Thread: macro to check if a value exist in sheet and add it if it doesnt

Hi,

I need help from you experts on this problem I'm having:

I've attached a sample workbook with the post.

I need a macro to go through the values in column A in the "reference" tab and check if the value already exist in column B in "master" sheet. If it does, then do nothing for that cell and continue on to the next cell, if it doesn't exist then add all three values for that row (column A, B and C) to the end of the table in "master" sheet and then go to the next cell. Go through all the values in column A in the "reference" tab.

Please help.

RetroGun,

Welcome to the Excel Forum.


Detach/open workbook UpdateMaster wR c wM NR - RetroGun - EF790131 - SDG10.xlsm and run macro UpdateMaster.

RetroGun,

Detach/open workbook UpdateMasterV2 wR c wM NR and col F - RetroGun - EF790131 - SDG10.xlsm and run macro UpdateMasterV2.


You now have two different macros for two different worksheets named Master (different layouts). One macro can be written to accomodate both layouts for worksheet Master.

I seem to suck at programming

Training / Books / Sites

How to Learn to Write Macros
http://articles.excelyogi.com/playin...ba/2008/10/27/

How to use the macro recorder
http://articles.excelyogi.com/

Click here and scroll down to Getting Started with VBA.
http://www.datapigtechnologies.com/ExcelMain.htm

If you are serious about learning VBA try
http://www.add-ins.com/vbhelp.htm

Excel Tutorials and Tips - VBA - macros - training
http://www.mrexcel.com/articles.shtml

See David McRitchie's site if you just started with VBA
http://www.mvps.org/dmcritchie/excel/getstarted.htm

What is a Visual Basic Module?
http://www.emagenit.com/VBA%20Folder...vba_module.htm

Debra Dalgleish has some notes how to implement macros here:
http://www.contextures.com/xlvba01.html

David McRitchie has an intro to macros:
http://www.mvps.org/dmcritchie/excel/getstarted.htm

Ron de Bruin's intro to macros:
http://www.rondebruin.nl/code.htm

Creating custom functions
http://office.microsoft.com/en-us/ex...117011033.aspx

Writing Your First VBA Function in Excel
http://www.exceltip.com/st/Writing_Y...Excel/631.html

Where to paste code in VBE VBA
Introducing the Excel VBA Editor
http://www.ask.com/web?qsrc=2417&o=1...cel+VBA+Editor

VBA for Excel (Macros)
http://www.excel-vba.com/excel-vba-contents.htm

VBA Lesson 11: VBA Code General Tips and General Vocabulary
http://www.excel-vba.com/vba-code-2-1-tips.htm

Excel VBA -- Adding Code to a Workbook
http://www.contextures.com/xlvba01.html

http://www.excel-vba.com/
http://www.mvps.org/dmcritchie/excel/getstarted.htm
http://www.exceltip.com/excel_links.html

(livelessons video)
Excel VBA and Macros with MrExcel
ISBN: 0-7897-3938-0
http://www.amazon.com/Excel-Macros-M...7936479&sr=1-1

Excel Tutorials / Video Tutorials - Functions
http://www.contextures.com/xlFunctions02.html

http://www.xl-central.com/index.html

http://www.datapigtechnologies.com/ExcelMain.htm

Cascading queries

http://www.tushar-mehta.com/excel/ne...ing_dropdowns/

Excel VLOOKUP Function and VLOOKUP Example
http://www.contextures.com/xlFunctions02.html

INDEX MATCH - Excel Index Function and Excel Match Function
http://www.contextures.com/xlFunctions03.html

http://www.contextures.com/xlDataVal02.html
http://www.contextures.com/xlDataVal05.html
http://www.contextures.com/xlDataVal08.html#Larger

Excel Data Validation - Add New Items
http://www.contextures.com/excel-dat...ation-add.html

Programming The VBA Editor - Created by Chip Pearson at Pearson Software Consulting LLC
This page describes how to write code that modifies or reads other VBA code.
http://www.cpearson.com/Excel/vbe.aspx

Locating files containing VBA
Searching Files in Subfolders for VBA code string:
http://www.dailydoseofexcel.com/arch...a-code-string/

http://www.pcreview.co.uk/forums/thread-978054.php

Excel 2003 Power Programming with VBA (Excel Power Programming With Vba)
by John Walkenbach

VBA and Macros for Microsoft Excel, by Bill Jelen "Mr.Excel" and Tracy Syrstad

Excel Hacks 100 Industrial-Strength Tips & Tools, by David & Traina Hawley

VBA and Macros for Microsoft Excel 2007, by Bill Jelen "Mr.Excel" and Tracy Syrstad

Excel 2007 Book: you can try this...there is a try before you buy ebook available at this link…
http://www.mrexcel.com/learnexcel2.shtml

Professional Excel Development
by Stephen/ Bovey, Rob/ Green, John Bullen (Paperback - Feb 11, 2005)

Excel 2002 VBA: Programmers Reference
by Rob Bovey, Stephen Bullen, John Green, and Robert Rosenberg (Paperback - Sep 26, 2001)

VB & VBA in a Nutshell: The Language
(http://www.amazon.co.uk/VB-VBA-Nutsh...4671189&sr=1-2)

Writing Excel Macros with VBA
(http://www.amazon.co.uk/Writing-Exce...4671189&sr=1-3)

User Form Creation
http://www.contextures.com/xlUserForm01.html

DonkeyOte: My Recommended Reading
Volatility
http://www.decisionmodels.com/calcsecretsi.htm

Sumproduct
http://www.xldynamic.com/source/xld.SUMPRODUCT.html
http://www.xldynamic.com/source/xld.SUMPRODUCT.html

Arrays
http://www.xtremevbtalk.com/showthread.php?t=296012

Pivot Intro
http://peltiertech.com/Excel/Pivots/pivotstart.htm

Sync Pivot Tables
http://www.mrexcel.com/forum/showthr...g+pivot+tables
Check out rorya's post at the very bottom of this link. It should do the trick:
http://www.experts-exchange.com/Soft..._22844558.html
Multiple pivot tables 1 filter to control all
http://www.excelforum.com/excel-prog...ntrol-all.html

Email from XL - VBA
http://www.rondebruin.nl/sendmail.htm

Outlook VBA
http://www.outlookcode.com/article.aspx?ID=40

Function Dictionary
http://www.xlfdic.com/

Function Translations
http://www.piuha.fi/excel-function-name-translation/

Dynamic Named Ranges
http://www.contextures.com/xlNames01.html

How to create Excel Dashboards
http://www.contextures.com/excel-dashboards.html
http://chandoo.org/wp/excel-dashboards/
http://chandoo.org/wp/management-dashboards-excel/
http://www.exceldashboardwidgets.com/

Excel Dashboard / Scorecard Ebook
http://www.qimacros.com/excel-dashboard-scorecard.html

Mike Alexander from Data Pig Technologies
Excel 2007 Dashboards & Reports For Dummies