Print N Rows

Prints the specified number of records in the DataFrame. It is useful for seeing intermediate output

Type

transform

Class

fire.nodes.util.NodePrintFirstNRows

Fields

Name	Title	Description
title	Title
n	Num Rows to Print	Number of rows to be printed
columns	Select Columns to Print	Select the columns to display, or leave blank to show all columns
enableInExecution	Enable in Execution	If it’s enabled, during the execution data is displayed.
displayDataType	Display Data Type	If true display rows DataType

Details

Print N Rows Node Details

This node is used to print the first N rows from the incoming dataframe. You can choose to display all columns or select specific columns to focus on relevant data.

Input Parameters

• OUTPUT STORAGE LEVEL : Keep this as DEFAULT.

• TITLE : Enter a short description for the type of information being displayed.

• NUM ROWS TO PRINT : Set an integer value(N) which controls the number of rows to be displayed (Default N=10).

• SELECT COLUMNS TO PRINT : Choose specific columns to display. If no columns are selected, all columns will be shown.

• DISPLAY DATA TYPE : Shows the output dataframe column datatypes by default.

Output

• Displays the first N rows of the DataFrame with selected columns

• Passes the filtered DataFrame (with selected columns) to subsequent nodes

• Useful for data validation, debugging, and intermediate result inspection

Examples

Example 1: Display All Columns (No Column Selection)

When input 5 in “Num Rows to Print” and no columns selected, it shows first 5 rows with all columns:

PartID SupplierID PartName Category Price

P9271 S798 Part_D Electronics 249.99

P523 S955 Part_K Mechanical 156.50

P3201 S332 Part_M Electronics 320.75

P9634 S527 Part_G Mechanical 89.99

P9345 S850 Part_M Electronics 275.00

Example 2: Display Selected Columns Only

When input 5 in “Num Rows to Print” and columns PartID, PartName, Price are selected:

PartID PartName Price

P9271 Part_D 249.99

P523 Part_K 156.50

P3201 Part_M 320.75

P9634 Part_G 89.99

P9345 Part_M 275.00

Example 3: With Data Types Displayed

When “Display Data Type” is enabled:

Column DataType

PartID string

PartName string

Price double

PartID PartName Price

P9271 Part_D 249.99

P523 Part_K 156.50

P3201 Part_M 320.75