Dupicate search

[jotool2]

I would like when entering an identification # to be able to have Excel automatically search the same column to find if it was previously in the database, and if so, to place a "1" if it has been repeated or a "2" if it has not in another column. I was thinking I would need an IF function to do this?

 

[VoG]

Hello and welcome to MrExcel.

Try this - formula in B1 copied down:

<b>Sheet28</b><br /><br /><table border="1" cellspacing="0" cellpadding="0" style="font-family:Calibri,Arial; font-size:11pt; background-color:#ffffff; padding-left:2pt; padding-right:2pt; "> <colgroup><col style="font-weight:bold; width:30px; " /><col style="width:64px;" /><col style="width:64px;" /></colgroup><tr style="background-color:#cacaca; text-align:center; font-weight:bold; font-size:8pt; "><td > </td><td style=" border-width:3px; border-styleutset;border-color:#f0f0f0; ">A</td><td style=" border-width:3px; border-styleutset;border-color:#f0f0f0; ">B</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >1</td><td style="text-align:right; ">9</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >2</td><td style="text-align:right; ">12</td><td style="text-align:right; ">2</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >3</td><td style="text-align:right; ">5</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >4</td><td style="text-align:right; ">2</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >5</td><td style="text-align:right; ">5</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >6</td><td style="text-align:right; ">15</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >7</td><td style="text-align:right; ">8</td><td style="text-align:right; ">2</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >8</td><td style="text-align:right; ">10</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >9</td><td style="text-align:right; ">15</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >10</td><td style="text-align:right; ">15</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >11</td><td style="text-align:right; ">5</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >12</td><td style="text-align:right; ">5</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >13</td><td style="text-align:right; ">2</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >14</td><td style="text-align:right; ">9</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >15</td><td style="text-align:right; ">9</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >16</td><td style="text-align:right; ">4</td><td style="text-align:right; ">2</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >17</td><td style="text-align:right; ">10</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >18</td><td style="text-align:right; ">5</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >19</td><td style="text-align:right; ">15</td><td style="text-align:right; ">1</td></tr><tr style="height:18px ;" ><td style="border-width:3; border-styleutset;border-color:#f0f0f0; background-color:#cacaca; text-align:center; " >20</td><td style="text-align:right; ">2</td><td style="text-align:right; ">1</td></tr></table><br /><table style="font-family:Arial; font-size:10pt; border-style: groove ;border-color:#00ff00;background-color:#fffcf9; color:#000000; "><tr><td ><b>Spreadsheet Formulas</b></td></tr><tr><td ><table border = "1" cellspacing="0" cellpadding="2" style="font-family:Arial; font-size:9pt;"><tr style="background-color:#cacaca; font-size:10pt;"><td >Cell</td><td >Formula</td></tr><tr><td >B1</td><td >=IF(COUNTIF<span style=' color:008000; '>(A:A,A1)</span>>1,1,2)</td></tr></table></td></tr></table> <br />Excel tables to the web - Excel Jeanie Html 4

 

[jotool2]

Worked perfect.
Thanks!
JOT