Faster Way To Delete Rows
Nov 11, 2009
My spreadsheet is a contract file that includes a list of part numbers being sold. Each part number refers to a lookup table of ALL about 20,000 valid part numbers and prices. Once the contract is finalized, I want to make the contract sheet smaller by deleting all rows in the lookup table that are not required for this contract.
The following code works, but it takes more than 10 minutes to work through the complete list. I read down the lookup table. For each record in the lookup table, I call a routine that reads through an array of the part numbers that are included in this contract. If the lookup table part number IS included in the contract, I skip it. If it is NOT required, I delete it. I then return to the main lookup table and read in the next lookup table record.
This is the main routine where I progress down the big lookup table.
'Work down the Price File range from top to bottom
Set RefTableRange = DSWPrices.Range("DSWPriceRange")
RefTableIndex = 1
Application.Calculation = xlCalculationManual
While RefTableIndex < RefTableRange.Rows.Count
RefTableIndex = RefTableIndex + 1
'check if this part number is included in the contract
Call CheckRefTableRow(RefTableRange, RefTableIndex)
Wend.....................................
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Jul 23, 2013
Any way that the following code could perform faster? Unfortunately, i'm deleting 35,000 rows of data quite frequently from a filtered list. Could be up to 35 columns wide.
Code:
ls = Cells(Rows.Count, 1).End(xlUp).Row
If ls > 1 Then
Range("A2:A" & ls).SpecialCells(xlCellTypeVisible).EntireRow.Delete
End If
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Apr 4, 2007
I'm using the following code to populate the columns next to the dynamic named range dataforgraph (varies in length). It works, but the problem is that it takes ages. Is there a more efficient way of doing it. It is important that it only populates the cells next to the varying dataforgraph. The avg1 and stadev1 are the same for each entry (thus constants)
For Each c In Sheet3.Range("dataforgraph")
c.Offset(0, 1) = Sheet3.Range("avg1")
c.Offset(0, 2) = Sheet3.Range("avg1") + Sheet3.Range("stadev1")
c.Offset(0, 3) = Sheet3.Range("avg1") - Sheet3.Range("stadev1")
c.Offset(0, 4) = Sheet3.Range("avg1") + 2 * Sheet3.Range("stadev1")
c.Offset(0, 5) = Sheet3.Range("avg1") - 2 * Sheet3.Range("stadev1")
Next c
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Jul 15, 2009
1. Remove J,K,N,A Columns,
2. In the last O (TIMESTAMP) column, the date is 14-Jul-09 format change it to 07/14/2009 (this format mm/dd/yyy
3.Filter L column (VAL_INLAKH) Remove all rows from whole sheet which has 0 value
4. Column C (EXPIRY_DT) date format is 24-Sep-09 , "dd-Sep-09" change to "Sep" only
5.Merge Column B,C,D,E (SYMBOL.EXPIRY_DT.STRIKE_PR.OPTION_TYP
respectively )
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Aug 21, 2009
I have an entire row of if statements that basically check other sheets if a number occurs. If it does then it will display "Pending Approval" ,"Open", or "Closed" depending on which sheet the # appears on .. Just wandering if their was a better formula for this..
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Jan 22, 2009
Is there a faster (maybe a non-loop) way of doing this?
Private Sub Worksheet_Activate()
Application.ScreenUpdating = False
Application.Calculation = xlCalculationManual
Dim Test1 As Single
Dim Test2 As Single
Dim Test3 As Single
With Sheet2
For Test1 = 33 To 52
If .Range("J" & Test1).Value = "End" Then
.Rows(Test1).Hidden = True
Else: .Rows(Test1).Hidden = False
End If
Next Test1
This causes a bit of a delay (7 seconds or so) when switching to the sheet, which is causing the user to think that excel has locked up.
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Sep 5, 2008
I have the following code kindly supplied to me by someone else and I'd like to know if anyone can suggest any ways to speed up the running of it. It currently takes about 4 minutes to run (there are about 5000 cells to loop through)
Basically it looks for a value in Col C - works out the number of rows to fill up by searching a range in Col D - then copies value in Col C up by that number of rows.
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May 30, 2009
way to bring more efficiency in this code.
I need to run this code on 100,000 rows every week and this takes hours to finish.
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Sep 1, 2008
Is there a way to count if there are 5 or more in a range without
using 'select case'
or not using the 'intcounter' bit bit of code?
Set Startcell = Sheets("meetingstodate").Cells(xlrow, 2)
Set Endcell = Sheets("meetingstodate").Cells(xlrow, 7)
Set rng = Range(Startcell, Endcell)
lastrow = Sheets("meetingstodate").Cells(xlrow, 2).End(xlDown).Row
For xlrow = 2 To lastrow
arr = Range(Startcell, Endcell).Value
For j = 1 To UBound(arr)
For k = 1 To UBound(arr, 2)
Select Case arr(j, k)
Case A
intcounter1 = 1
Case B .....................
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Nov 6, 2009
I have discovered a strange problem with my VBA code. After testing it on several machines, I've found no problems with my workbook until now. After being run on a rather slow Windows Vista laptop, I've found that VBA appears to be running faster than Excel, and consequently it is creating errors as VBA asks Excel to do things before it has finished a previous action. This is causing macros to fail several times in each run, though can be solved simply by pressing 'debug' and then F5 to continue the code. Is there a way to get VBA to run slower to solve this? As I can't think of any other way of doing it? I've certainly not seen it happen on any XP or Win 7 computer!
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Nov 9, 2009
Instead of doing a long long formula that is =VLOOKUP(x1,....)+VLOOKUP(x2,.....) is there a faster way of doing it in the one formula?
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Dec 27, 2008
I have the following section of code and i am trying to make it faster. Currently when this procedure runs the screen "changes" durings its execution. Now i know i can "turn off screen updating" and this will increase speed but are there commands in the code which will prevent the screen from updating. I know activating or selecting things causes the screen to change. Also, any inputs to make this faster/better would be greatly appreciated.
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Dec 10, 2009
I'm trying to improve a code that Indexes a series of prices to a day (the first day of a range). I'm doing this to numerous named ranges. The code that i build takes ages to do this:
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Nov 17, 2012
1. Is there a faster way to adjust the size of the columns? I had to use my mouse to stretch the column out. This can be quiet time consuming if there are 8 columns needing to adjust to the same size. ie Col A, B,I, J needs to be the same size.
2. Can Excel determine the best size for the column? Say I need a column with data saying "yes" and "no" and a column for the letter "X" only or do I have to stretch the width of the column myself?
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Nov 21, 2006
I have the following code performing SumIf and searching roughly 9,000 rows of data. Calculation takes roughly 15 seconds on the high side.
Bonus question from a rookie - This code runs well in Sheet2, but errors out on the SumIf's when placed in a module or userform. What needs to be changed for it to work outside of Sheet2?
Private Sub DistNeg_Click()
Dim BotRow As Long
Application.ScreenUpdating = False
Worksheets("Sheet2").Range("A4:E65536").ClearContents
'Copy current selected Distributor names to sheet2
Worksheets(1).Range("DIST1").Copy Destination:=Worksheets(2).Range("A4")
'Define the bottom row of distributors in this list.
BotRow = Worksheets(1).Range("DIST1").Rows.Count + 3
'Sum for PY, CY and $CHG sales. Create percentage Chg column.
Worksheets(2).Range(Cells(4, 2), Cells(BotRow, 2)).FormulaR1C1 = "=SUMIF(Sheet1!
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May 3, 2009
I am only looping it through about 4 thousand records, looking for match and dups and moving it over to the other sheet, so why is my code running so slow?
I have run other programs where the records are in 40 thousand and it doesn't take as long as it is right now. Is there a way to make code run faster?
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Jul 21, 2007
I need to find row numbers of the horizontal page breaks on a sheet quickly. The only method I have found to do this is by using the HPageBreaks property, which is painfully slow.
Is there another way of doing this that's faster? Or some other manner of using HPageBreaks that improves its speed?
The scenario is that I have a macro which generates a list of items where each item is two rows long. If an item intersects a page break--one row is on one page and the 2nd row is on the next page--I want to insert a row so that the entire item is on the next page.
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Feb 18, 2008
I have a macro which is able to run very fast in Excel 2000. Almost 5s. When i run it in Excel 2003, it takes almost 4 to 5 mins to complete. Is there any patch in 2003 i need to run the macro smoothly?
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Nov 18, 2009
I am transferring 10000 rows from 1 workbook to another..
It takes place smoothly for the first 30000 rows, but after that on the 'select' line it gives me an overflow error.
The code that I am using is as following: .....
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Jan 5, 2010
In my spreadsheet I load 26 CSV files. Each CSV file has 3 columns and 7 rows. It uses the connection query in Excel. It is only relatively slow to refresh the data. To refresh the data, I can press the refresh data button in Excel.
But in practice I use this code every 5 seconds:
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May 3, 2007
Here is exactly what was described:
A good place to start is to add some "timer code" in your macro. Add a small routine that saves a time value, and another routine that compares that saved value to the current time and displays the difference. At the beginning of a section of code you want to analyze, you call the first routine (which saves the start time), and then at the end of the section of code you call the second routine. In that way, you can determine which portions of your code are taking the longest time to execute. These are the code sections you then focus on, so you can figure out what they are doing that is taking so long.
This sounds like a great tool for optimization...
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Aug 8, 2007
To speed up copy and paste operations in a macro, I've heard that one can replace the following:
Sheet1.Range("A1:A200").Copy
Sheet2.Range("B1").pasteSpecial
with
Sheet2.Range("B1:B200").Value= Sheet1.Range("A1:A200").Value
The second code should run faster as the clipboard is not used to store the copied info.
When I tried this, though, I didn't notice any improvement in macro running speed.
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Jun 23, 2006
Is it possible to take a list of numbers then match those numbers to another list of numbers as a whole? I'm trying to make changes to my code and take some of the advice from previous threads, but I can't visualize it. I'm trying to get away from matching each list of numbers to each other line by line. I have an existing sheet (Master) that has several col's of data. Then I have another worksheet that has updated info that I need combined into the master. What I've done so far is added the information to the bottom of my existing data and sorted.
Now I have setup an advanced filter to display the dupes. Here is where it gets tricky..I can't just delete dupes b/c there are cols to the right that have history that cannot be deleted. So I need to copy ranges A to J of the new data and replace the old data within that range.
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Sep 25, 2012
How do I delete filtered rows without deleting the hidden rows in excel 2010?
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Apr 16, 2014
removing duplicate rows and move other data frm rows to columns.xlsx.
I am attaching a sample excel sheet showing what I need to do.In the first tab, I have a list that includes duplicate rows (first column only). I want to remove those duplicate rows but I don't want to lose the data in the following columns which can be unique or duplicates as well.
see the desired result tab in the sheet to get an idea of what I am looking for as the end result.
Keep in mind that the actual source file I am working with could have up to 50000 row, and the expected results could be around 2000 rows. So nothing can be done manually.
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Apr 3, 2014
In my excel I'm copying rows upon specific criteria to another tab.
The question is how I can delete copied rows and update the original tab without empty rows? (N of rows is always changing)
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Mar 4, 2014
Is there a way to reduce a file's size to make it smaller with faster load times? I have a file that has ballooned in size due to the number of formulas and images I have installed.
Sometimes the file shuts down on it's own and make's my computer really slow.
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May 22, 2008
Is there a limit on the number of rows and columns that can be deleted in a macro on Excel 2003? I am trying to create a macro that, amoung other things, delets 1119 rows and 54 columns. If I delete the columns first, the rows will not delete. If I delete the columns first, the rows will not delete.
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Feb 20, 2008
I am working with timesheet data (name, project code, task code, date, hours etc...) in one spreadsheet and rate card data (name, role, day rate etc...) in another.
My task is to pull together some of the information in each of these two source spreadsheets and compile a report. This I have done no problem. However, where a person works on a particular project and task on the same day and records multiple entries (which could be negative) I need to consolidate the hours in all these matching rows and have just one row reflect the total hours worked and delete the other duplicate rows.
So an example would be:
Project | Task | Name | Role | Date | Hours
123456 | 1.001 | Paul Jones | Project Manager | 20/02/2008 | 2.5
123456 | 1.001 | Paul Jones | Project Manager | 20/02/2008 | -2.5
123456 | 1.001 | Paul Jones | Project Manager | 20/02/2008 | 3.5
[Code]....
My problem is I don't think I have approached this the right way but am unsure of where to go with it. The code as is does sort of work but I still get some duplicate and zero lines in my results.
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May 10, 2012
I need a macro that can look at multiple (say three) rows and delete those rows if they match another three rows in the worksheet.
For example:
1 0
3 1
5 7
4 4
6 5
8 3
1 8
5 2
3 9
6 5
8 3
1 8
7 5
If three rows are the same, then one set is deleted (it can be either bottom or top set). I would like to do this for rows 1-500 in the worksheet.
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