How To Update A Dimension Column With The Pipeline Tasks
I have been working with DTS and ETL in data warehousing projects for several years and my question is this. You can only update a dimension column with SSIS by using TSQL-update statements.
There is no way to do this except issuing TSQL from the control flow or the data flow?
This subject is not mentioned in Wrox SSIS book nore in Kirk Haseldens book.
When you run the SCD task in the data flow you will get an OLEDB command that actually do this, issue a TSQL-statement.
Is this correct?
Regards
Thomas Ivarsson
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The problem is with @NUMERY parameterin code behind i setDim dr As GridViewRowDim numery As Stringnumery = "" For Each dr In GridView1.RowsDim numeros As Label = dr.Cells(0).Controls(1)numery += numeros.Text & ", "Next numery = numery.TrimEnd(", ") SqlDataSource1.UpdateParameters("NUMERY").DefaultValue = numery'so numery will look like this 123, 65465, 54616, 56465Update command looks like this :UpdateCommand="UPDATE slon SET mrowka = @MROWKA WHERE (NUMER IN (@NUMERY))" <UpdateParameters><asp:Parameter Name="MROWKA" /><asp:Parameter Name="NUMERY" /></UpdateParameters> And because of @numery i have err: Error converting data type nvarchar to numeric. how should i post "123, 65465, 54616, 56465" as parameter for this query ?
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UPDATE On A Column With A Set Default
If we have a column with a default value set, say GETDATE( ), how can weassure that value is reset on an UPDATE (not an INSERT) without changingthe client code that does the updating?I'd rather stay away from triggers, etc if possible.Thanks,Mike Husler
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Column Update Function
This is probably a common problem with a standard design pattern, butI'm having trouble finding the solution.I have a table with a lot of columns, for this example I'll just usethree but in reality its more like 20.Create Table myTable (int col_one primary key, int col_two,varchar(20) col_three) etc...I want to write a sproc that allows updating of this column. Say Ihave a sproccreate sproc myUpdate int @col_one, int @col_two, varchar(20)col_threeasupdate myTable col_two = @col_two, col_three = @col_threewhere col_one = @col_onethen if I only want to update col_two I have to pass in the currentvalue of col_three so that it remains the same, which seems prettyinefficient. so I could change it to:asupdate myTable col_two = coalasce(@col_two, col_two), col_three = coalasce(@col_three, col_three)where col_one = @col_oneand then if I wanted to leave col_three the way it is then I couldjust doexec myUpdate 1, 2, NULLthe only problem here is that what if the value of col_three iscurrently 3, and I want to set it to NULL? Under the current method,setting someting to NULL is impossiblefinally, I'd like to use parameter naming in my exec calls. that wayI can just say someting likeexec myUpdate 1, col_three=3this would update col_three to 3 and leave the rest of the fieldsuntouched. you can see how handy this would be if you just want tochange a few of the fields in a table with a large number of columns.I'm sure this has been done before, can somebody point me in the rightdirection?Thanks,Ben
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Update Part Of A Column Only
Newbie here. How would I do the following update? I have over 100,000 rows and want to knock the first two characters off one of the columns in each row. i.e. currently have pcdocsvariousvarious and want this to read docsvariousvarious I just need to remove the first two characters "pc".
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