A Table With A Unique Field
Jul 10, 2007
Hello,
I would like to store some frequently asked questions in a database.
As those questions/answers could be translated in several languages, I was thinking of using two tables :
The first table would contain a unique field : the key wich is an id for each faq.
The second table would contain those fields :
FAQ_ID : foreign key
LANG : language
QUESTION : the question translated in the good language.
ANSWER : the answer translated in the good language.
What I find embarrassing, is that first table just contains a unique field : the id. But it allows :
- to have a table in which a line correspond to an object. It is convenient for object relational mapping.
- it is more evolutionary. If, in the future, I have to add some statistics that concerns a faq, I will have the possibility to store them in the first table, avoiding in this way to duplicate data.
But, one more time, I find a bit embarrassing having a table with a unique field...
What is your opinion about that ?
Thank you in advance for any suggestion.
mathmax
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Oct 11, 2005
I need to to have a table that has a counter field (used to generate an id code for a record). This is not the primary id for the field but just a counter to label a record in another table, similar to a registration code for an event. This is a sequential counter that will start 1 and go up on each new record inserted into other tables. What I want to do is be able to query this counter table to get the next valid number and increment the count for the next time. This is a multi user web app so needs to prevent duplicate use of same number.How best should this be handled? A transaction to query and update the field?
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Apr 22, 2006
I'm new to MS SQL and VB. I have a table with one field JOB_NAME containing 20 records. Out of that field I want to retrieve 6 of the 20 records into a pulldown menu. They are all unique text names like so:
Anna Smith
John Doe
etc. I did not see IDs listed for any of the names in the table when I looked.
There is no common denominator to the names that can be filtered in the SELECT statement, and the 6 that I want will need to be pulled out individually.
Is there a way to do this with a SELECT statement? I have not found much information about how to extract unique records out of a single field. Here's the statement I'm using which pulls all of them:
strSQL = "SELECT DISTINCT JOB_NAME AS Names FROM [WORKER_NAMES] WHERE JOB_NAME<>' ' ORDER BY JOB_NAME ASC"
This gives me the total list but I only want to bring back 6 of the 20 for the pulldown.
Is there a way to modify this statement to pull only the records that I want?
Thanks for any help you can give.
AJ
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May 31, 2001
I have a bit field only alow one row as 1 all other rows should always 0.
How can I control that -- trigger or constraint?? How?
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Nov 17, 2004
I have a database table with a primary key that auto-increments - using MS SQL Server 2000.
However I have another field (standard field) that must not allow duplicates.
Besides writing code to sift through the database every time to check for duplicates (which would take long to search through the db every time), is there any setting in MS SQL Server 2000 that allows for an automatic check for duplication and will prevent duplicates!??
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Nov 18, 2004
I have a database table with a primary key that auto-increments - using MS SQL Server 2000.
However I have another field (standard field) that must not allow duplicates.
Besides writing code to sift through the database every time to check for duplicates (which would take long to search through the db every time), is there any setting in MS SQL Server 2000 that allows for an automatic check for duplication and will prevent duplicates!??
Here's an example of what I mean...
PK Entry_Sheet Cust_Id Date
1 62345 cust1 16/11/2004
2 45663 cust6 16/11/2004
3 82917 cust1 16/11/2004
4 19283 cust2 17/11/2004
5 28764 cust2 18/11/2004
I have everything created, with data already in the table. What I need now is some way to prevent duplicates from occurring.
The Entry_Sheet value needs to be unique. Instead of writing code to run through the entire db each time an insert is performed, is there a simpler way using a SQL Server DB!??
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Nov 30, 2000
I have built a table called Visit_Fact, which is detailed medical data. Within this table I have to create several index fields.
Well one of the fields ([Diag Code]) that should be included will have null values.
Well in Access I was able to build my new field called IndKey which has the following SQL statement:
IndKey: [PracticeCode]&[Physician Code]&[Chart #]&[Visit #]&[InsCoNum]&[CPT]&[Modifier]&[Units]&[Diag Code]
1. Example data with Diag Code = null
ABCD1234ABCDEF1234567MEDI19921301
2. Example data with Diag Code <> null
ABCD1234ABCDEF1234567MEDI19921301708.1
This runs fine in Access and if the Diag Code is null, Access does not care, it still puts all the other information together. Such as the examples above.
Well I tried doing this in a Stored Procedure and when I ran across a record that had a null value for the [Diag Code] it made the IndKey field Null for that record. If it was not null then it looked like Example 2.
What is the proper way of creating my unique field in SQL Server?
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Nov 10, 2005
I have a table where the key is an autonumber. I also have a field which holds the reference of a room eg 0BM1. It is nvarchar. Is there a way I can set this field to duplicates = No, so that my user cannot enter the same room reference more than once. Or do I have to do this check in my asp.net code ?
TIA
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Jul 23, 2005
Is it possible to have the field as a unique key and a optional one?It is like.. for example, office code has to be unique (cannot beduplicated with the same code) and it could be null too.
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Jul 24, 2013
I have a table in Access 2007 that has about 30 field names and I want to have a count of how many unique rows there are in each field. I want to have these results put into another table that will just have the field name and then the count of how many unique rows there are.
I have code in VBA that will loop through my SQL and change out the field name, but I can't seem to get the SQL right before I can start looping it. For just one field name this would be what I have to count the unique names...
So far I have this:
INSERT INTO newtable
COUNT(*) FROM (SELECT Raw_Table.FieldName, COUNT(Raw_Table.FieldName) AS CountOfFieldName
FROM Raw_Table
GROUP BY Raw_Table.FieldName);
And its not going too well.
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Oct 18, 2007
SQL 2000 Enterprise Manager won’t let me drop a unique key index and move it to another field. I get an error regarding ‘drop index not allowed because of unique key constraint enforcement.
Is there anyway to change fields for unique keys in SQL Enterprise Manager?
Thanks, Al
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Jul 20, 2005
I created a view that joins two tables (tblOrder and tblProduct). The fieldProductID is common to both. When I save the View I get the following errormessage: "Column names in each view must be unique." Is there a way aroundthat? Should I be naming my Key Fields and Foreign Key fields differently?I'm new to MS-SQL. Thanks for your help.Louis
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Sep 5, 2006
hello guys,
I have one table which is using to keep 10 difference type of serial number (that mean i got 10 column in the table). Is there any way to do unique key checking (individually, not combine) on these 10 serial number without sacrify the performance?
thank you.
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Jun 8, 2005
I am in a situation where I need to find out unique field names with different values in a table having 200+ columns.
Let's say I have two rows with 200+ columns ( I exported these rows from Lotus Notes to SQL Server) I am not sure what columns makes unique of these rows. It's going to be tedious by checking each column values.
Is there anyway I can write a squl query on these two rows which outputs column names which are having unique values.
I would appreciate If anybody gives me hint about achieving desired result
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Jun 5, 2012
I have created a view based on joining 3 tables, however, it is not possible to have a unique field in the view which I must need it and I must create index on some other fields. Is there any way to create sequence number or uniqie field in mssql view.
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Dec 20, 2012
I am working on a software primarily related to accounting with visual basic
Many of the problems and proposed several solutions for running sum, but I have read almost all of these interpretations,
have applied when running sum is a unique ID field. but almost all of the functioning of accounting reports are in chronological order. So he questioned what was the balance on 05.05.2012.
ID of the process is done, if the user enters a process backward a few things since then, the transaction date is old, but the ID is new, are experiencing problems. eg
ID DATE DEBIT CREDIT BALANCE
1 02.02.2012 100.00 0.00 100.00
6 04.04.2012 0.00 150.00 -50.00
3 02.05.2012 70.00 0.00 20.00
4 02.05.2012 80.00 0.00 100.00
2 06.06.2012 120.00 0.00 220.00
must balance the figure above.
if ID = 2 record, the record date 06/06/2012 and if the ID = 6, date 04/04/2012, the date the order is made if the listing is experiencing trouble getting balance. 2 records in the same day when the balance at worst formula breaks down. The big point is that I hang out in my project.
the only solution is to use a temporary table or writing about it in Visual Basic seems to calculate. the use of temporary table is not a solution, but unfortunately also very fast.
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Aug 10, 2015
I have a very large CSV file containing name-and-address information which I am reading in a Visual Basic project using the Microsoft.JetOLEDB.4.0 provider.
The key field on which the CSV file is to be filtered is the PostCode field. This is a UK-format PostCode "XXnn Nxx" where "XX" is one or more letters denoting a geographical area within the UK and "nn" is one or more characters (starting with at least one numeric digit) which when combined with the area code denotes a specific district within the geographical area. My aim is to identify all the unique UK postal districts held within my address CSV file.
Because I do not know how to use SQL to filter on the partial contents of a database field I am presently reduced to extracting unique full PostCodes using "SELECT DISTINCT PostCode,City,County FROM [ADDRESSES.csv]" into a DataTable object, then sequentially reading that DataTable using the operation of a dictionary object to identify unique PostCode areas, to finally construct the DataTable I need.
Is it possible in SQL to select records where the value of a varying number of characters before a space character in a given (PostCode) field is unique?
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Dec 27, 2013
So for years I was using the int identity(1,1) primary_key for all the tables I created, and then in this project I decided, you know, I like the uniqueidentifier using newsequentialid() to ensure a distinctly unique primary key.
then, after working with the php sqlsrv driver, I realized huh, no matter what, i am unable to retrieve the scope_identity() of the insert
So of course I cruised back to the MSSMS and realized crap, I can't even make the uniqueidentifier an identity.
So now I'm wondering 2 things...
1: Can I short cut and pull the uniqueidentifier of a newly inserted record, even though the scope_identity() will return null or
2: do I now have to add a column to each table, keep the uniqueidentifier (as all my tables are unified by that relationship) and also add a pk field as an int identity(1,1) primary_key, in order to be able to pull the scope_identity() on insert...
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Aug 21, 2014
I have a list of movies that show throughout the year. I would like to assign a unique numeric identifier to each text field.
I have provided some sample data with the output I would like. The Movie_ID in the sample data is just made up, feel free to assign any numeric identifier, preferably of the same length but not a necessity.
create table dbo.Movie_Pre_Fix
(
Report_Monthint,
IDint,
Movie_NameVarchar(50)
);
insert into dbo.Movie_Pre_Fix (Report_Month, ID,Movie_Name)
VALUES
(201406,0721312144,'SAW'),
[code]....
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Oct 12, 2012
I ran into an interesting situation. I'm working on contract and was looking at creating an ERD for an existing database when I ran into a problem. I found FK's that are referencing columns that do not have a unique constraint or a unique index.
I don't know the history of the database but was there a time in SQL Server history where this would have been possible? I scripted out the tables and created it in a test database. When I run the script to create the FK I get the following message.
I double checked the original tables and this FK does exist in table1 and there is no unique anything in the referenced table, table2. Currently the database is running on SQL Server 2008 Ent.
ALTER TABLE [dbo].[table1] WITH CHECK ADD CONSTRAINT [FK_table1] FOREIGN KEY([Col1])
REFERENCES [dbo].[table2] ([col2])
There are no primary or candidate keys in the referenced table 'dbo.table2' that match the referencing column list in the foreign key 'FK_table1'.
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Sep 4, 2007
Hi guys,
I need to get a column with the sum of the field "SUF" from table "JurnalTransMoves_1" when that field ("SUF") is ordered by the field "REFERENCE" from table "Stock", and Show the value only once.
The desired result should by something like:
Stock.REFERENCE
JurnalTransMoves.SUF
SUM(JurnalTransMoves.SUF) Group By Stock.REFERENCE
5752
10
60
5752
20
5752
30
5753
400
3000
5753
500
5753
600
5753
700
5753
800
5754
7
15
5754
8
Is there any chance to do that?
Thanks in advance,
Aldo.
Code Snippet
SELECT
Accounts.FULLNAME AS 'ACCOUNTS.FULLNAME',
Accounts.ACCOUNTKEY AS 'ACCOUNTS.ACCOUNTKEY',
Accounts.FILTER AS 'ACCOUNTS.FILTER',
Accounts.SORTGROUP AS 'ACCOUNTS.SORTGROUP',
AccSortNames.SORTCODENAME AS 'AccSortNames.SORTCODENAME',
Accounts.CreditTermsCode AS 'Accounts.CreditTermsCode',
CreditTerms.DETAILS AS 'CreditTerms.DETAILS'
CreditTerms.CURRENF AS 'CreditTerms.CURRENF'
CreditTerms.MONTH AS 'CreditTerms.MONTH',
CreditTerms.DAYS AS 'CreditTerms.DAYS',
CreditTerms.SHAREPRC AS 'CreditTerms.SHAREPRC',
CreditTerms.TEMF AS 'CreditTerms.TEMF',
CASE
WHEN CAST(Accounts.VatExampt AS int) = 0 THEN 'x'
WHEN CAST(Accounts.VatExampt AS int) = 1 THEN 'y'
ELSE 'Undefined' END AS 'VAT',
Stock.DOCUMENTID AS 'Stock.DOCUMENTID',
DocumentsDef.DOCNAME As 'DocumentsDef.DOCNAME',
CASE
WHEN CAST(Stock.DOCUMENTID as int) = 1 THEN Stock.DOCNUMBER
WHEN CAST(Stock.DOCUMENTID as int) = 3 THEN Stock.DOCNUMBER
WHEN CAST(Stock.DOCUMENTID as int) = 35 THEN Stock.DOCNUMBER
WHEN CAST(Stock.DOCUMENTID as int) = 120 THEN Stock.DOCNUMBER
WHEN CAST(Stock.DOCUMENTID as int) = 31 THEN Stock.REFERENCE
WHEN CAST(Stock.DOCUMENTID as int) = 44 THEN Stock.REFERENCE
WHEN CAST(Stock.DOCUMENTID as int) = 34 THEN Stock.REFERENCE
WHEN CAST(Stock.DOCUMENTID as int) = 43 THEN Stock.REFERENCE
WHEN CAST(Stock.DOCUMENTID as int) = 40 THEN Stock.REFERENCE
ELSE '' END AS 'Invoice No',
Stock.VALUEDATE AS 'Stock.VALUEDATE',
JurnalTrans.DESCRIPTION AS 'JurnalTrans.DESCRIPTION',
JurnalTrans.REF2 AS 'JurnalTrans.REF2',
JurnalTransMoves.SUF AS 'JurnalTransMoves.SUF',
JurnalTransMoves_1.SUF AS 'JurnalTransMoves_1.SUF',
JurnalTransMoves.TRANSID AS 'JURNALTRANSMOVES.TRANSID'
FROM
JURNALTRANSMOVES AS JurnalTransMoves_1
INNER JOIN JURNALTRANSMOVES AS JurnalTransMoves
INNER JOIN (SELECT DISTINCT JURNALTRANSID, RECEIPTSTOCKID, FULLMATCH, TABLFNUM, CKCODE, RSORT, RUSEFID FROM RECEIPTJURNALMATCH) AS ReceiptJurnalMatch_1 ON ReceiptJurnalMatch_1.JURNALTRANSID = JurnalTransMoves.ID
INNER JOIN ACCOUNTS AS Accounts ON JurnalTransMoves.ACCOUNTKEY = Accounts.ACCOUNTKEY
INNER JOIN JURNALTRANS AS JurnalTrans ON JurnalTransMoves.TRANSID = JurnalTrans.TRANSID
INNER JOIN STOCK AS Stock ON JurnalTrans.STOCKID = Stock.ID ON JurnalTransMoves_1.TRANSID = JurnalTrans.TRANSID AND JurnalTransMoves_1.ACCOUNTKEY = Accounts.ACCOUNTKEY
LEFT OUTER JOIN ITEMS AS Items
INNER JOIN STOCKMOVES ON Items.ITEMKEY = STOCKMOVES.ITEMKEY
INNER JOIN ITEMSORTNAMES AS ItemSortNames ON Items.SORTGROUP = ItemSortNames.ITEMSORTCODE ON Stock.ID = STOCKMOVES.STOCKID
LEFT OUTER JOIN ACCSORTNAMES AS AccSortNames ON Accounts.SORTGROUP = AccSortNames.ACCSORTCODE
LEFT OUTER JOIN CREDITTERMS AS CreditTerms ON Accounts.CREDITTERMSCODE = CreditTerms.CREDITTERMSCODE
LEFT OUTER JOIN DOCUMENTSDEF AS DocumentsDef ON Stock.DOCUMENTID = DocumentsDef.DOCUMENTID
WHERE
Accounts.SORTGROUP Between '3001' And '3020'
AND Accounts.ACCOUNTKEY IN ('123456')
ORDER BY Accounts.ACCOUNTKEY
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Jul 26, 2015
I have the following query:
Select p.Id [SenderId], p.Username, up.PhotoId,
CASE
WHEN mr.ReadDate is null then 1 -- New message
ELSE 0 -- Message has been read
END AS NewMessage,
p.LastLoggedIn, p.LoggedIn
[Code] ....
The above query returns me all messages (inbox functionality) that have been sent to mr.ReceipientId, the issue I have is when I send another email to the recipient the readdate field will be null, and the other emails linked to the recipient which have also been sent via me will have a readdate date. This causes duplicate rows to appear due to the case statement, I'm trying to figure out if / how it is possible to only display the one row per conversation and set newmessage to 1 if there is an un-read message otherwise show 0 ?
So instead of showing this:
2Person102015-07-26 17:07:24.9370
2Person112015-07-26 17:07:24.9370
I'm trying to get it to look like this:
2Person112015-07-26 17:07:24.9370
Or if we have no new mail (read date is not null) then it will appear like this, and I can confirm when there is no new mail it works as expected.
2Person102015-07-26 17:07:24.9370
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Sep 22, 2015
I have a field I am trying to bring into a SQL statement
,ISNULL(Convert(nvarchar(50),OPP1.OriginatingLeadId),'') AS 'OriginatingLeadId'
I get this error message
Conversion failed when converting from a character string to uniqueidentifier.
the field specs' originatingleadid is attached ....
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Oct 21, 2014
I have a comma separated field containing numerous 2 digit numbers that I would like splitting out by a corresponding unique code held in another field on the same row.
E.g
Unique Code Comma Separated Field
14587934 1,5,17,18,19,40,51,62,70
6998468 10,45,62,18,19
79585264 1,5,18
These needs to be in column format or held in an array to be used as conditional criteria.
Unique Code Comma Separated Value
79585264 1
79585264 5
79585264 18
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Apr 11, 2008
Hi,
I have source table , fact table and four dim. tables , I have to update a field in fact table from source table.
How can I do it?
thanks...
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Sep 24, 2015
I have a transaction table having about 40 crore rows in source. It don't have timestamp and unique key columns. It have only Bill_month and Bill_Year columns. Actually for loading this table into staging I have added a new datetime column by adding default bill_date as 01. Then
* First we delete last 3 month data from staging tables.
* Get last 3 months data from source table.
* Load that 3 months data from source to staging table.
We do this because we only get update for last three months data. Now I have to include this transaction table as Fact table in DW. What will be the best practice for loading the fact table by picking data form staging table. Also we have to look up with dimensions for Foreign Keys.
* Should I implement the same method of deleting last 3 months records and loading them again.
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Apr 28, 2008
need help
how to archiv table to another table with unique number for all rows once + date time (not the second only day time +minute)
i need whan i insert to the another table add 2 more fields (unique number , date_time )
this is the table 1 i select from
ID fname new_date val_holiday
----------------------------------------------------
111 aaaa 15/03/2008 1
111 aaaa 16/03/2008 1
111 aaaa 18/03/2008 1
111 aaaa 19/03/2008 1
111 aaaa 20/03/2008 1
111 aaaa 21/03/2008 1
222 bbb 02/05/2008 3
222 bbb 03/05/2008 3
222 bbb 04/05/2008 3
222 bbb 05/05/2008 3
222 bbb 06/05/2008 3
222 bbb 07/05/2008 3
222 bbb 08/05/2008 3
222 bbb 09/05/2008 3
333 ccc 03/04/2008 4
333 ccc 04/04/2008 4
this is the table 2 i insert into
----------------------------------
ID fname new_date val_holiday unique number date_time
--------------------------------------------------------------------------------------------------------------------
111 aaaa 15/03/2008 1 666 15/04/2008 17:03
111 aaaa 16/03/2008 1 666 15/04/2008 17:03
111 aaaa 18/03/2008 1
111 aaaa 19/03/2008 1 666 15/04/2008 17:03
111 aaaa 20/03/2008 1 666 15/04/2008 17:03
111 aaaa 21/03/2008 1 666 15/04/2008 17:03
222 bbb 02/05/2008 3 666 15/04/2008 17:03
222 bbb 03/05/2008 3
222 bbb 04/05/2008 3 666 15/04/2008 17:03
222 bbb 05/05/2008 3 666 15/04/2008 17:03
222 bbb 06/05/2008 3 666 15/04/2008 17:03
222 bbb 07/05/2008 3 666 15/04/2008 17:03
222 bbb 08/05/2008 3 666 15/04/2008 17:03
222 bbb 09/05/2008 3 666 15/04/2008 17:03
333 ccc 03/04/2008 4 666 15/04/2008 17:03
333 ccc 04/04/2008 4 666 15/04/2008 17:03
for evry archiv table to another table (insert) i need to get a unique number + date time (not the second only day time +minute)
next insert ......
ID fname new_date val_holiday unique number date_time
--------------------------------------------------------------------------------------------------------------------
111 aaaa 15/03/2008 1 667 15/04/2008 17:15
111 aaaa 16/03/2008 1 667 15/04/2008 17:15
111 aaaa 18/03/2008 1
111 aaaa 19/03/2008 1 667 15/04/2008 17:15
.........................
.....................................................................667 15/04/2008 17:15
next insert ......
ID fname new_date val_holiday unique number date_time
--------------------------------------------------------------------------------------------------------------------
111 aaaa 15/03/2008 1 668 15/04/2008 08:15
111 aaaa 16/03/2008 1 668 15/04/2008 08:15
111 aaaa 18/03/2008 1
111 aaaa 19/03/2008 1 668 15/04/2008 08:15
.........................
.....................................................................668 15/04/2008 08:15
TNX
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Jun 25, 2007
HI everybody need help on this..
I have two tables below
table1
country countryid
africa ___
usa ___
italy ___
Spain ___
table2
countryid country name
1 africa
2 germany
3 italy
4 usa
I need to write the countryid of table 2 to the field countryid in table1 using the criteria of the correspoinding country name table 2 to country of table 1 if it write countryid else 0..
THE RESULT WOULD BE
country countryid
africa 1
usa 4
italy 3
spain 0
thanks
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Nov 25, 2007
Hi,
I have one table (PermProportionalCosting) that contains employeecode, costcentre and proportionpercentage. An employee may have two or more records in this table, indicating that their salary has been split across multiple costcentres.
Another table (Employee) contains a default costcentre for each employee.
Another table (TransActualHistoricalMaster) contains the hours paid to each employee for each pay period.
My query so far selects all employees and the total hours worked from the TransMaster table, and then selects the costcentre and proportionpercentage from the PermProportionalCosting table. Multiple lines are created for all employees in the PermProportionalCosting table, with each line indicating the proportionpercentage and associated costcentre.
This is my query so far:
SELECT TransActualHistoricalMaster.EmployeeCode, Employee.PreferredName, Employee.LastName, CostCentre.Description, PermanentProportionalCosting.CostCentreCode,PermanentProportionalCosting.PercentageSplit,
TransActualHistoricalMaster.OrdHours
FROM TransActualHistoricalMaster
INNER JOIN Employee ON TransActualHistoricalMaster.EmployeeCode = Employee.EmployeeCode
INNER JOIN CostCentre ON Employee.CostCentreCode = CostCentre.CostCentreCode
FULL OUTER JOIN PermanentProportionalCosting ON TransActualHistoricalMaster.EmployeeCode = PermanentProportionalCosting.EmployeeCode
GROUP BY TransActualHistoricalMaster.EmployeeCode, Employee.PreferredName, Employee.LastName, CostCentre.Description, PermanentProportionalCosting.CostCentreCode, PermanentProportionalCosting.PercentageSplit, TransActualHistoricalMaster.OrdHours
This next bit is what I am unsure of.
I would like the CostCentre field from the Employee table to go into the PermanentProportionalCosting.CostCentreCode column where the employee doesn't have a record in the PermanentProportionalCosting table. In the above query, there is a null value for each employee that doesn't have a record in the PermanentProportionalCosting table, so I would like my query to replace the null value with the costcentre from the Employee table.
Any assistance would really be appreciated.
Thanks.
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Jan 19, 2005
I need create a field to store tax rate. I need only 2 decimal points. I defined the field as decimal, precision=5 and scale=2. Does it mean that it can hold value from 0.00 to 999.99?
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May 1, 2015
I am having issues trying to write a query that would provide me the unique GUID numbers associated with a distinct PID if the unique GUID's > 1. To summarize, I need a query that just shows which PID's have more than one unique GUID. A PID could have multiple GUID's that are the same, I'm looking for the PID's that have multiple GUID's that are different/unique.
Table1
GUID PID
GUID1 PID1
GUID1 PID1
GUID1 PID1
GUID2 PID1
GUID3 PID2
GUID3 PID2
GUID3 PID2
The result of the query would only have PID1 because it has two unique GUID's. PID2 would not be listed has it has the same GUID3 in each row.
Result:
PID1
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Oct 30, 2006
Let say I have 6 tables. I want to autogenerate the PK for each table and that is unique for each table and cant be duplicated on other tables. Let say I have table with PK of 1, so table2 to table6 wouldnt have a PK of 1. If table2 have a PK of 2, table1, table3 to table6 wouldnt have a PK of 2. Same for others. Identity will not be appropriate. Will 'uniqueidentifier' data type suffice? How bout guid? Or what must be my datatype? Or what will I do to implement this? Any links? Thanks
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Jun 6, 2007
Hello,
I have a little problem with DB, I'm using MS SQL 2005 Express edition.
I have a few tables in my DB, every table contains a list of objects and I need unique ID for every object, I can do it for one table, but not for more then one.
Is there any solution for this problem?
Thanks
John
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