If/Then Statement in ArcMap to Remove Duplicates

How do I find duplicates in ArcMap?

Finding duplicate geometry

1. Start ArcMap.
2. On the main menu, click Customize > Toolbars > Data Reviewer.
3. Click the Select Data Check drop-down arrow on the Data Reviewer toolbar, click the plus sign (+) next to Duplicate Geometry Checks, then click Duplicate Geometry Check.

How do I remove duplicate rows in an attribute table?

Use the Delete Identical tool. In the syntax you specify the field you want to look for duplicates in and ArcMap deletes all but one of them automatically. You can also use the Find Identical tool to just find the identical features and delete them manually if you would like to check the results yourself.
 

How to query for duplicate records in a feature class table?

Note: The SQL statement selects both copies of duplicate records.
Follow the steps below.

1. Add SDE or personal geodatabase feature class to ArcMap.
2. Click Selection > Select by Attributes from the Main Menu.
3. For SDE data, copy the following SQL statement into the section labeled ‘SELECT *FROM [TABLE_NAME] WHERE:’.

How do I remove exact duplicates?

Remove duplicate values

1. Select the range of cells that has duplicate values you want to remove. Tip: Remove any outlines or subtotals from your data before trying to remove duplicates.
2. Click Data > Remove Duplicates, and then Under Columns, check or uncheck the columns where you want to remove the duplicates.
3. Click OK.

How do I eliminate duplicates?

Remove duplicate values

1. Select the range of cells, or ensure that the active cell is in a table.
2. On the Data tab, click Remove Duplicates .
3. In the Remove Duplicates dialog box, unselect any columns where you don’t want to remove duplicate values.

How do I find and delete duplicates quickly?

Delete duplicate files

1. On your Android device, open Files by Google .
2. At the bottom, tap Clean .
3. On the “Duplicate files” card, tap Select files.
4. Select the files you want to delete.
5. At the bottom, tap Delete .
6. On the confirmation dialog, tap Delete .

How do I check if an array contains duplicates?

function checkIfArrayIsUnique(myArray) { for (var i = 0; i < myArray. length; i++) { for (var j = i+1; j < myArray. length; j++) { if (myArray[i] == myArray[j]) { return true; // means there are duplicate values } } } return false; // means there are no duplicate values. }
 

How do I check if a set has duplicates?

One more way to detect duplication in the java array is adding every element of the array into HashSet which is a Set implementation. Since the add(Object obj) method of Set returns false if Set already contains an element to be added, it can be used to find out if the array contains duplicates in Java or not.

How can I remove the duplicate items in an array?

We can remove duplicate element in an array by 2 ways: using temporary array or using separate index. To remove the duplicate element from array, the array must be in sorted order. If array is not sorted, you can sort it by calling Arrays. sort(arr) method.

How do I remove all duplicates from an array?

Following is the algorithm to delete the duplicate array’s elements from the sorted array in the C programming language.
Repeat from i = 1 to num.

1. if (arr[i] != arr [i + 1]
2. temp [j++] = arr[i]
3. temp [j++] = arr[n- 1]
4. Repeat from i = 1 to j.
5. arr[i] = temp[i]
6. arr [i] = temp [i]
7. Return j.