A .NET Standard 2.0 class library that allows for the comparison of the data and structure in two or more System.DataTable objects, with a focus on data comparison. Table structures do not have to be identical, but they need to have the same primary key structure.
This library is available as a compiled package is on Nuget.org
https://www.nuget.org/packages/DataTableComparison/
In the example below are two tables. The row 2 First_Name is different (Table->"Beatice", Table_1->"Samone").
In the Rest table (Datatabe Comparer) the Out of sync in row 2 indicates the differnce between the two rows.
Table
| ID | First_Name | Last_Name |
|---|---|---|
| 1 | Joe | Smith |
| 2 | Beatrice | Smith |
| 3 | James | Bond |
Table_1
| ID | First_Name | Last_Name |
|---|---|---|
| 1 | Joe | Smith |
| 2 | Samone | Smith |
| 3 | James | Bond |
Datatable Comparer Result
| ID | Exists_In_Table | Exists_In Table_1 | Exists_In_Status | First_Name_Status | Last_Name Status | First_Name_Table | First_Name_Table_1 | Last_Name_Table | Last_Name_Table_1 |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Yes | Yes | In sync | In sync | In sync | Joe | Joe | Smith | Smith |
| 2 | Yes | Yes | In sync | Out of sync |
In sync | Beatrice | Samone | Smith | Smith |
| 3 | Yes | Yes | In sync | In sync | In sync | James | James | Bond | Bond |
Here is another example with three tables, table 3 has extra row
Table
| ID | First_Name | Last_Name |
|---|---|---|
| 1 | Joe | Smith |
| 2 | Samone | Smith |
| 3 | James | Bond |
Table_1
| ID | First_Name | Last_Name |
|---|---|---|
| 1 | Joe | Smith |
| 2 | Samone | Smith |
| 3 | James | Bond |
Table_2
| ID | First_Name | Last_Name |
|---|---|---|
| 1 | Joe | Smith |
| 2 | Samone | Smith |
| 3 | James | Bond |
| 4 | Joe | Bond |
Datatable Comparer Result
| ID | Exists_In_Table | Exists_In_Table_1 | Exists_In_Table_2 | Exists_In_Status | FIRST_NAME_Status | LAST_NAME_Status | First_Name_Table | First_Name_Table_1 | First_Name_Table_2 | Last_Name_Table | Last_Name_Table_1 | Last_Name_Table_2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Yes | Yes | Yes | In sync | In sync | In sync | Joe | Joe | Joe | Smith | Smith | Smith |
| 2 | Yes | Yes | Yes | In sync | In sync | In sync | Samone | Samone | Samone | Smith | Smith | Smith |
| 3 | Yes | Yes | Yes | In sync | In sync | In sync | James | James | James | Bond | Bond | Bond |
| 4 | Yes | Out of sync | Joe | Bond |