How To Perform Table JOIN?
May 5, 2008
Hi all,
Lets say that i have 3 tables, they are already related together, information on each of the 3 tables and their relationship between eachother can be found below:
I am using Microsoft SQL Server 2005 Database in Visual Web Developer 2008 using VB programming (ADO.NET)
The 3 tables are as follows:
Floor
Room
Location
Fields inside each of the tables can be found below:
Floor Table
(PK) ID
(Required) Name
DisplayOrder
Room Table
(PK) ID
(Required) Name
(PK, FK) FloorID
ExchangeID
Extension
IP
DeviceName
Remarks
(Required) Equipment
(Required) Floor2ID
FloorLocationX
FloorLocationY
Location Table
(PK,FK) FloorID
(Required) CountryName
(Required) CityName
(Required) BuildingName
The Relationships between the 3 tables are as follows:
ID field in Floor table is referenced by the field named FloorID in the Room Table
ID field in Floor table is referenced by the field named FloorID in the Location table
NOTE: Location Table serves only as an extension to Floor table thus they have a 1 to 1 relationship, due to My Projects Lead's instructions I am not allowed to consolidate the Floor Table and the Location Table as 1 whole table.
Floor Table has a 1 to Many Relationship with the Room Table.
I Have already done the physical relationships between each of the 3 tables in the Database Diagram, in Visual Web Developer 2008 Express Edition under the Database Explorer
So i have created this form to accept user input:
this form is in a aspx page called AddRooms.aspx
Country Name:______________ (data sent to location table)
City Name:_________________ (data sent to location table)
Building Name:______________ (data sent to location table)
FloorID:[This is a DropDownList which is databinded to the Floor Table]
Room Name:_______________ (data sent to room table)
*Just imagine that the above is a form to accept user input
*With a hit of a submit button all data will be sent to their respective tables in the database
Now i know that i have to JOIN tables in my database in order for my application to work, but i have no experience performing JOIN, i need great guys like you to help me apply JOIN to the 3 tables mentioned above, do let me know if you have any doubts in what i am trying to do.
Do give me that code that i can either apply in the (VB environment Visual Web Developer 2008) and/or in Microsoft SQL Server 2005 environment
Just need the SQL Statment that i will need to construct to perform the JOIN i need to.
Please Help
Many Thanks : )
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1) Merge all the tables into one and then perform the search criteria:
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(SELECT a, b, c FROM Table1
UNION ALL
SELECT a, b, c FROM Table2
UNION ALL
SELECT a, b, c FROM Table3) AS MY_MERGE
WHERE {SEARCH CRITERIA}
2) Perform the search criteria on each table and merge the results
SELECT a, b, c FROM
(SELECT a, b, c FROM Table1 WHERE {SEARCH CRITERIA}
UNION ALL
SELECT a, b, c FROM Table2 WHERE {SEARCH CRITERIA}
UNION ALL
SELECT a, b, c FROM Table3 AS MY_MERGE WHERE {SEARCH CRITERIA})
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ProjectId
Stage
StateStatus
ProjectId
ProjectName
StartDate
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P1
P1Name
31/12/2015
[Code] ...
I want with PowerPivot to tell what stage is in progress for project. I looked at RElatedTable, LOOKUPVALUES, but I can't find a way to associate this to get working. I got however the one telling me which projects are Completed.
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P1Name S2
P2Name S3
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Here is my insert statement:
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(Production.Products AS P
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[code]....
However ,the result that i got was correct.But when i did the same query using the left outer join in both the cases
i.e..
SELECT
S.companyname AS supplier, S.country,P.productid, P.productname, P.unitprice,C.categoryname
FROM
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(Production.Products AS P
LEFT OUTER JOIN Production.Categories AS C
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ON
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WHERE
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supplier country productid productname unitprice categorynameSupplier QOVFD Japan 9 Product AOZBW 97.00 Meat/PoultrySupplier QOVFD Japan 10 Product YHXGE 31.00 SeafoodSupplier QOVFD Japan 74 Product BKAZJ 10.00 ProduceSupplier QWUSF Japan 13 Product POXFU 6.00 SeafoodSupplier QWUSF Japan 14 Product PWCJB 23.25 ProduceSupplier QWUSF Japan 15 Product KSZOI 15.50 CondimentsSupplier XYZ Japan NULL NULL NULL NULLSupplier XYZ Japan NULL NULL NULL NULL
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ALL 0010 001 101 0010 001
ALL 0010 002 101 0010 002
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I have one main Table "MainTable" which I want to relate with "subTable1, subTable2, ..." in such a way that:
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All,
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For example... say i have this query:
Code:
select
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table2.name
table2.lastname
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HTML Code:
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------- ----------- --------------
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HTML Code:
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how to join a table to itself to get all possible compinations
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consider
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The following code works fine.
But I need to add that we only want part# that have a reporting code that is, are not blank in this table "Audia" ItPRT# would join on the other prt# and then we want this col added to the output: IARCC9
and then we need to sort by that as well.
select ItQty#,IhDocd,ItPRT# from pklib.Fileout1 a
join astdta.icEct1 b on
b.CtCom#= a.ItCom# and
b.CtCtr# = ' ' and
b.CtPrt# =a.ItPrt#
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Hi there, anyone can help me to join Table_1 & Table_2 to get below output: Thanks.
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Table_2
id, lookup_type, lookup_code, name
500, mbb_prj_benefitcategory, lkp_val_growth, growth
501, mbb_prj_projecttype, lkp_val_appl, application
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Table_1.id, Table_2.Name as A, Table_2.Name as B
5001369, growth, application
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