How To Add A New Column To A Dataset
Aug 21, 2007
I have had to add a new column to a mobile 5 database in VS2005. I obviously have added it in the wrong way. I have two applications that use the same db. The .net application accesses the table with the new column fine., this is where I added it first. When I try to add the column to the Compact framework (Pocket Pc) app I get this error when I try to run the application. In both applications the Server explorer shows the new column.
The column name is not valid. [ Node name (if any) = ,Column name = GUID ]
As long as I remove the GUID column from the tableadapter.fill sql the program runs the same as before.( even though the sql executes in the query designer with the GUID column in the sql statement.)
How do I add the column so that the Dataset.designer.cs gets updated and can load the new column?
Thanks I hope this make sense.
Jon Stroh
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Apr 28, 2008
I need to create the following table in reporting services
PRODUCT April March Feb
2008 2007 2008 2007 2008 2007
chair 8 9 7 4 4 4
table 3 4 5 6 4 6
My problem is the month names are a column in the dataset, but I dont know how to get it to fill as column headers???
Thanks in advance!!!
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Nov 7, 2006
Hi thereI have the following two tablesmainprofile (profile varchar(20), description)accprofile (profile varchar(20), acct_type int)Sample data could bemainprofile----------------prof1 | profile oneprof2 | profile twoprof3 | profile threeaccprofile--------------prof1 | 0prof1 | 1prof1 | 2prof2 | 0Now doing a join between these two tables would return multiple rows,but I would like to know whether it would be possible to returnacct_type horizontally in a column of the result set, e.g.prof1 | profile one | [0,1,2]prof2 | profile two | [0]I could probably manage this with cursors, but it would be veryresource intensive. Is there a better way?Regards,Louis
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Sep 8, 2006
Hi,
i'm working on a Data Flow which uses a "Flat Sile Source" to read a CSV-file and then sends the transformed data to a "OLE DB Destination".
What i need is a way to add a column to my transformed data which contains a value from a User-Variable.
My User-Variable contains the key for the data, and this one value shall replicate to all Rows in the DataSet.
So anybody know of an existing Data Flow component, which can do this?
Regards, Martin
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Aug 8, 2006
Hi all,
I'm trying to update various rows in my DB with a new value once an action occurs. I am using the following code which does not throw any exceptions, but also does not change the values. Can someone steer me in the right direction?
public static void ChangeRefCode()
{
SqlConnection dbConn = new SqlConnection(ConnectDB.getConnectString());
SqlDataAdapter dataAdapt = new SqlDataAdapter("Select * from Posting",dbConn);
DataSet ds = new DataSet();
SqlCommandBuilder sqBuilder = new SqlCommandBuilder(dataAdapt);
dataAdapt.Fill(ds, "Posting");
foreach (DataRow dr in ds.Tables["Posting"].Rows)
{
dr["ref_code"] = DateTime.Today.Ticks + "-" + dr["poster"].ToString();
}
try
{
dataAdapt.Update(ds, "Posting");
}
catch (Exception ex)
{
ex.ToString();
}
finally
{
dbConn.Close();
}
}
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Nov 21, 2006
I have a web page that has been in production for over a year. On occasion the web app users report sporadic errors which last a few minutes then go away. The page loads up a generic DataSet, and then that DataSet is assigned to a datagrid on the page. The error is that a column that is expected to be in the dataset is not found. I know this column must exist in the database because its a required field. After we reset IIS, then all returns to normal and the errors go away. Below is the stack trace.
Exception: System.IndexOutOfRangeException Message: Cannot find column LastName. Source: System.Data at System.Data.DataTable.ParseSortString(String sortString) at System.Data.DataView.UpdateIndex(Boolean force) at System.Data.DataView.SetIndex(String newSort, DataViewRowState newRowStates, DataFilter newRowFilter) at System.Data.DataView..ctor(DataTable table, String RowFilter, String Sort, DataViewRowState RowState) at MySystem.Web.GuestSearch.ShowResults(DataSet ds, Int32 currentPageIndex) at MySystem.Web.GuestSearch.LoadResults(Int32 currentPageIndex) at MySystem.GuestSearch.btnSearch_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain()
Our DBA can find no problems on the database side and our web servers don't log any system event problems either. I do not understand why resetting IIS helps the issue. I need to find the real cause of the problems rather than just resetting IIS all the time. Any ideas?
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Nov 4, 2006
Hello,
I'm having trouble extracting the datetime value of a datacolumn in order to compare it's value to another datetime. The error I get is "unable to cast object of type System.Data.DataColumn to type System.DateTime. I'm sure I'm just missing a step or a cast, but nothing has worked. I hope someone can help!
Here's the code:
protected void ddlRooms_SelectedIndexChanged(object sender, EventArgs e)
{
SqlCommand cmd;
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["EventBookingConnectionString"].ConnectionString);
SqlDataAdapter da;
DataSet ds;
try
{
cmd = conn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "SELECT Events.ID as 'Event ID', Name as 'Event Name', Rooms.Room as 'Event Room', AttendeeList as 'Attendee List', EventDate as 'Event Date' from Events INNER JOIN Rooms on Events.Room=Rooms.ID";
ds = new DataSet();
da = new SqlDataAdapter();
da.SelectCommand = cmd;
da.Fill(ds, "BookedRooms");
if (ds.Tables["BookedRooms"].Columns["Event Room"] != null)
{
foreach (DataRow row in ds.Tables[0].Rows)
{
string room = (string)row["Event Room"];
if (ddlRooms.SelectedItem.ToString() == room)
{
System.DateTime date = (System.DateTime)ds.Tables[0].Columns["Event Date"]; //HERE'S WHERE THE ERROR OCCURS
if (Calendar1.SelectedDate == date)
{
lblBookedRooms.Visible = true;
lblBookedRooms.Text = "I'm sorry, that room is booked for that day.<br />Please choose another day or a different room.";
}
}
}
}
}
catch (Exception ex)
{
lblResults.Text = ex.Message;
}
}
Thanks in advance to anyone willing to help out!
Monster
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Jul 13, 2005
I have a form that loads a dataset. This dataset is composed from SQL statements using alias and unions. Basically it takes uses data from 3 tables. This dataset also has a alias column called ClientName that consists of either people's name or business name.In addition, the form also consist of a search field that allows user to enter the 'ClientName' to be searched (i.e. to search the alias column). So, my question is how can the alias column be searched (user can also enter % in the search field)Function QueryByService(ByVal searchClientNameText As String) As System.Data.DataSet
If InStr(Trim(searchClientNameText), "%")>0 Then searchStatement = "WHERE ClientName LIKE '" & searchClientNameText & "'"Else searchStatement = "WHERE ClientName = @searchClientNameText"End If
Dim queryString As String = "SELECT RTrim([People].[Given_Name])"& _"+ ' ' + RTrim([People].[Family_Name]) AS ClientName, [Event].[NumEvents],"& _"[Event].[Event_Ref]"& _"FROM [Event] INNER JOIN [People] ON [Event].[APP_Person_ID] = [People].[APP_Person_ID]"& _searchStatement + " "& _"UNION SELECT [Bus].[Organisation_Name],"& _"[Event].[NumEvents], [Event].[Event_Ref]"& _"FROM [Bus] INNER JOIN [Event] ON [Bus].[APP_Organisation_ID] = [Event].[APP_Organisation_ID] "& _searchStatement
..........End Function
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Apr 17, 2007
I am trying to eliminate the extra space in columns that have been returned from a DB query...the tables have character lengths of 40, I would like to return just the necessary characters.
Thanks in advance.
Mark.
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Feb 6, 2007
Do I have to use condition split?, then union all?
if in script, I can use update from <tablename> Set column = isnull(column, 'NA'). It's so simple.
I'm also wondering can we run SQL Script against input dataset in a SSIS component?
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Feb 5, 2007
I'm bothered by an issue of updating a column in input dataset from a update query. It looks like SSIS has a very poor function on this.
Example, I have an input dataset of name, salary, dept_no, and I have another table called departments which has fields of dept_no, Dept_name, basic_salary
now I want to update salary column in input dataset with basic_salary if it's salary is smaller than the basic_salary.
update #tmp set salary = basic_salary where #tmp.salary <departments.basic_salary and #tmp.dept_no = departments.dept_no
how could I impletement this in SSIS package?
I tried with lookup, modify scripts by enabling memory restriction. It doesn't say any error when I save the package, but I never get pass debug.
HELP!!
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Mar 14, 2006
Hi,
I am mapping an entity from SQL 2005 to another entity in another system on SQL 2000. Since the destination system has its own ID generator, I want to keep the generated ID for each row of my table in a column of my table in SQL 2005. The new column is in the dataset now , but I don't know how to update my table to have that column values (The OleDbDestination just insert new items.)
Samy
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Nov 9, 2006
hi,
i am having 2 columns in a table in a dataset.
i want to add those two columns and bind the resultant total as a single column to the datagrid.
is it possible.
if yes, how o acheive this?
please help me.
thanks in advance.
muppidi.
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Apr 18, 2008
Hi.
In my report, I need to display column names (and its values) from my dataset, which uses the stored procedure and within it use the PIVOT statement. I cannot use the matrix control in report since I need to add another static column to the right of the matrix, but since that cannot be done ni SQL SSRS 2005, I need to PIVOT it through stored procedure. The parameter passed to stored procedure is the year and it is used for pivot. The statement looks like this:
@sql = 'SELECT * FROM (SELECT YearId, SchoolId, ReportText, OutputValue_Text from AggregateTable) AS AGAM
PIVOT (MIN(OutputValue_Text) FOR YearId IN ([' + @YearId + '])) PVT'
EXEC(@sql)
So, since the years passed as parameters can change, I cannot hard-code it as column in my report, so I need to programatically display column names and values from my dataset, something like dataSet.Tables[0].Columns[].ColumnName; I have tried with writing the code, but I do not have much experience with it and I have not been very successful. Can someone help me with the code?
Thanks
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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.
create table dimFacts
(date_value datetime
, month_name varchar(9)
, year_number varchar(4)
, month_number tinyint
[Code] ....
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 ?
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Jun 19, 2007
Hello,
I have created SSIS package programmatically, I want to add Lookup transformation,
How can I add column from reference dataset to the transformation?
I have try to add new output column but it gives me an validation error, I write following coed to add new output column to lookup.
IDTSOutputColumn90 outputColumn = this.lookup.OutputCollection[0].OutputColumnCollection.New();
outputColumn.Name = col.Name;
outputColumn.Description = "Staging table output";
outputColumn.TruncationRowDisposition = DTSRowDisposition.RD_FailComponent;
outputColumn.ErrorOrTruncationOperation = "Copy Column";
outputColumn.SetDataTypeProperties(col.DataType, col.Length, col.Precision, col.Scale, col.CodePage);
Please suggest other way to add column from reference dataset to transformation output.
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Aug 17, 2015
I have a transformation where final result set give me 25 rows of data. Now before I put into destination table, I need to add another column which will show how many total records we have. Like.
My dataset:
A 20 abc
B 24 mnp
c 44 apq
Now I need to add another column within my transformation before I store the result set to destination like this:
A 20 abc 3
b 24 mnp 3
c 44 apq 3
Here. new column gives count of total rows in our dataset which was 3.
How can I achieve this? Can I use derive column to this?
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Mar 29, 2007
suppose i have aDataset with 11 rows. field1 with 5 rows of aaa, 6 rows of "bbb"
I want's some thing like
field1 rowcount
aaa 5
bbb 6
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May 26, 2015
I have a report with multiple datasets, the first of which pulls in data based on user entered parameters (sales date range and property use codes). Dataset1 pulls property id's and other sales data from a table (2014_COST) based on the user's parameters. I have set up another table (AUDITS) that I would like to use in dataset6. This table has 3 columns (Property ID's, Sales Price and Sales Date). I would like for dataset6 to pull the Property ID's that are NOT contained in the results from dataset1. In other words, I'd like the results of dataset6 to show me the property id's that are contained in the AUDITS table but which are not being pulled into dataset1. Both tables are in the same database.
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Oct 1, 2015
I have a small number of rows in a dataset, Table 1. There is a CLOB on a large dataset, Table 2. They join on a PK. I would like to retrieve this CLOB and add it to the data flow for Table1. In short I want to emulate the following:
Table 1: Small table without CLOB, 10 rows.
Table 2: Large table with CLOB, 10,000,000 rows
select CLOB
from table2
where pk = (select pk from table1)
I want this to return the CLOBs for the small number of rows in Table 1. The PK is indexed obviously so it should be a fast look up.
Table 1 and Table 2 live on different Oracle databases. How do I perform this operation efficiently in SSIS? It seems the Lookup and Merge Join wont do this.
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May 27, 2015
I have a report with multiple datasets, the first of which pulls in data based on user entered parameters (sales date range and property use codes). Dataset1 pulls property id's and other sales data from a table (2014_COST) based on the user's parameters.
I have set up another table (AUDITS) that I would like to use in dataset6. This table has 3 columns (Property ID's, Sales Price and Sales Date). I would like for dataset6 to pull the Property ID's that are NOT contained in the results from dataset1. In other words, I'd like the results of dataset6 to show me the property id's that are contained in the AUDITS table but which are not being pulled into dataset1. Both tables are in the same database.
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May 21, 2007
I found out the data I need for my SQL Report is already defined in a dynamic dataset on another web service. Is there a way to use web services to call another web service to get the dataset I need to generate a report? Examples would help if you have any, thanks for looking
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Oct 12, 2007
Is there any way to display this information in the report?
Thanks
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May 7, 2008
Hi,
I have a stored procedure attached below. It returns 2 rows in the SQL Management studio when I execute MyStorProc 0,28. But in my program which uses ADOHelper, it returns a dataset with tables.count=0.
if I comment out the line --If @Status = 0 then it returns the rows. Obviously it does not stop in
if @Status=0 even if I pass @status=0. What am I doing wrong?
Any help is appreciated.
ALTER PROCEDURE [dbo].[MyStorProc]
(
@Status smallint,
@RowCount int = NULL,
@FacilityId numeric(10,0) = NULL,
@QueueID numeric (10,0)= NULL,
@VendorId numeric(10, 0) = NULL
)
AS
SET NOCOUNT ON
SET CONCAT_NULL_YIELDS_NULL OFF
If @Status = 0
BEGIN
SELECT ......
END
If @Status = 1
BEGIN
SELECT......
END
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Apr 11, 2008
i have two datasets.one dataset have old data from some other database.second dataset have original data from sql server 2005 database.both database have same field having id as a primary key.i want to transfer all the data from first dataset to new dataset retaining the previous data but if old dataset have the same id(primary key) as in the new one then that row will not transfer.
but if the id(primary key) have changed values then the fields updated with that data.how can i do that.
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Dec 19, 2006
Hi,
I have two datasets in my report, D1 and D2.
D1 is a list of classes with classid and title
D2 is a list of data. each row in D2 has a classid. D2 may or may not have all the classids in D1. all classids in D2 must be in D1.
I want to show fields in D2 and group the data with classids in D1 and show every group as a seperate table. If no data in D2 is available for a classid, It shows a empty table.
Is there any way to do this in RS2005?
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Sep 3, 2015
Using this IIF statement:
=CountDistinct(IIF(Fields!Released_DT.Value = Fields!Date2.Value, Fields!Name.Value,
Nothing))
Released_DT = a date - 09/03/2015 or 09/02/2015
Date2 = returns another date value in this case 09/03/2015
What I'm trying to do is: count distinct number of people (Fields!Name.Value) if the Relased_DT = Date2.My IIF statement is returning a zero value.
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Apr 5, 2007
Hi every body...
I have a probleme
I have a web Services which contains a method getValue(IDEq (int), idIndicator(int), startTime(dateTime), endTime(dateTime))
I need to call this method. But my problem is how pass parameter ?
I see the tab Param but it isn't work as I wait,... maybe I do a mistake...
I want that statTime and endTime are select by the user via a calendar for example...
now idIndicator and idEq was result of an other dataSet from a xml datasource...
But I don't how integrate dynamically... I try to enter a parameter via the param tab, and create and expression :
=First(Fields!idEq.Value, "EquipmentDataSet")
but when i execute the query, the promter display <NULL>...
So I don't know how to do and if it is possible !
I hope someone can help me !
Thank you !
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Dec 3, 2007
Hi experts,
I'm not sure my design is normal or not. Please give me some advice.
I've a dataset and query by a field name 'companyid'.
select * from companyid where companyid = @icompany which @icompany is a input field.
if user select all, i'll send 0 to @icompany then I need to select all records.
question 1. How can I get all records? (i think about this query select * from companyid <> 0)
if user select for example companyid = 1, i'll send 1 to @icompany and the query work fine.
question 2. How can I change the query to adopt this 2 condition?
Thanks a lot,
Jeff
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Jul 28, 2015
I have a excel file which has a column called "Code" and their values are A,B,C,D,E,F,G,H. I want to create a new column called "status" based on the values of "Code".
Code:
A
B
C
D
E
F
G
H
If A,C,E,G then "status" = "Active" else if B,D,F,H then "Status" = "Inactive". I like to do it using "Derived Column".
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Aug 3, 2015
How can I calculate a DateTime column by merging values from a Date column and only the time part of a DateTime column?
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Oct 16, 2006
Hi all,
The requirement is to have a table say 'child_table', with an Identity column to refer another column from a table say 'Parent_table'..
i cannot implement this constraint, it throws the error when i execute the below Alter query,
ALTER TABLE child_table ADD CONSTRAINT fk_1_ct FOREIGN KEY (child_id)
REFERENCES parent_table (parent_id) ON DELETE CASCADE
the error thrown is :
Failed to execute alter table query: 'ALTER TABLE child_table ADD CONSTRAINT
fk_1_ct FOREIGN KEY (child_id) REFERENCES parent_table (parent_id) ON DELETE
CASCADE '. Message: java.sql.SQLException: Cascading foreign key 'fk_1_ct' cannot be
created where the referencing column 'child_table.child_id' is an identity column.
any workarounds for this ?
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Feb 22, 2007
I am faced with a common situation but there is a little twist that makes it unique and has me stumped. Hopefully someone can point me to a solution or give me enough guidance to figure it out.
Here is the situation, I am loading an XML file into a Dataset and need to update SQL tables from that Dataset but the tables are slightly different than in the DataSet. I am using C#, asp.net 2.0, visual studio 2005 and sql server 2005.
When I loaded the XML into the Dataset, the Dataset contained 19 tables. I individually loaded each table from the Dataset and determined from that which tables I needed and didn't need as well as determinined which fields I needed or not. I used this information to create my SQL tables.
Briefly, when creating the SQL tables, I used the dataset table name as the SQL table name and used the same column names as well. the only difference from the Dataset tables and SQL tables is 1 column has a different name (or to be more specific, a column exists in the datset that does not exist in the sql table and a column exists in the SQL table that does not exist in the dataset table). Also, some tables in the dataset do not exist in the sql Database.
I know that I can spin through each row of the tables I need in the Dataset and create an insert command from the row data and insert that into the SQL table but I have 11 tables to do that with. I would like to take advantage of ADO.NET and push the datset information into sql data but I am confused on how to do this.
I am confused because not all tables in the dataset are represented in the sql database and though the tablenames and most of the columns have the same name, it is not an exact fit.
Can anyone point me to a solution or give me a good game plan that I can search on to help me load my dataset info to a sql DB.
I appreciate any help I can get.
Thanks.
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