id, team, date, setnr, series
1, 3, 1/1/2013, 1, 1102
1, 3, 1/1/2013, 2, 1231
1, 3, 1/1/2013, 3, 1023
1, 3, 1/5/2013, 4, 1024
1, 3, 1/5/2013, 5, 1123
1, 3, 1/5/2013, 6, 1232
2, 2, 1/1/2013, 1, 1032
2, 2, 1/1/2013, 2, 1221
2, 2, 1/1/2013, 3, 1023
2, 2, 1/5/2013, 4, 1231
2, 2, 1/5/2013, 5, 1112
2, 2, 1/5/2013, 6, 1231
I have to be able to add the series up of only the first two records for each id based on date. Here is a sample query
select sum(series), date from table group by date order by sum(series) desc
This gives me the total for all three and gives it to me in descending order. I need the records for set 1 and 2 of each of the Id. There are many records but the date and the setnr doesn't duplicate.
I have two tables:
1. tblProducts
columns: ProductID, ProductName
2. tblProductCodes
columns: ProductID, CustomerID, ProductCode
The 2nd table is for storing product codes for customers, in other words, one product can have different ProductCode for different customers. But some customers do not have ProductCode for a ProductID.
I want to create a query to return all the Products and its ProductCode (null is valid) for a specific customer.
I tried:
SELECT dbo.tblProductCodes.ProductCode, dbo.tblProductCodes.CustomerID,
dbo.tblProducts.ProductName,
dbo.tblProducts.ProductID
FROM dbo.tblProducts LEFT OUTER JOIN
dbo.tblProductCodes ON dbo.tblProducts.ProductID = dbo.tblProductCodes.ProductID
WHERE dbo.tblProductCodes.CustomerID = 2
But the query left out all products that does not have ProductCode value in tblProductCodes table for CustomerID = 2. I want all the ProductName returned from query and render null or empty string for ProductCode value if the code does not exist in tblProductCodes table for the customer.
Any help is highly appreciated.
I am TRYING to write code to combine two tables and then return the maximum value of one table, but SQL Server keeps telling me that the column is not valid.... I have added attached screenshots to show that it IS a valid column, so I cannot figure out what is the retarded issue!!
View 11 Replies View RelatedMy example data as this:
ID code1 code2
1 a m
1 b n
1 c T
2 d m
2 e n
2 f n
3 g m
3 h n
3 i T
I would like to have a select stmt that check for all same ID and code2 does not contain T, then return the records
For example data: the query should return
2 d m
2 e n
2 f n
Is it possible to do this?
Not sure if this is possible, but maybe. I have a table that contains a bunch of logs.
I'm doing something like SELECT * FROM LOGS. The primary key in this table is LogID.
I have another table that contains error messages. Each LogID could have multiple error messages associated with it. To get the error messages.
When I perform my first select query listed above, I would like one of the columns to be populated with ALL the error messages for that particular LogID (SELECT * FROM ERRORS WHERE LogID = MyLogID).
Any thoughts as to how I could accomplish such a daring feat?
I need to write a query to group records based on speed (specific value of zero). Consider the following scenario:
Table - Vehicle_Event
Vehicle_Id____Date_Time______________Speed
C1____________2012-06-28_10:10:00____5
C1____________2012-06-28_10:11:00____0
C1____________2012-06-28_10:12:00____0
C1____________2012-06-28_10:13:00____4
C1____________2012-06-28_10:14:00____3
[code].....
OUTPUT_Required:
Vehicle_Id____Date_Time___________________________ __________Speed
C1____________2012-06-28_10:10:00___________________________5
C1____________2012-06-28_10:11:00_to_2012-06-28_10:12:00____0
C1____________2012-06-28_10:13:00___________________________4
C1____________2012-06-28_10:14:00___________________________3
C1____________2012-06-28_10:15:00_to_2012-06-28_10:18:00____0
[Code] .....
I need the start and end time of consecutive records of the same vehicle with 0 speed ordered by date_time. If there is more than one consecutive record with zero speed it needs to be grouped together.
Hi
I am looking to write a query that returns all records Inserted in the last hour.
The problem, as I see it, is that the column I need to refer to is a VARCHAR() datatype. Can I convert from varchar (example 14:04:31)to a time value and calculate from this ?
I would like to subtract 1 hour from current_timestamp or similar, so that the query dynamically changed.
Many thanks
The topic pretty much sums up my question.
What would the sql query be to return only all the records in a table that are 45 days old from today.
Thank you for any help in this matter
Al
Hi,
I'm trying to retrieve some records from an SQL database.
I've a table named CustomerOrder with three fields - custID , productname and quantity
No keys in the table. it's row based approach. every custID can have multiple entries for different products.
Example:
CustID ProductName Quantity
1 Product1 2
1 Product2 3
2 XXX 1
2 Product1 2
1 Product3 4
I would like to write a query that gives the result as follows :
CustID ProductName Quantity
1 Product3 4
2 Product1 2
Meaning that, query has to retrieve only one record per custID based on highest quantity.
select custId,Productname,quantity from customerorder where quantity = (select max(quantity) from customerorder)
the above query returns only one record. (ofcourse..)
Kindly help me to get the desired.
Thank You.
I have a requirement like below .
Input table will be like below:
eventdata:
accountID deviceID timestamp speedKPH address
--------- -------- ---------- -------- -------------
preva1 bolero 1359089006 15 Ullalu Road
preva1 bolero 1359088796 0 Ullalu Road
preva1 bolero 1359088886 0 Ullalu Road
preva1 bolero 1359088888 8.47 Ullalu Road
preva1 bolero 1359088986 0 Ullalu Road
preva1 bolero 1359088988 45 Ullalu Road
preva1 bolero 1359088996 21 Ullalu Road
preva1 bolero 1359088998 0 Ullalu Road
preva1 bolero 1359089006 15 Ullalu Road
preva1 bolero 1359089009 12 Ullalu Road
preva1 bolero 1359089006 15 Ullalu Road
preva1 bolero 1359089016 0 Ullalu Road
preva1 bolero 1359089026 0 Ullalu Road
So here i need output table like below:
stoppagedetails:
accountID deviceID from_timestamp to_timestamp diff
--------- -------- ---------- -------- -------------
preva1 bolero 1359088796 1359088888 92
preva1 bolero 1359088986 1359088988 2
preva1 bolero 1359088998 1359089006 8
preva1 bolero 1359089016
How to write mysql query for the above requirement.
What I would like to do is to have a TSQL Select return the number of records in the Result as if TOP (n) had not been used. Example:I have a table called Orders containing more than 1.000 records with OrderDate = '2015/07/21' and my client application has a threshold for returning records at 100Â Â and therefore the TSQL would look like
SELECT TOP (100) *Â FROM Orders Where OrderDate = '2015/07/21'Â ORDER by OrderTime Desc
Now I would like to "tell" the client that only 100Â of 1.000 records are shown in the client application grid. Is there a way to return a value indicating that if TOP (100) had not been used the resultset would have been 1.000. I know I could create the same TSQL using COUNT() (SELECTÂ COUNT(*)Â FROM Orders Where OrderDate = '2015/07/21'Â ORDER by OrderTime Desc) and return that in a variable in the SELECT statement or even creating the COUNT() as a subquery and return it as a column, but I would like to avoid running multiple TSQL's. Since SQL Server already needs to select the entire recordset and sort it (ORDER BY) and return only the first 100 the total number of records in the initial snapshot must somehow be available.
Hi,
I need to implement some thing like this.
I have a query like
SELECT table1.col1
,€™n/a€™ _response
FROM table1
INNER JOIN table2
This is the query that get the report data for my report. Now I need to replace the second column with an actual response like €˜accepted€™ and €˜rejected€™. And these values should be a result of evaluation of this form
Statusarray[] = ResponseStoredProcedure(table1.col1)
If(Statusarray.count < 1)
Set _response = €˜accepted€™
Else
Get Statusarray[1]
Compare this to Statusarray[0]
Set _response = some result based on comparision.
The _response returned in the query should return the actual response based on this evaluation where ResponseStoredProcedure is sent the current row value for table1.col1.
How can this be done in sql(using SQL Server 2005)
PLZZZ HELP!!!!!!!!!
Thanks,
Hari
I have an incident reporting management application. People are supposed to report incidents by this application and every time some one reports an incident, they also select thier employee#(reqiured field). so how can write an sql statement that returns only the Top 5 incident reporters i.e going by employee number. Iam thinking of applying a COUNT function on the incident_id and grouping by Employee# but then how do i make sure that only the top 5 incident reporters are returned.
View 1 Replies View RelatedI have two tables. A table called users (content speaks by it self) and a table called groups.
Since i want every user to be able to be a member of several groups and, of course, a group to have several users i have made a junction table called jt.
The junction table contains userId's and groupId's according to the user-group bindings. The primary key(identity) in the junction table is a int named jtId.
Now i want to take out all posts from the junctiontable and the corrresponding userName (s) from the users-table and the corresponding groupName from the groups-table.
Can somebody please help me to make a SQL command that will di that for me. I have tried with INNER JOIN and several SELECTS in the same command.
Thanks in advance, Greetings from Esben
I am trying to update 2 tables at the same time by adding new records to them and then making sure that they are related on my junction table?
Table1
packageID
Packagename
Table2 (JunctionTable)
PackageID
JobID
Table3
JobID
JobName
And I want to create a new package and new Job Name at the same time I would need to make multiple insert statements
First take care of the new Package
INSERT INTO Table1 (PackageName) Value (@PackageName)
Then Take Care of the JobName
INSERT INTO Table3 (JobName) Value (@JobName)
Finally marry the two together
but how?
i want to select the values of column passed from the user like
connectionsizein or connectionsizemm
how can i do
i am using sql server 2005
Problem is that if the [Receiving] table doesn't have a match then no records are return. I want all matches from the [Orders Subtable] and any matches from the [Receiving] Table. If no [Receiving] table matches then I still want all matches from the [Orders Subtable]. Attached is the query.
Note: The query has to run in Access 2000 and I will be coding it in VB.
SELECT Orders.[Orders ID],
[Orders Subtable].ID,
[Orders Subtable].Quantity,
Receiving.Quantity,
Receiving.[Component #]
FROM (Orders
LEFT JOIN Receiving ON Orders.[Orders ID] = Receiving.[Orders ID])
INNER JOIN [Orders Subtable] ON Orders.[Orders ID] = [Orders Subtable].[Orders ID]
GROUP BY Orders.[Orders ID], [Orders Subtable].ID,
[Orders Subtable].Quantity, Receiving.Quantity,
Orders.[Project #], [Orders Subtable].On_Order,
[Orders Subtable].[Component #],
Receiving.[Component #]
HAVING (((Orders.[Project #])="Speed1aaaaa") AND
(([Orders Subtable].On_Order)=True) AND
(([Orders Subtable].[Component #])="R02101A") AND
((Receiving.[Component #])="R02101A"));
Hello, everyone:
I have two tables with some duplicated records like,
ZZZTest:
C_IDC1C2C3
10AAA
20BBB
30AAA
40BBB
ZZZTestTable:
D_IDC11C22C33
1AAA
2AAA
3BBB
4BBB
5AAA
6AAA
7BBB
I wand to get the unique records by SELECT / JOIN statement. Now I used a query,
SELECT * FROM ZZZTest t
INNER JOIN ZZZTestTable tt
ON t.Col1=tt.Col11 AND t.Col2=tt.Col22 AND t.Col3 = tt.Col33
and got the records like,
C_IDC1C2C3D_IDC11C22C33
10AAA1AAA
30AAA1AAA
10AAA2AAA
30AAA2AAA
20BBB3BBB
40BBB3BBB
20BBB4BBB
40BBB4BBB
10AAA5AAA
30AAA5AAA
10AAA6AAA
30AAA6AAA
20BBB7BBB
40BBB7BBB
What I am expecting is,
C_IDC1C2C3D_IDC11C22C33
10AAA1AAA
30AAA2AAA
20BBB3BBB
40BBB4BBB
Any suggestion will be great appreciated.
Thanks
ZYT
I have looked everywhere but cannot find the solutions. I have two tables.
Table1 = tblvacation (10 records)
fields vacation_id, land, destination
Table2 = tblimages (1000 records)
fields image_id, vacation_id, folder, name
Both are related through vacation_id. Every vacation however has many pictures. I need a query where the result would give me back all records (vacations) from Table 1 with only 1 record from Table 2(one image per vacation).
Looking for some help here, so thanks for any input. I'm a painfully new newbie to SQL scripting.Situation:
I have a simple database to handle an organization's events. Those
events are categorized and may have more than one category assigned to
each event. I need a maintenance Web Form to update their events.Set
Up (so far): I have a CATEGORIES table. It has an auto incrementing UID
and a Category name field. This table will be updated so infrequently,
I plan to update it manually (no need for a maintenance Web Form). Next
is the EVENTS table. It also has an auto incrementing UID along with
several fields (Title, Location, DateTime, etc.). The junction table is
named jEVENTSCATEGORIES. It has its own auto incrementing UID along
with 2 fields named for the primary keys (UIDs) in the other 2 tables
(EventsID and CategoryID).Goal: On the Web Form, I have a
CheckBoxList control that's populated by the CATEGORIES table. One or
more categories can be checked for each event. I have a FormView
control that allows Edits and Inserts.Need: I need to know the
INSERT statement(s) required to insert a new record in the EVENTS table
and then to update one or more rows in the junction table
(jEVENTSCATEGORIES).My Assumptions: I know how to create
SELECTs and INSERTs and whatnot, but I'm not certain how to create a
second INSERT statement that is based on a variable (or output) from a
previous action. So any help would be MUCH appreciated. Thanks for your
time!
Hi i have a junction table(UserGroups) which is linking my users table with my groups table, however when the information is coming back in the format below, instead i want the group names to appear in only one field, instead of repeating the same data, could someone please tell me what i need to change
UserName: Edwin CarolsUserAge: 28JobTitle: ManagerGroupName: MUFC
UserName: Edwin CarolsUserAge: 28JobTitle: ManagerGroupName: AFC
Below is my SQL statement;
SELECT Users.UserName,Users.UserAge, Users.JobTitle, Groups.GroupName FROM Users INNER JOIN UserGroups ON Users.UserID = UserGroups.UserID INNER JOIN Groups ON UserGroups.GroupID = Groups.GroupID WHERE (Users.UserID = '5')
As an example, I am building an authentication mechanisim that will usedata in the 3 left tables to determine rights to objects in adestination table, diagrammed below. In this structure, multiplerecords in the left tables will point to multiple records in the righttable. Normally, I would approach this problem using junction tables(LeftID, RightID) to create many-to-many joins.However, given the structure of each table is nearly identical (as faras the linking IDs are concerned), I could also use a single junctiontable with columns for each available table ID (LeftID1, LeftID2,LeftID3, RightID). In this table, only two IDs would be utilized perrow (LeftIDx -> RightID).In both designs, the needed rights information is returned from fairlysimple views, thus the end result is equivalent. The advantage to thesecond, multi-ID junction table design, is a simpler databasestructure. However, never using this approach before, I am unsure ofthe potential future performance impacts.Any significant downsides to this second design? Examples of anabbreviated structure follow:Data Tables-----------LeftTable1LeftID1 (int)Data1LeftTable2LeftID2 (int)Data2LeftTable3LeftID3 (int)Data3DestinationTableRightID (int)DataLinking tables option 1-----------------------JunctionTable1LeftID1RightIDJunctionTable2LeftID3RightIDJunctionTable3LeftID3RightIDLinking table option 2----------------------JunctionID1 (int)ID2 (int)ID3 (int)DestinationID (int)
View 1 Replies View RelatedI have received some data out of a relational database that is incomplete and I need to find where the holes are. Essentially, I have three tables. One table has a primary key of PID. The other two tables have PID as a foreign key. Each table should have at least one instance of every available PID.
I need to find out which ones are in the second and third table that do not show up in the first one,
which ones are in the first and third but not in the second,
and which ones are in the first and second but not in the third.
I've come up with quite a few ways of working it but they all involve multiple union statements (or dumping to temp tables) that are joining back to the original tables and then unioning and sorting the results. It just seems like there should be a clean elegant way to do this.
Here is an example:
create table TBL1(PID int, info1 varchar(10) )
Create table TBL2(TID int,PID int)
Create table TBL3(XID int,PID int)
insert into TBL1
select '1','Someone' union all
select '2','Will ' union all
select '4','Have' union all
select '7','An' union all
select '8','Answer' union all
select '9','ForMe'
insert into TBL2
select '1','1' union all
select '2','1' union all
select '3','8' union all
select '4','2' union all
select '5','3' union all
select '6','3' union all
select '7','5' union all
select '8','9'
insert into TBL3
select '1','10' union all
select '2','10' union all
select '3','8' union all
select '4','6' union all
select '5','7' union all
select '6','3' union all
select '7','5' union all
select '8','9'
I need to find the PID and the table it is missing from. So the results should look like:
PID
MISSING FROM
1
TBL3
2
TBL3
3
TBL1
4
TBL2
4
TBL3
5
TBL1
6
TBL1
6
TBL2
7
TBL2
10
TBL1
10
TBL2
Thanks all.
I want to write a function, which accept 3 parameters, 1 TableName 2 ColumnName 3 DateValue, and returns number of records in that table for that particular date(in parameter date), I have written below function but it is not returning the desired result.
CREATE FUNCTION dbo.[f_Rec_cnt]
(@InTableName NVARCHAR(100),
@InDtColName NVARCHAR(50),
@InDate NVARCHAR(50)
)
RETURNS INT
[Code] .....
Hi i have a junction table(UserGroups) which is linking my "users" table with my "groups" table, however when the information is coming back in the format below, instead i want the group names to appear in only one field, instead of repeating the same data, could someone please tell me what i need to change.
UserName: Edwin CarolsUserAge: 28JobTitle: ManagerGroupName: MUFC
UserName: Edwin CarolsUserAge: 28JobTitle: ManagerGroupName: AFC
Below is my SQL statement;
SELECT Users.UserName,Users.UserAge, Users.JobTitle, Groups.GroupName FROM Users INNER JOIN UserGroups ON Users.UserID = UserGroups.UserID INNER JOIN Groups ON UserGroups.GroupID = Groups.GroupID WHERE (Users.UserID = '5')
Hi i have a junction table(UserGroups) which is linking my "users" table with my "groups" table, however when the information is coming back in the format below, instead i want the group names to appear in only one field, instead of repeating the same data, could someone please tell me what i need to change.
UserName: Edwin Carols
UserAge: 28
JobTitle: Manager
GroupName: MUFC
UserName: Edwin Carols
UserAge: 28
JobTitle: Manager
GroupName: AFC
Below is my SQL statement;
Code:
SELECT Users.UserName,Users.UserAge, Users.JobTitle, Groups.GroupName FROM Users INNER JOIN UserGroups ON Users.UserID = UserGroups.UserID INNER JOIN Groups ON UserGroups.GroupID = Groups.GroupID WHERE (Users.UserID = '5')
And my table structure is like;
Users; UserID, UserName, UserAge
Groups; GroupID, GroupName
UserGroups; UserGroupID, UserID, GroupID