Mining Approach?
Jul 4, 2007
I have a scenario in mind and was wondering if anyone had any suggestions on an approach.
Lets say I have a dataset where I have captured various attributes about blade servers in a rack. I have internal temperature, fan speed, disk reads, cpu temperature and failure events. Each of these are continuous variables except for the failure event, which has only two states, 'true' or 'false' which indicates whether a failure occurred at that point in time.
The table looks like this:
MachineID
Timestamp
Temperature
FanSpeed
Reads
CPUTemp
Failure
At the time of failure, only the MachineID, Timestamp and Failure values will be populated in the table. The failures at this time are not categorized or discriminated from each other in any way although they will be in the future. We're looking to use a mining algorithm to determine which variable is the best predictor of failure, or combination of variables. What do you think is the right approach? How might this approach change once the failures do become categorized and differentiated?
Thanks,
Frank
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Apr 26, 2006
Hi, all here,
I am wondering where can I store my mining results in data mining engine? For example, I got mining results like accuracy chart, decision trees, and other formats of results based on different mining algorithms I used for my data mining, so where can I actually store the results for reporting service use later? Is it possible to do that in SQL Server 2005?
Thanks a lot for any help and guidance in advance.
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Sep 26, 2006
Hi,
I have just run a simple data set through a model to predict a simple true or false value (i.e. binary output)
The Lift Chart/Mining Legend in Analysis Services shows three results €“ Score, Population Correct (%), and Predict Probability (%)
Population Correct I beleive is the percentage of predictions it got right out of the total number of predictions it tried to make. Is this correct?
However, I can€™t work out how the other two are derived in particular the 'SCORE'. To give a live example the scores were as follows:
Model Score Pop Correct Pred Probability
Decision Trees 0.83 76.59% 54.28%
Neural Network 0.75 67.63% 50.05%
Ideal Model 100.00%
Can anyone help with this and give a detailed explanation?
Many thanks,
S Rajput
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Apr 11, 2007
Hi,
I am trying to model data in analysis services with the Advance Create Mining Model function in the excel addin. I am having trouble creating an association model that works like the Associate button above the Advanced button.
The format of my data is like this
OrderID Product
100 Bike
100 Helmet
100 Shoes
200 Helmet
200 basketball
200 Bat
300 Shoes
300 Socks
The associate button works perfectly since it asks me which column is the transaction id (orderid) and which column I am trying to predict (product). The advanced create mining model asks me to determine what the columns are...
OrderID=key Product=Input+Predict?
When I run the advance create mining model associate, I get a browser that gives me no rules and the support for only one item itemset (each product but no combination of products).
Does anyone know what I have to do to get it to work like the associate button?
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Oct 18, 2006
Dear friends,
I encounter a serious problem.
I would like to develop an application that can create Data Mining structures and a mining model in SQL Server 2005 with VB.NET. I tried the code from book Data Mining with SQL server 2005 in chapter 14 but did not work. Any good idea?
Please help me.
Best regards,
Manolis
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Oct 20, 2006
Thank you very much for your help.
The errors that I can see in the code that you gave in your answer are the following and they are more or less the same as I had previously
I tried the code but initially I have encounter the following problems.
1. In any line that have the declaration As Server, As Database like in
Public Function CreateDatabase(ByVal srv As Server, ByVal databaseName As String) As Database gives me the problem that type Database is not declared the same type Server is not declared and it does not give me any option.
2. In addition to that for As DataSource, As RelationalDataSource, As RelationalDataSourceView, As ScalarMiningStructureColumn, As DataSourceViewBinding, gives me the problem that type is not declared.
3. Finally in mc = New MiningModelColumn("Yearly income", Utils.GetSyntacticallyValidID("Yearly income", Type.GetType(MiningModelColumn))) is not accesible in this context because it is 'Private'.
I have some more problems but I thing that by solving the above that I referred I will solve the rest.
Thank you any way.
Best regards,
Manolis
PhD student
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Jul 18, 2006
I perform data mining on all products and a specific product category.
Do I need to create 2 data source views, one for all products and the other one for the specific product category?
Afterward, I run the Data Mining Wizard 2 times to create 2 mining structures.
I also need to add the same mining model (e.g. Bayes, Cluster) to each of these mining structures.
Is there any simple way to do it?
Thanks.
Joe.
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Nov 27, 2006
Hi ,all here,
Thank you very much for your kind attention.
I just found that I am not able to view the accuracy chart for my mining model. The error message is: no mining models are selected for comparision. Which is quite strange.
Any guidance? thank you very much.
With best regards,
Yours sincerely,
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Sep 14, 2007
Hi,
I am not getting Mining Accuracy Chart and Min ing Model Prediction
Plz tel me how to do.And how to use the filter input data used to generate the lift chart and
select predictable mining model columns to show in the lift chart
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Sep 29, 2015
I followed the tutorial posted at [URL] ...
Everything was ok until the last step where I had to process the mining structure which resulted in a warning
"Informational (Data mining): Decision Trees found no splits for model, Tbl Decision Tree Example."
What does this error mean? How do I resolve it? Also, I only see the first level in the Mining Model Viewer, I don't see the levels 2 and 3.
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Feb 23, 2007
Hi, all experts here,
I would like to know if there is any way to migrate third-party data mining packages with SQL Server 2005 data mining algorithms together then we can have a comparison among all of them to get the best results for training models.
I am looking forward to hearing from you.
Thanks a lot.
With best regards,
Yours sincerely,
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May 31, 2006
Hoping someone will have a solution for this error
Errors in the metadata manager. The data type of the '~CaseDetail ~MG-Fact Voic~6' measure must be the same as its source data type. This is because the aggregate function is not set to count or distinct count.
Is the problem due to the data type of the column used in the mining structure is Long, and the underlying field in the cube has a type of BigInt,or am I barking up the wrong tree?
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Apr 30, 2015
I'm a beginner with SQL 2012 SSDT & SSMS. I get this error message when I try to deploy my project:Â
"Error 6
Error (Data mining): KEY SEQUENCE columns are not supported at the case level. The 'Customer Key' column of the 'TK448 Ch09 Cube Clustering' mining structure contains content that is not valid.
0 0
"
I am finding it hard to locate the content that is not valid. I've been trying to find a answer for this problem but can't seem to find anything. How can I locate the content that is not valid and change or delete it so that I can deploy this solution?
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Jun 4, 2015
Having successfully created :
- a data mining structure with about 80 columns.
- a data mining model using Microsoft_Decision_Trees with 2 prediction columns.Â
I thought I would then explore the possibility of have more than 2 prediction columns, in this case 20.
I get an error message and I can't work out :
a) if this is because there's a limit to the maximum number of prediction columns and where that maximum is stated.
b) if something else has become corrupted
c) there's a know bug and if the error message is either meaningful or not.
Either way, I'm unable to complete the data mining wizardÂ
The error message is :Errors in the metadata manager. Either the mining structure with the ID of '[my model Structure]' does not exist in the database with the ID of 'DMAddinsDB', or the user does not have permissions to access the object.
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Oct 25, 2007
Hi all,
I am using Microsoft_Time_Series and have set HISTORIC_MODEL_GAP to various values (from 1 to 21). I always get this error:
Error (Data mining): The 'HISTORIC_MODEL_GAP' data mining parameter is not valid for the 'My Time Series' model.
In Algorithm Parameters window, this parameters is not there by default, so I have to add it.
Any tip will be greatly appreciated.
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Jun 15, 2015
Implementing data mining Add-in in an academic setting? We need to handle over 150 new students a semester and have their connection to Analysis Services survive for their four years at the college. We are introducing data mining to every freshman business student as a unit within their Intro to Excel class (close to a month of work to give them a sense of what is possible). Other courses later in their curriculum will expand on that introduction.Â
Once implemented, we would have as many as 900 connections to manage (four years from now). It is possible that multiple sections will be running at the same time, so 40 students may be accessing the data mining tools concurrently. Â
Is there a way to "bulk establish" the access credentials and establish those databases?
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Nov 15, 2006
I get the following error when I try to load the mining model in the mining model viewer
Query (1, 6) The '[System].[Microsoft].[AnalysisServices].[System].[DataMining].[NeuralNet].[GetAttributeValues]' function does not exist.
I get a similar error when I try to load the Load Mining Accuracy Chart
Failed to execute the query due to the following error:
Query (1, 6) The '[System].[Microsoft].[AnalysisServices].[System].[DataMining].[AllOther].[GenerateLiftTableUsingDatasource]' function does not exist.
I have OWC 11 installed. What am I missing here?
Thanks
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Aug 4, 2015
With SASS Database i have created Data mining Structure Using Time series algorithm, while processing the SSAS db, Data mining  taking long time to process, so how we can  reduce processing time ???
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Aug 17, 2006
Hi,
I've tried those two operations in the Management Studio.
Though we can create a mining structure and mining model in Management Studion,
but we cannot process the analysis-service database.
(1) I create only a mining structure through CREATE MINING STRUCTURE.
No error reported. But if I process the analysis-service database in Management Studio I always get error
'Error : The '<mining_structure__name>' structure does not contain bindings to data
(or contain bindings that are not valid) and cannot be processed.
I then tried to create it by creating and running an XMLA script. It was successful.
However, it's much harder to learn XMLA.
If any of you created an analysis-service database in Mgt Studio, and create a mining
structure in the same place using DMX script, can you process the database?
(2) Is there any use of CREATE MINING STRUCTURE operation without binding
to any table? Examples I saw so far did not show relating it to do. In my experience
processing the analysis-service database with that mining structure is doomed to fail.
(3) Is there any way we can create mining structure through CREATE MINING
STRUCTURE operation in Management Studio and use RELATED TO clause
to bind it to any Relationship to an attribute column (mandatory only if it applies), indicated by
the RELATED TO clause
(4) If this is the fact, is there any use of CREATE MINING STRUCTURE operation?
If we use BI Dev Studio, it's much easier to use the wizard.
(5) I found I cannot create a mining model inside a mining structure through operation
CREATE MINING MODEL. If you call that operation, you end up having a mining
model and a mining structure with the same name. I found that in order to create a
mining model inside a mining structure you have to call operation ALTER MINING
STRUCTURE ADD MINING MODEL. Is it true this is the only way?
Thank you,
Bernaridho
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Mar 30, 2004
Let me see if I can explain this.
I have the need to pull data from multiple tables from a DB2 system via ODBC and update or insert as needed into tables in a SQL200 DB.
Step 1.
The data from the initial parent table will need to be limited to being a set number of days old, which I have in place and working.
Step 2
The next tables data needs to be limited from the data retrieved in step 1 (I’d like to use the paprent table retrieved in step 1, that is in SQL now, rather than doing it on the DB2 side.
Step 3
The returned rows here, need to be limited to key values returned from step 2
Additional steps apply, but nearly all will be limited to the results of parent tables from the prior step.
What is the best approach to this? I really want to pull table A to SQL, and limit the next child set from Table A, that was pulled to SQL in the prior step.
I also need to do updates rather than dropping and creating the needed tables each time. Insert if no key exists, etc .etc.
What is the best approach?
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Mar 20, 2006
I've been working on this project, and had it working in MySQL, but it was badly done and couldn't last more than a few hours without growing so large that everything slowed way down. I don't expect anyone to tell me exactly what to do, just please provide an outline of what the best way to approach this in SQL Server 2005 is.
To simplify it, I have one table "Items" and another table "ItemPrices". Items has an id and a name. Each row in ItemPrices has an id for the item, a price and two datestamps (added, last updated).
On average, there's about 15,000 active items, 50% of them have new prices every couple minutes, so I'm looking at what seems like a ton of data being constantly imported. There's probably a good way to do this but I only know the bad way :)
So.. what I want to be able to do is have maybe a stored procedure (?) that takes the item name and price as parameters. (In MySQL I was using "INSERT... ON DUPLICATE KEY UPDATE")
A. If it's a new item name, it will add a row to the Items table and a row to ItemPrices
B. If it's an existing item with the same price as the current price (the most recent price for that item in ItemPrices) it will update the "last updated" date field
C. If it's a new price it will insert a row into ItemPrices for that item
Also, I want historical pricing data, but if I ever release this, 95% of the users will just be looking at current prices. I need the current prices to be very fast to query, in my MySQL version I was using something like this: "SELECT... join on lastupdated=(SELECT Max(lastupdated) FROM ItemPrices ...", after I had 300k price updates querying a list of items took like 15 seconds.. there's got to be a better way? What should I do to make this faster?
Does this make any sense? Hopefully someone can lead me in the right direction. Thank you very much!
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May 24, 2008
Hello all.
I use MDX on a cube which provides data about animal population.
The cube contains the keyfigure "ANIMALS" that takes the number of animals.
The cube has a dimension "VERSION" which is used to identify the keyfigure
as a target or an actual value (possible values: "actual" and "target")
The cube has another dimension "ZONE" for the population zones.
Possible values for zones: "A", "B", "C" and "D".
Now I want to create an MDX statement, that gives me a result row like this:
Actual number of animals (as sum of all 4 zones) in column no. 1,
Target number of animals (as sum of all 4 zones) in column no. 2,
Achieved percentage (as actual number / target number * 100) in column no. 3.
Until here my statement works and it looks like this:
WITH MEMBER [VERSION].[achieved] AS '[VERSION].[actual] / [VERSION].[target] * 100'
SELECT {[VERSION].[actual], [VERSION].[target], [VERSION].[achieved]} on COLUMNS
FROM [$MYCUBE]
WHERE ([Measures].[ANIMALS])
It surely is possible that the achieved value for all zones together is equal to or greater than 100%,
while single zones might have an achieved values less than 100%.
In order to account on this, i would like column no. 4 to display one of these words:
"ok" if none of the single zones has an achieved value smaller than 100%,
"warning" if any of the single zones has an achieved value between 96 and 99%,
"alert" if any of the single zones has an achieved value smaller than 95%.
That means, i want e.g. the word "yellow" if the lowest achieved value
of the 4 zones is between 96 and 99. I want to have "red" if the lowest value
is smaller than 95.
I am quite new to MDX and I have struggled quite a long time with this.
I would be grateful for a hint on how i have to modify / enhance my MDX statement.
Regards. Peter.
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Sep 27, 2006
I have what I feel like is a simple package I am working to create. I am teaching myself SSIS as I go along.
Source server SQL 2000 database allows NULL values in columns.
Destination Server also SQL 2000 but the database required a value in each column.
So I do a basic source select what I want. I next need to read the values and determine if null then insert a space, do some column matching and insert them into the destination sever.
I believe I should use a Derived Column and an expression ISNULL to accomplish what I want.
Maybe there is a better way. Suggestion and comment appreciated.
Ryan
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May 18, 2006
Greetings my friends
I am attempting to solve the following problem using SSIS, actually I am attempting to convert a SQL Server 2000 DTS package in to a SSIS package.
The package does the following :
1) Retrieve the maximum Price_ID (PK) from a PRICE dimension table.
2) Populate a staging table with data coming from a source system where the PRICE_ID > (Price_ID from above)
3) Update the actual DIM table with the new data help in the staging table.
For this task I want to learn the use of the Lookup component which I think is appropriate.
My questions are as follows :
If I create a global variable to hold the maximum PRICE_ID (see point 1). How do I get to use the variable in the my Data Flow Data source?!
I am totally confused... I don't even know where to start with this.
Your help would be appreciated.
Thanks SQL friends.
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Jun 21, 2006
I've been banging my head for a while now, and it is sore! :-P
I'm a best practice/Microsoft approach type of person and want to make sure I do things correctly.
I have a database, kind of like a forum.
Obviously executing multiple queries in one "batch" (stored proc) would have an impact on the performance.
Now, I would like to give a more detailed/specific error back to the caller (either by aid of error code or whatever) with such situations like...
"EditReply"
Edit reply takes the threadID, replyID and userID.
Before actually commiting the changes, it needs to check:
1) does the user exist in the database? (during the editing of the reply, perhaps the user may have been deleted before running the stored proc, who knows)
2) does the thread exist?
3) does the reply exist?
if the conditions are met, only then will it go ahead and update the database. Now that is 3 queries, and 4 statements overall to make a change to a field/table.
Obviously if one of the commands returns false, in other words if say "does the thread exist" returns 0 (thread doesnt exist) it will return back to the caller an errorcode, which they will handle in their application. Thats all fine but the question is
Am I doing this correctly? (no) - how can I improve this? What do I need to think about?
Of course I would like to give a more detailed error back to the caller (aid of errorcode designed in the application overall) instead of just "no, databases not updated".
In this situation, am I wrongly assuming that the database designers use this type of approach?
Please help, I value your feedback and suggestions. I want to improve and think of the right lines of doing these things.
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Aug 7, 2006
Hello,
I'm doing my best here, but need some help. I have a client that has a company list that they want searched by key word. This is exported from another program (in excel) that they want used and searched on their website.
Bad news, is each Keyword is listed with the company separately. So if a company has 5 different key words, they will be listed in the excel file 5 times.
The info I have is Name, Address, City, State, Phone, Keywords:
So example of excel is:Company A, 123 Main St, Mycity, Mystate, 123-123-1234, Green
Company A, 123 Main St, Mycity, Mystate, 123-123-1234, Furry
Company A, 123 Main St, Mycity, Mystate, 123-123-1234, Large
Company A, 123 Main St, Mycity, Mystate, 123-123-1234, Circular
Company B, 746 Sparrow Ave, Diffcity, Diffstate, 987-987-9876, Blue
Company B, 746 Sparrow Ave, Diffcity, Diffstate, 987-987-9876, Furry
Company B, 746 Sparrow Ave, Diffcity, Diffstate, 987-987-9876, Small
I am able to import this large (4.2 MB) file into a table called fctable
What i'm trying to do is write SQL scripts or queries that can insert into a Company Table and Keyword Table.
I'm trying to write this through asp.net 2.0 (so the excel file is uploaded) and have tried to write my inserts like
INSERT INTO [Company] ([Name], [address], [City], [State], [Phone]) VALUES (SELECT DISTINCT
Name, Address, City, State, Phone
FROM fctable )
But that doesn't seem to be working.
This is the only way my client can get the info to me, and it will be changed probably twice per month, so I'd hate to have to try to manipulate an excel file 24 times a year to import.
Any suggestions Appreciated
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Feb 27, 2008
Hello everyone.
I am new to.Net and here is what I have to do.
I needto update a SQL table with data coming from a XML file. I have seen some Microsoft documentation on this (the nice SQL statement that updates and inserts in the same stored procedure) but I don'tknow what is the best approach for passing my XML file to the stored procedure. The XML contains about 12 000 records, kind of phonebook info (name, email, phone).
What would be the best approach to do this? What objects should I use?
Thanks a million,
Ben
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Oct 18, 1999
Environment
NT Server 4.0 w/ SP4
SQL Server 7.0 w/ SP1
Win98 Client w/ Lotus Approach 9.5
I recently added SQL 7.0 to be a back end for my Approach front end. I transferred all the data from a dbase IV in approach to SQL. Most of the conversions worked ok. I have two big problems.
1) One particular repeat panel in Approach loses the children records of the master record. If I delete some of the records, more will appear. It's as if there is an imaginary limit of the number of records it can read in the repeat panel. I don't have this problem with any other records and children in repeat panels. I called Lotus and they don't have an answer. This is important because the children records need to be summed up so I can have a running total.
2) I original configured the clients to use the TCP/IP Netlib w/ the default port. I couldn't open enough databases so I changed to Multiprotocol. This allowed certain clients to open more databases, but others can't open additional databases. Also, after the change, the NT authentication login has had problems. I had to change to the SQL login to get all my clients back on line. Sometimes the same client can't open more than 10 databases while other times it will open 15. There is no consistent patten to when it can and can't open the additional databases.
If anyone knows how to fix either of these problems, I would greatly appreciate any advice. I'm getting tired of my boss yelling at me.
Thanks.
Keith
akumaboyz@aol.com
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May 12, 2008
I have a select statement where I need to test two values that are returned and perform a different calculation if they return null.
Basically,
if TESTA is null and TESTB is not null
return TESTB
if TESTB is null and TESTA is not null
return TESTA
ELSE if both are not null
TestA + TestB / 2 is value is returned
is this possible to do in a select statement? thanks in advance.
See select statement below:
Select S.StudentDimKey,
(select ISNULL(R.Score, NULL) from CLT_StudentAssessmentRawFact R, CLT_LessonPlanDim L where L.LessonPlanKey = 1 and L.LessonPlanDimKey = R.LessonPlanDimKey and StudentDimKey = S.StudentDimKey) as TESTA,
(select ISNULL(R.Score, NULL) from CLT_StudentAssessmentRawFact R, CLT_LessonPlanDim L where L.LessonPlanKey = 2 and L.LessonPlanDimKey = R.LessonPlanDimKey and StudentDimKey = S.StudentDimKey) as TESTB,
from CLT_StudentPlacementFact P, CLT_StudentDim S, CLT_ClassHierarchyDim H, CLT_StudentClassFact C
where P.StudentDimKey = S.StudentDimKey
and H.ClassHierarchyDimKey = C.ClassHierarchyDimKey
and S.StudentDimKey = C.StudentDimKey
and S.StatusCode = 'A'
and S.CurrentRecord = 1
and S.SchoolID = 87577
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Feb 1, 2007
im practicing set based approaches... and what im trying to do is grab each value from a table , scramble it and put it back in the table... i dont want the solution to this as id rather figure it out myself for practice...
the thing im stuck at is i can do this with a cursor but i want to avoid cursors in future, how would i use a set based approach to get each value of a table and work with it?
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Jul 20, 2005
Hi,I am trying a Set Approach instead of Using of Cursor (which works).I am attaching the SQL to create tables and the my Procedure, and apiece of code to execute the Procedure.I would like the Procedure ReplaceTags to work with 'a' the same aswith 'C'.Thanks in advance.Hareesh/*****************************//* Create Tables */IF EXISTS (SELECT * FROM dbo.sysobjects WHERE ID =OBJECT_ID(N'GlobalTags') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)DROP TABLE GlobalTagsGOCREATE TABLE GlobalTags(Project VARCHAR(50) NULL,TagName VARCHAR(50) NULL,[Value] VARCHAR(50) NULL)GOIF EXISTS (SELECT * FROM dbo.sysobjects WHERE ID =OBJECT_ID(N'ProductDetails') and OBJECTPROPERTY(id, N'IsUserTable') =1)DROP TABLE ProductDetailsGOCREATE TABLE ProductDetails(Project VARCHAR(50) NULL,KeyName VARCHAR(50) NULL,[Value] VARCHAR(50) NULL)GO/*********************************//* Populate Tables */TRUNCATE TABLE GlobalTagsINSERT INTO GlobalTags (Project, TagName, Value)VALUES('ProjectName', 'FirstName', 'John')INSERT INTO GlobalTags (Project, TagName, Value)VALUES('ProjectName', 'LastName', 'Doe')INSERT INTO GlobalTags (Project, TagName, Value)VALUES('ProjectName', 'PhoneNo', '5248')INSERT INTO GlobalTags (Project, TagName, Value)VALUES('ProjectName', 'ZIPCode', '55555')TRUNCATE TABLE ProductDetailsINSERT INTO ProductDetails (Project, KeyName, Value)VALUES('ProjectName', 'FirstName', '%FirstName%')INSERT INTO ProductDetails (Project, KeyName, Value)VALUES('ProjectName', 'LastName', '%LastName%')INSERT INTO ProductDetails (Project, KeyName, Value)VALUES('ProjectName', 'PhoneNo', '%PhoneNo%')INSERT INTO ProductDetails (Project, KeyName, Value)VALUES('ProjectName', 'ZIPCode', '%ZIPCode%')/****************************//* Procedure */IF EXISTS (SELECT * FROM sysobjects WHERE name = 'ReplaceTags')DROP PROCEDURE ReplaceTagsGOCREATE PROCEDURE ReplaceTags(@aProjectName VARCHAR(50),@aProcessType CHAR(1))ASBEGINDECLARE @TagName VARCHAR(50)DECLARE @Value VARCHAR(50)IF @aProcessType = 'C'BEGINDECLARE REPLACE_CURSOR CURSOR FAST_FORWARD READ_ONLY FORSELECT TagName, Value FROM GlobalTagsWHERE Project = @aProjectNameOPEN REPLACE_CURSORFETCH NEXT FROM REPLACE_CURSOR INTO @TagName, @ValueWHILE (@@FETCH_STATUS = 0)BEGINUPDATE ProductDetailsSETValue =CASE WHEN CHARINDEX('%' + @TagName + '%', Value, 1) > 0THENREPLACE(Value, '%' + @TagName + '%', @Value)ELSEValueENDWHERE Project = @aProjectNameFETCH NEXT FROM REPLACE_CURSOR INTO @TagName, @ValueENDCLOSE REPLACE_CURSORDEALLOCATE REPLACE_CURSORENDELSEBEGINUPDATE ProductDetailsSETValue =CASE WHEN CHARINDEX('%' + GlobalTags.TagName + '%',ProductDetails.Value, 1) > 0 THENREPLACE(ProductDetails.Value, '%' +GlobalTags.TagName + '%', GlobalTags.Value)ELSEProductDetails.ValueENDFROM ProductDetails INNER JOIN GlobalTagsON (ProductDetails.Project = GlobalTags.Project)WHERE ProductDetails.Project = @aProjectNameENDEND/***********************************//* Run Procedure */EXECUTE ReplaceTags 'ProjectName', 'a'-- EXECUTE ReplaceTags 'ProjectName', 'C'SELECT * FROM GlobalTagsSELECT * FROM ProductDetails/* End*//***********************************/
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Apr 25, 2008
Lets say I have a dynamic table of 10 to 30 varchar(255) columns that I do not know the names of.
Each of these columns is updated with either an 'OK' or an error msg.
Here's the issue. I have a Status column (varchar(MAX)) which I want to be the concatenated sum of all the other columns. I'd like to do this via a trigger because the way I understand it, theres no way a trigger can skip over another update/trigger and write the wrong 'Status' value.
Example Row 1:
RandomColName1 = "1||Access Denied"
RandomColName2 = "0||OK"
RandomColName3 = "2||ID10T Error at Kbrd"
Status = "[RandomColName1] Access Denied | [RandomColName3] = "ID10T Error at Kbrd"
Example Row 2:
RandomColName1 = "0||OK"
RandomColName2 = "0||OK"
RandomColName3 = "0||OK"
Status = "0||OK"
The rules:
1. There is no chance of someone updating the same column at the same time.
2. There's a good chance that other columns in the same row will be updated at the same time.
3. Sometimes a column can be updated every 5 secs.
4. About 100 to 5000 Rows
I'm a SQL newb and this would be my first trigger to write (lol) but I feel if it could be done without causing a DEADLOCK then it should be done this way. Unless someone with more experience can shed some light
With up to 300 .net clients over fast and slow links, I don't want to xfer the whole 5000 row / 50 column table back to the app and have it weed it out, especially if the client only needs 100 of the rows. On the same token, I don't want to make an individual call back to the SQL server should the client need 4000 rows.
Thanks for the help!
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Aug 13, 2007
Background
I use four database connections strings.
I have about 30 packages that will use one or more of the connection stings.
I store the connection strings in XML configuration files.
I know that I can share configuration files across packages. Should I ?
Have one configuration file with all 4 connection strings? If I use this approach will I get errors in the packages that only use 1 of the connection strings OR
Create four separate configuration files (CnnString1.dtsconfig, CnnString2.dtsconfig, CnnString3.dtsconfig, CnnString4.dtsconfig) and use the appropriate ones for each package
Take another approach
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