Overwriting cells with external data table - excel

I have a complex workbook full of formulas linking back to a set of tabs at the beginning which contain the source data.
Currently that data is stored as a static set of data. I want to replace it with a dynamic external connection. Problem is, when I load up the table it "helpfully" shunts the existing static data to the side, and all the formulas in the workbook "helpfully" update to reflect that- so they point to the old data in the new cells, not my new table!
Is there any way to either
A) overwrite the cells rather than inserting extra extra columns
B) Long shot- temporarily Excel updating formulas?
I think that this question is similar to mine, but has no useful advice for my situation - I don't want to and probably can't manually update every formula range.
Thanks.

After some experimenting it turns out the inserting of extra columns only takes place if data is present in the cells you are going to overwrite.
So deleting the data (NOT the cells) and then loading the query to the now clean area will work fine- formulae in the rest of the workbook will continue to link to the table.

Related

Editing data through a filter in Excel

I have a large imported .csv as a (Query) table in an Excel workbook. I'd like for users of the workbook to be able to select a small subset of that data and update some values without having to play around with filters on the table.
To that end, I've set up a FILTER on a separate sheet, something like:
=FILTER(my_table[some_column], my_table[id_column]="some value")
That pulls in values from the relevant column and displays them.
My question: is there any way to allow users to edit the values retrieved with the FILTER, so that the changes are reflected in the original table? Attempting to edit such a value now just edits the underlying field, causing the FILTER to update and display #SPILL! (which makes sense, since there is not enough free space to render the result).
I've looked at options for FILTER, and thought about writing some custom VBA code to do what FILTER does "manually", and then watch the sheet for updates in that range - but that seems like a lot of coding to do something I would imagine is more commonly needed?
Am I going to have to code this up in VBA? Or is there some alternative approach to using the FILTER?

Excel 2010 check cells in a row contain data before the Selection Change fires

I have an Excel 2010 data table which is driven by a query from MSSQL. The underlying query changes depending upon what options the user selects in the Excel workbook. I'm okay with changing the query and pulling the data.
After the data has been selected multiple users will be able to edit and append data to the Excel table and these changes will post back to the SQL database table. Due to the database table structure some of these cells within a given row are mandatory before any data can be inserted into MSSQL and/or potentially updated.
So what I'm trying to achieve is checks on whether certain columns in a row are blank after a cell is edited (I can do this via Worksheet Change) and also before they move off that row so I can bring up a message if all mandatory columns haven't been entered. I can't see any events that fire before Selection Change. My only thoughts on a workaround is to have a global variable row marker that is updated on Selection Change, i.e. it will store the previous row number. I can't use Excel's standard data validation functionality looking at blank cells because although this is fine for a currently correctly populated row that is being edited, inserting new rows or appending directly to the bottom of the table will constantly error as all those mandatory columns will, of course, be blank. Currently I am using conditional formatting to at least highlight columns/cells that require input although this doesn't force users to actually do it. Data cannot be stored within MSSQL until these columns contain data so if they don't fill them in and refresh the table for whatever reason, whatever they have entered will be lost. Obviously this is bad, m'kay. I am concerned about both the Worksheet Change and Selection Change events constantly firing and how that will affect workbook performance.
Any suggestions would be appreciated. Maybe I'm going about this all wrong so any ideas to make this more efficient would also be well received. The user base do not want to see UserForms or MS Access even though it would make this activity very easy. They are too used to the look and feel of Excel sheets.
your best way is to copy the table into 2d array or some other data structure in memory such as dictionary or collection. and than manage each change in memory. this one is very efficient but requires a lot of code. with excel the only problem you have is the key the rest is vlookup and true false questions. vlookup will find the original value and then you have current data + previous data + the logic... is the new data ok?

Two Excel tables created from SQL queries collide in formula auto-fill

I have an Excel 2010 workbook with two SQL queries each returning data to a separate worksheet as a named table. They return the same db fields, but one is constrained on the values of one of the fields. I have additional columns using formulas to transform these field data, and these are also identical between worksheets.
Upon refresh, Excel autofills the formulae per the conventions of a named table. One of the sheets/tables--call it Table 1-- autofills with native references (e.g., for a field/column named variable, the corresponding formula uses [#[variable]] as its reference. However, the other table--call it Table 2--autofills with references to Table 1, i.e., 'Table 1'[#[variable]].
I have searched and replaced these several times, and rewritten the formulae, but each time I refresh the data query these references pop up. I searched to replace Table 1 with Table 2, as it occurred to me this may be a namespace collision and Excel just takes the first-created table as canon. This, though, doesn't fix the issue, nor did changing the column names to create a non-colliding namespace.
The only other thing I can think is that I'd copied the formulas from Table 1 and even though I removed the table name perhaps Excel has held onto the reference. Is there a table cache or such that Excel references to keep pulling these? Should I create a new query and new table and manually create the formulae, or would that run into the same issue?
[Entering this as an answer so it's not shown as an outstanding question.]
Creating the relevant tables from scratch results in no such namespace collision nor any wonkiness thus far, as we'd expect. I realized that I'd left something out of my initial question: I had copied, in whole or part (likely whole), the tab containing Table 1 to create Table 2. Even editing the resulting new SQL query and the formulae on Table 2, it seems Excel--in its effort to help--recalls several components of the table and does not update this cached information.

Link dynamic database to new workbook in excel

I have a database of data in excel that I want to copy and paste (link) to a new sheet where I can manipulate the data to a more readable form. However, the database does not have a set number of cells and updates regularly (the reason why it needs to be linked). The database changes size on a daily basis either shrinking or expanding. Is there a way to link the database even though it need to be a dynamic range?
I have a similar situation for one of my reports where I don't want to mess with the live data. All I do is create the link by going to the new sheet and typing something like =iferror(C:\USER\Database.xlsx\sheet1!A1," ") and fill across all the way and down all the way. The iferror checks for data and if there is no data inserts a space. That is how you can overcome the dynamic columns and with issues. The new spreadsheet will then be linked to the raw data set and you can manipulate it as needed.

How to export SSIS to Microsoft Excel without additional software?

This question is long winded because I have been updating the question over a very long time trying to get SSIS to properly export Excel data. I managed to solve this issue, although not correctly. Aside from someone providing a correct answer, the solution listed in this question is not terrible.
The only answer I found was to create a single row named range wide enough for my columns. In the named range put sample data and hide it. SSIS appends the data and reads metadata from the single row (that is close enough for it to drop stuff in it). The data takes the format of the hidden single row. This allows headers, etc.
WOW what a pain in the butt. It will take over 450 days of exports to recover the time lost. However, I still love SSIS and will continue to use it because it is still way better than Filemaker LOL. My next attempt will be doing the same thing in the report server.
Original question notes:
If you are in Sql Server Integrations Services designer and want to export data to an Excel file starting on something other than the first line, lets say the forth line, how do you specify this?
I tried going in to the Excel Destination of the Data Flow, changed the AccessMode to OpenRowSet from Variable, then set the variable to "YPlatters$A4:I20000" This fails saying it cannot find the sheet. The sheet is called YPlatters.
I thought you could specify (Sheet$)(Starting Cell):(Ending Cell)?
Update
Apparently in Excel you can select a set of cells and name them with the name box. This allows you to select the name instead of the sheet without the $ dollar sign. Oddly enough, whatever the range you specify, it appends the data to the next row after the range. Oddly, as you add data, it increases the named selection's row count.
Another odd thing is the data takes the format of the last line of the range specified. My header rows are bold. If I specify a range that ends with the header row, the data appends to the row below, and makes all the entries bold. if you specify one row lower, it puts a blank line between the header row and the data, but the data is not bold.
Another update
No matter what I try, SSIS samples the "first row" of the file and sets the metadata according to what it finds. However, if you have sample data that has a value of zero but is formatted as the first row, it treats that column as text and inserts numeric values with a single quote in front ('123.34). I also tried headers that do not reflect the data types of the columns. I tried changing the metadata of the Excel destination, but it always changes it back when I run the project, then fails saying it will truncate data. If I tell it to ignore errors, it imports everything except that column.
Several days of several hours a piece later...
Another update
I tried every combination. A mostly working example is to create the named range starting with the column headers. Format your column headers as you want the data to look as the data takes on this format. In my example, these exist from A4 to E4, which is my defined range. SSIS appends to the row after the defined range, so defining A4 to E68 appends the rows starting at A69. You define the Connection as having the first row contains the field names. It takes on the metadata of the header row, oddly, not the second row, and it guesses at the data type, not the formatted data type of the column, i.e., headers are text, so all my metadata is text. If your headers are bold, so is all of your data.
I even tried making a sample data row without success... I don't think anyone actually uses Excel with the default MS SSIS export.
If you could define the "insert range" (A5 to E5) with no header row and format those columns (currency, not bold, etc.) without it skipping a row in Excel, this would be very helpful. From what I gather, noone uses SSIS to export Excel without a third party connection manager.
Any ideas on how to set this up properly so that data is formatted correctly, i.e., the metadata read from Excel is proper to the real data, and formatting inherits from the first row of data, not the headers in Excel?
One last update (July 17, 2009)
I got this to work very well. One thing I added to Excel was the IMEX=1 in the Excel connection string: "Excel 8.0;HDR=Yes;IMEX=1". This forces Excel (I think) to look at all rows to see what kind of data is in it. Generally, this does not drop information, say for instance if you have a zip code then about 9 rows down you have a zip+4, Excel without this blanks that field entirely without error. With IMEX=1, it recognizes that Zip is actually a character field instead of numeric.
And of course, one more update (August 27, 2009)
The IMEX=1 will succeed importing data with missing contents in the first 8 rows, but it will fail exporting data where no data exists. So, have it on your import connection string, but not your export Excel connection string.
I have to say, after so much fiddling, it works pretty well.
P.S. If you are using a x64 bit version, make sure you call the DTExec from C:\Program Files\Microsoft SQL Server\90\DTS.x86\Binn. It will load the 32 bit Excel driver and work fine.
Would it be easier to create the Excel Workbook in a script task, then just pick it up later in the flow?
The engine part of SSIS is good but the integration with Excel is awful
"Using SSIS in conjunction with Excel is like having hot tar funnelled up your iHole in a road cone"
Dr. Zim, I believe you were the one that originally brought up this question. I totally feel your pain. I love SSIS overall, but I absolutely hate the limited tools that come standard for Excel. All I want to do is Bold the Heading or Row1 record in Excel, and not bold the following records. I have not found a great way to do that; granted I am approaching this with no script tasks or custom extensions, but you would think something this simple would be a standard option. Looks like I may be forced to research and program up something fancy for a task that should be so fundamental. I've already spent a rediculous amount of time on this myself. Does anyone know if you can use Excel XML with Excel versions: 2000/XP/2003? Thanks.
This is an old thread but what about using a flat file connection and writing the data out as a formatted html document. Set the mime type in the page header to "application/excel". When you send the document as an attachment and the recipient opens the attachment, it will open a browser session but should pop Excel up over the top of it with the data formatted according to the style (CSS) specified in the page.
Can you have SSIS write the data to an Excel sheet starting at A1, then create another sheet, formatted as you like, that refers to the other sheet at A1, but displays it as A4? That is, on the "pretty" sheet, A4 would refer to A1 on the SSIS sheet.
This would allow SSIS to do what it's good for (manipulate table-based data), but allow the Excel to be formatted or manipulated however you'd like.
When excel is the destination in SSIS, or the target export type in SSRS, you do not have much control over formatting and specifying how you want the final file to be. I have written a custom excel rendering engine for SSRS once, as my client was so strict about the format of final Excel report generated. I used 'Excel xml' to get the job done inside my custom renderer. May be you can use XML output and convert it to Excel XML using XSLT.
I understand you would rather not use a script component so perhaps you could create your own custom task using the code that a script contains so that others can use this in the future. Check here for an example.
If this seems feasible the solution I used was CarlosAg Excel Xml Writer Library. With this you can create code which is similar to using the Interop library but produces excel in xml format. This avoids using the Interop object which can sometimes lead to excel processes hanging around.
Instead of using a roundabout way to do this exercise of trying to write data to particular cell(s), format the cell(s), style them which is indeed a very tedius effort considering the support SSIS has for EXCEL, we could go the "template" way to do this.
assume we need to write data in the so & so cell with all the custom formating thats done on it. Have all the formatting in a sheet, say "SheetActual", Whereas the cells that will hold the data will actually have Lookups/ refrences/ Formulaes to refer to the original data that SSIS exports in a hidden sheet say "SheetMasterHidden" of the same Excel connection. This "SheetMasterHidden" will essentially hold the master data in default format that SSIS writes data to the excel. This way you need not worry about formatting the data runtime.
Formatting the Excel is a one time work "IF" the formatting dont change very often. If the format changes and the format is decided runtime this solution maynot go very well.
The answer is in the question. Over time, it became a progress status. However, there is SSRS that will create Excel files if you create TABLE presentations. It works pretty well too.

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