SQL Server :: Merging Three Tables Together In One Table?
Jan 7, 2011
I have three tables. I need to merge these three tables into one table. There is an ID column in all these three tables. The ID's can be same in all three tables or they can be different. If the IDs are same then I need to merge based on those ID's so if the ID 1 exists in Table A, table B and Table C then one row will be created in the resulting master tables, but if the Id's are different then one individual row will be created in each table.
Also, some of the columns are same in all three tables, but some are different, but if the ID is same then I just want to append that column in the existing table.
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Mar 7, 2010
I am using aspnet_regsql.exe to add membership tables to my database.
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the run command where file is located is below
C:WINDOWSMicrosoft.NETFrameworkv2.0.50727
I just get the file below opening instead
[Code]...
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Mar 27, 2010
I have a members section of a website where when they first register to become a member, they pick their top 5 sports personalities/stars. Then when they log in to the members area, I want to display members news which should show:
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(In the CMS, admins can edit a news story and they have 5 dropdowns of all the sportstars so they can for example have for a news story: Sportstar1=Tiger Woods, Sportstar2=David Beckham etc) So as a member, if I have selected David Beckham as one of my top 5s, then all news tagged with him via the CMS are displayed.
There may be a better way to approach it, but basically I am creating one DataSet, then firing off 5 SQL queries, each SQL query is like this:
[Code]....
Then in my Page Load I do this:
[Code]....
The problem is that my repeater is inl showing news for myStar1 i.e. it is nly showing the first table which will be called "News1".
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Mar 25, 2011
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Feb 27, 2011
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Shall I write another INSERT INTO (..) SELECT FROM command or is there any other way?
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Jan 12, 2011
I have two tables master and comp table. In master table, I have columns called LB1, LB2, LB1_ID, LB2_ID and in my comp table I have ID and CompName. I need to update my master table the following way
If LB1 in master table has a value of 'XYZ' then I need to find that value in Comp Table in column compName and then put the ID from comp table to master table in LB1
master
LB1 LB2 LB1_ID LB2_ID
XYZ HIJ
ABC KLM
DEF RAW
PQR VQS
Comp
ID CompName
1 XYZ
2 ABC
3 RAW
4 DEF
5 VQS
6 HIJ
7 KLM
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master
LB1 LB2 LB1_ID LB2_ID
XYZ HIJ 1 6
ABC KLM 2 7
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Mar 18, 2011
I have 3 tables. I need to insert data from 2 tables into the 3rd table.
The first table has 2 fields -- c_id, c_key
The second table has -- t_id, u_id, partial_c_key
I need to insert c_id, u_id in the 3rd table.
Problem is partial_c_key in the second table contains only a part of the c_key in the first table.
Ex:
First table:
c_id--c_key
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2--200B
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Second Table:
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1--23--200
2--36--301
In the data above partial_c_key 200 has 3 c_ids in the first table (1,2,3 with values 200A, 200B, 200C) and 301 has just 1 which is 301A.
In the 3rd table I need to insert c_id, u_id so the data should be
u_id -- c_id
23 -- 1
23 -- 2
23 -- 3
36 -- 4
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Jan 29, 2011
Inner Join:- Returns a row when there is matching table in both tables. we can use comparison operator like =,<,>,<>
I created two tables
TableA
ID OID Type
1 1 A
2 6 B
3 7 C
4 10 D
TableB
ID Value
1 10
2 30
3 40
5 60
6 70
Basic Inner Join select Type From TableB as a inner join TableA as b on a.ID=b.OID Result Type
A
B
If i want only the type which has not match in tableB then i can use not in subquery i get the result if i m using select Type From TableB as a inner join TableA as b on a.ID<>b.OID then i get
Type
A
A
A
A
B
B
B
B
C
C
C
C
C
D
D
D
D
D
18 rows affetected i m suprise
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Jan 21, 2011
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[code]...
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I have two tables:
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Using the [Code].... for server cache Dependency, to get a list of the tables that are enabled, We use the line below:
[Code]....
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