RowNumber returns a sequential number to every row within the specified scope.
Synatax
Parameter
Scope: The name of dataset, data region or group or null/nothing. Based on scope it resets the row count to 1. If scope is defined as nothing it will assign each row a unique number and will be equal to the number of rows.
Similar function in SQL Server: Row_Number in SQL
Example
Let's create a report and see how RowNumber works. For this, we will continue on a Tabular Report we created in an earlier article.
Step 1: Create a simple Tabular Report
First Create a simple Tabular Report using above link. Reports look like this
Once report is created we would generate Row Number to the report.
Step 2: Right Click on Department Column Header and add a column to its Left and name the Column Header as S.No
Step 3: Right Click on S.No Data Column and click Expression.
Step 4: In the Expression window, set expression value as =RowNumber(Nothing) and click Ok
Step 5: Here we have defined the scope as Nothing, so it will generate a unique RowNumber to the result-set. Let's run the report and see the output.
Check the output, we have a column S.No with unique Row Number (S.No) in the output.
Now let's change the scope of RowNumber to a Group.
Step 6: Right click Data Region, Then Add Group>Parent Group and add GroupName as Group
This will add a new column Group Name to the report.
Right click and Delete the newly created Group Name Column. While deleting it will prompt two options. Select Delete columns only. Add a new Column S.No by GroupName to the right of S No Column
Step 7: Right click the new Data Column S No By GroupName and click Expression. Set the expression to =RowNumber("GroupName")
Step 8: Now we have defined the scope as GroupName, so S.No by GroupName should be reset to 1 for each GroupName. Let's run the report and check the output
Check S.No by GroupName column where RowNumber is starting with 1 for each GroupName.
Similar function in T-SQL: Row_Number in SQL
Synatax
RowNumber(Scope)
Parameter
Scope: The name of dataset, data region or group or null/nothing. Based on scope it resets the row count to 1. If scope is defined as nothing it will assign each row a unique number and will be equal to the number of rows.
Similar function in SQL Server: Row_Number in SQL
Example
Let's create a report and see how RowNumber works. For this, we will continue on a Tabular Report we created in an earlier article.
Step 1: Create a simple Tabular Report
First Create a simple Tabular Report using above link. Reports look like this
Once report is created we would generate Row Number to the report.
Step 2: Right Click on Department Column Header and add a column to its Left and name the Column Header as S.No
Step 3: Right Click on S.No Data Column and click Expression.
Step 4: In the Expression window, set expression value as =RowNumber(Nothing) and click Ok
Step 5: Here we have defined the scope as Nothing, so it will generate a unique RowNumber to the result-set. Let's run the report and see the output.
Check the output, we have a column S.No with unique Row Number (S.No) in the output.
Now let's change the scope of RowNumber to a Group.
Step 6: Right click Data Region, Then Add Group>Parent Group and add GroupName as Group
This will add a new column Group Name to the report.
Right click and Delete the newly created Group Name Column. While deleting it will prompt two options. Select Delete columns only. Add a new Column S.No by GroupName to the right of S No Column
Step 8: Now we have defined the scope as GroupName, so S.No by GroupName should be reset to 1 for each GroupName. Let's run the report and check the output
Check S.No by GroupName column where RowNumber is starting with 1 for each GroupName.
Similar function in T-SQL: Row_Number in SQL
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