T-SQL (SS2K8) :: Add A New Column To Dataset At Runtime That Tallies Whenever Condition Arises
Nov 3, 2014
I am trying to find a way to provide three metrics for a table that only provides 2 of them. I need to derive a third column which tallies based on conditions that can be found in the dataset.
The table I'm querying shows
(1) total referrals
(2) total moves
but it is missing a column that tallies whenever the referral moved into the same property_id that it was referred to.
How can I use sql to create one additional column for the above data set, ie. let's call it 'property_conversion' such that on the fifth row there will be a '1' showing that on 2012-12-30 lead_id 10038655 moved into the property it was referred to back on 2012-10-15 ?
I have an SSIS script task using c#. i need to refere an .xsd dataset in the c# code. i tried to set property below.Build action to Content or Compile Copy to output directory Copy always But still i m unable to use the dataset in my code.
Table A - data example Idno Entity Flag 1 1 y 2 1 n 3 1 y 4 1 y
Table B - data example Idno Entity 1 1 2 1 3 1
Table C - data example Idno Entity 4 1
I want to update the value flag in table A.Update flag from n to y if idno A in table B and and idno A not in table C, so from table A above, first record and 3rd record remain unchange but 2nd record, flag will be changed from n to y. 4th record where idno A not in table b and in Table C so flag will change from y to n. is it possible, or do i need to use the "fetch" method to compare record by record.
I need to build a query that can return only documents where the field "u_DIM4" for the same document have more than one different value..my script are this one just to having an example:
Select docnome [documentname], adoc [docnr], count(*) [countAlldifferentbyDoc], u_dim4 from fn where u_dim4 <> '' and data between '2015-01-01' and '2015-07-31' AND adoc = '02634' Group by docnome,adoc,u_dim4 ORDER BY 2 asc
I am currently in the process of writing an INSERT/UPDATE trigger in SQL 2012, the scenario is, I have a table called Quote, what I want to happen is when a record gets added to the table with a field called Approved, populated with a value or a record gets Updated and the Approved field gets populated I want the trigger to execute a stored procedure, passing through a value from a field called Account within the Quote table as a variable. I know I can achieve the action using one trigger "AFTER INSERT, UPDATE" but I am struggling on forming the rest of the trigger.
I have around 3 tables having around 20 to 30gb of data. My table A related to table B by a FK and same way table B related to table C by FK. I would like to delete all rows satisfying certain condition from table A and all corresponding related records from table B and C. I have created a query to delete the grandchild first, followed by child table and finally parent. I have used inner join in my delete query. As you all know, inner join delete operations, are going to be extremely resource Intensive especially on bigger tables.
What is the best approach to delete all these rows? There are many constraints, triggers on these tables. Also, there might be some FK relations to other tables as well.
I want to change Set clause of Update Statement dynamically based on some condition.
Basically i have 2 Update statments having same FROM clause and same JOIN clause.
Only diff is SET clause and 1 Where condition.
So i am trying to combine 2 Update statements into 1 and trying to avoid visit to same table twice.
Update t Set CASE **WHEN Isnull(td.IsPosted, 0) = 0 THEN t.AODYD = td.ODYD** *ELSE t.DAODYD = td.ODYD* END From #ReportData As t Join @CIR AS tmp On t.RowId = tmp.Max_RowId
Imagine the following scenario: two tables (say, "requests" and "details") are joined in a 1:n relationship on MSSQL 2008. Both tables contain an ID (autoincrement field) and a timestamp field for proper concurrency management. Data access in the frontend is provided by a typed dataset in VS 2010. There are SPs on the server which select, update, insert or delete data in each of the two tables (so, 8 SPs alltogether: uspRequestsSelect, uspDetailsInsert etc.). These SPs are used for data access in the dataset. The GUI is a Windows form with 2 datagridviews, one for request datatable and one for the child-relation-based datatable FK_request_details. So, each request shows its details. The form works well so far.
Now, trouble strikes. A business rule says: "the first details row of a request (=row with lowest ID) always has a 0 in column "additional fee". For additional detail rows, this field has to be set to constant value 45". In short: the first detail row of each request is free, second and later details are charged 45 €.
So, I created a SP "uspRequestFeeManager", which recalculates all (!) detail rows of a request. This SP is called in uspDetailsInsert, uspDetailsUpdate and uspDetailsDelete, as each of this cases causes the additional fee to be recalculated for all rows (as rowcount can change). In Management Studio, this works as well!
But: as the uspRequestFeeManager changes data even for rows the user did NOT touch, there's a concurrency exception in my frontend in the following case:
In a request with 2 detail rows (first row has fee = 0, second = 45), the user deletes the row with fee = 0. Committing via TableAdapterManager calls uspDetailsDelete, which calls uspRequestFeeManager, which sets the remaining single details row to a fee value of 0 (which is correct!). This causes TableAdapterManager.UpdateAll to fail ("concurrency exception; delete command has handled 0 of 1 expected records"), as uspRequestFeeManager has "edited" a row which the user didn't touch, and thus updated its timestamp as well. So, the list is out of sync.
The uspRequestFeeManager looked like a good idea... but it seems not to be.
Approach would be: instead of calling the uspRequestFeeManager from within the SP, call it programmatically after TableAfterManager.UpdateAll, and after that, 're-fill' the details datatable with the updated data. But that would transfer business logic from server to client. I don't like that...
Hello all,I m trying to add a column in my database (it is a csv file)but it is giving me following exception.------exception------------{System.Data.OleDb.OleDbException}ErrorCode: -2147467259Errors: {System.Data.OleDb.OleDbErrorCollection}HelpLink: NothingInnerException: NothingMessage: "Operation not supported on a table that contains data."Source: "Microsoft JET Database Engine"StackTrace: " atSystem.Data.OleDb.OleDbCommand.ExecuteCommandTextE rrorHandling(Int32 hr)atSystem.Data.OleDb.OleDbCommand.ExecuteCommandTextF orSingleResult(tagDBPARAMSdbParams, Object& executeResult)at System.Data.OleDb.OleDbCommand.ExecuteCommandText( Object& executeResult)at System.Data.OleDb.OleDbCommand.ExecuteCommand(Comm andBehavior behavior,Object& executeResult)at System.Data.OleDb.OleDbCommand.ExecuteReaderIntern al(CommandBehaviorbehavior, String method)at System.Data.OleDb.OleDbCommand.ExecuteNonQuery()Here is my code for this.--------Code--------------Dim ConnectString As String = "Provider=Microsoft.Jet.OLEDB.4.0;DataSource=c:;Extended Properties=""text;HDR=Yes;FMT=Delimited"""Dim myCon As New OleDbConnection(ConnectString)TrymyCon.Open()'Debug.WriteLine("Connection Opened")Dim cmd As New OleDbCommandcmd.CommandText = "ALTER TABLE [sample.csv] ADD mycol VARCHAR(50) NULL"cmd.Connection = myConcmd.ExecuteNonQuery()Catch ex As OleDbExceptiondebug.WriteLine(ex.Message)FinallymyCon.Close()End TryAny known reasons and workarounds????Thanks & Regards.
I am have this problem, that would not go away, can some please help me. I want to rename or delete column that is bound to a tableadapter using SQL Express at runtime. is it possibleI have no idea on what to do.
Dear All,I'm facing a problem with creating a view.I have a table withfollowing descriptionTab1------------------------------------Col1 col2---- -----Val1 TomVal2 CatVal3 JackVal4 JimNow I'm trying to create a view with following information fromTab1.The output should beTab1View--------------------------------------Col1 Col2 Col3---- ---- -----1 Val1 Tom2 Val2 Cat3 Val3 Jack4 Val4 Jim---------------------------------------So the create view statement add this column dynamically in thisresult set.If any body has any doubt on this query please let me inform.RegardsArijit Chatterjee
im working on a report which shows the data based on the users input. I have used a matrix because I have no control on how many fields the users want, so practically we have a dynamic column here. My problem is that they require me to able the user to hide the columns he/she wishes to during runtime. We have a previous report that enables the user to hide it during runtime but it has static column. Any idea on how I could do it?... Thank you so much...
i am having a doubt. The problem i am facing is tht i have a table in which one column is a condition column and other column is action column. Now how can i give a condition such that if the condition is true the action must be fired. This is like a if statement ...where if the condition is true the corresponding action in the table has to be fired
Hi -- I am fairly new to SSIS development, although I am starting to appreciate it more an more, especially since I have started getting into extending the object model. Here's my question:
I have a data flow that pulls data from any number of different delimited files with different numbers of columns. I have had no problem dealing with setting up run-time file locations and file names by using the expressions of a flat file data source, and i have been able to pretty easily deal with varying file delimiters by standardizing the files before they get into the data flow. however, I have not been able to come up with a solution that will allow my data source to discover its column info at run time, and then pass that information on to the data flow task. all i really care about is being able to properly parse the individual rows into individual column data by the flat file data source because the data flow itself is able to discover the actual data that the columns hold at run-time.
i would very much appreciate any feedback from anyone on possible solutions for this.
I have a column with serial numbers 1, 2,3,4,....etc...I want to have P1 for first 4 serial numbers to be displayed in a separate column beside Serial number column and for the next four serial numbers (5,6,7,8) it should be P2 and like that I want till P13 and for next again it should start with P1(I mean after P13 it should give again P1 instead of P14) and continue the same process.
Column name of Serial number is [S.No] table name for example is #temp1
/****** Object: StoredProcedure [dbo].[dbo.ServiceLog] Script Date: 07/18/2014 14:30:59 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER proc [dbo].[ServiceLogPurge]
-- Purge records dbo.ServiceLog older than 3 months: -- Purge records in small portions to avoid locking production tables -- for a long time. The process takes longer, but can co-exist with -- normal usage of the tables.
[Code] ...
*** Getting this error below when executing the code ***
Msg 102, Level 15, State 1, Procedure ServiceLogPurge, Line 45 Incorrect syntax near 'Failed:'.
when i tried to run a DTS which transfer bulk data between 2 SQL servers, i got following error message: ================================================== ============ Error: -2147467259 (80004005); Provider Error: 4815 (12CF) Error string: Received invalid column length from bcp client. Error source: Microsoft OLE DB Provider for SQL Server Help file: Help context: 0 ================================================== ===========
if anybody has encounter the same problem before? after testing, i think it's must related with network traffic problem. but i can not figure out how to solve it.
I have a table called names (firstname, lastname, number) then i have a DECLARED variable called @displaynum...If @displaynum id true my select query should select the number column. if the variable is false , only the first two columns are selected.
I've found that there is no such thing as a Case Statement in the Derived Column task in the data flow objects. I've written a ternary statement instead. I can't seem to get it to work exactly how I want it to. For example
The CreditAmount and DebitAmount Fields are spelled correctly, the field type of AccountCategory is String and the Field type of CreditAmount and DebitAmount is numeric, but that seems to be the same situation that I have in the first example that works. Am I missing something? I'd appreciate any advice anyone has to offer. Thanks,
We have a database where many tables have a field that has to be lengthened. In some cases this is a primary key or part of a primary key. The table in question is:-
/****** Object: Table [dbo].[DTb_HWSQueueMonthEnd] Script Date: 09/25/2014 14:05:09 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [dbo].[DTb_HWSQueueMonthEnd](
[Code] ....
The script I am using is
DECLARE@Column varchar(100)--The name of the column to change DECLARE@size varchar(5)--The new size of the column DECLARE @TSQL varchar(255)--Contains the code to be executed DECLARE @Object varchar(50)--Holds the name of the table DECLARE @dropc varchar(255)-- Drop constraint script
[Code] ....
When I the the script I get the error message Could not create constraint. See previous errors.
Looking at the strings I build
ALTER TABLE [dbo].[DTb_HWSQueueMonthEnd] DROP CONSTRAINT PK_DTb_HWSQueueMonthEnd ALTER TABLE [dbo].[DTb_HWSQueueMonthEnd] Alter Column [Patient System Number] varchar(10) ALTER TABLE [dbo].[DTb_HWSQueueMonthEnd] ADD CONSTRAINT PK_DTb_HWSQueueMonthEnd PRIMARY KEY NONCLUSTERED ([Patient System Number] ASC,[Episode Number] ASC,[CensusDate] ASC) WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
They all seem fine except the last one which returns the error
Msg 8111, Level 16, State 1, Line 1 Cannot define PRIMARY KEY constraint on nullable column in table 'DTb_HWSQueueMonthEnd'. Msg 1750, Level 16, State 0, Line 1 Could not create constraint. See previous errors.
None of the fields I try to create the key on are nullable.
i have the folowing databases DB1,DB2,DB3,D4,DB5........
i have to loop through each of the databases and find out if the database has a table with the name 'Documents'( like 'tbdocuments' or 'tbemplyeedocuments' and so on......)
If the tablename having the word 'Documents' is found in that database i have to add a column named 'IsValid varchar(100)' against that table in that database and there can be more than 1 'Documents' table in a database.
My requirement is to alter themaster table schema i.e to add a column with the name as of the table name i.e Cat3 and will lok lie as foolows Table Master {
I am trying to add a where condition on an ID column(type - INT) with values coming from a variable (type - STRING). i am using cast to cast the ID as Varchar and then apply the condition, but i am not getting any results back. following is an example of what i am trying to do.using temp table in the example , so you can copy the t-sql and run as is.
Hello all. I hope someone can offer me some help. I'm trying to construct a SQL statement that will be run on a Dataset that I have. The trick is that there are many conditions that can apply. I'll describe my situation:
I have about 1700 records in a datatable titled "AISC_Shapes_Table" with 49 columns. What I would like to do is allow the user of my VB application to 'create' a custom query (i.e. advanced search). For now, I'll just discuss two columns; The Section Label titled "AISC_MANUAL_LABEL" and the Weight column "W". The data appears in the following manner:
(AISC_Shapes_Table)
AISC_MANUAL_LABEL W W44x300 300 W42x200 200 (and so on) WT22x150 150 WT21x100 100
(and so on) MT12.5x12.4 12.4 MT12x10 10 (etc.)
I have a listbox which users can select MULTIPLE "Manual Labels" or shapes. They then select a property (W for weight, in this case) and a limitation (greater than a value, less than a value, or between two values). From all this, I create a custom Query string or filter to apply to my BindingSource.Filter method. However I have to use the % wildcard to deal with exceptions. If the user only wants W shapes, I use "...LIKE 'W%'" and "...NOT LIKE 'WT%" to be sure to select ONLY W shapes and no WT's. The problems arises, however, when the user wants multiple shapes in general. If I want to select all the "AISC_MANUAL_LABEL" values with W <= 40, I can't do it. An example of a statement I tried to use to select WT% Labels and MT% labels with weight (W)<=100 is:
Code SnippetSELECT AISC_MANUAL_LABEL, W FROM AISC_Shape_Table WHERE (W <= 100) AND ((AISC_MANUAL_LABEL LIKE 'MT%') AND (AISC_MANUAL_LABEL LIKE 'WT%'))
It returns a NULL value to me, which i know is NOT because no such values exist. So, I further investigated and tried to use a subquery seeing if IN, ANY, or ALL would work, but to no avail. Can anyone offer up any suggestions? I know that if I can get an example of ONE of them to work, then I'll easily be able to apply it to all of my cases. Otherwise, am I just going about this the hard way or is it even possible? Please, ANY suggestions will help. Thank you in advance.
I have a script that loops through a series of tables to send data to a table from each of the tables. My issue is that not all tables have the columns I need in them. What I would like is to replace the column with another column when it does not exist. Something like below
Select Misisng_Column(A.Name, replace with B.Name) as Name FROM SomeTable A Cross Join (Select Name FROM AnotherTable) B
AnotherTable has one record in it. To avoid a Cartesian issue. Like I said just an example
In my real script the table aliased as A is from a list of tables in a sys.tables query that loops through to the end.
