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transformations:append

APPEND ANOTHER TABLE

Category: Transform / Basic


Description

This action appends another table to the current dataset. This action can operate in 2 modes:

  • Append rows
  • Append columns


Use cases

  • Append rows.
    The other table (dataset) is appended as new rows at the bottom of the current table. Columns with the same name in both tables appear as one column in the result table. Columns in the appended table that don't exist in the main table are appended on the right.This mode has the useful feature of preserving the order of columns of the main dataset to which the other dataset is appended.
  • Append columns.
    The other table (dataset) is appended as new columns to the right of the current dataset. Columns from the appended table with the same name as in the main table are automatically renamed. The length of the resulting table is the longest length of the two tables.
  • Concatenation of similar datasets.
  • Incremental loading.


Remarks

To append multiple datasets, apply the "Append" action multiple times.


Action settings

SettingDescription
Table to appendSelect the dataset to append to the current one.
ModeOptions: Append rows at the bottom (columns with the same name are concatenated into one column), and,
Append columns to the right (columns with the same names are automatically renamed)

Regardless of the mode, a dotted line will connect this action to the appended dataset in the application window.


Examples

Example #1

Append Table 2 to Table 1 as additional columns.

Before (source table)

Table 1: Rivers list

River Continent
Nile Africa
Amazon South America

Table 2: The outflow

River Outflow
Nile Mediterranean
Amazon Atlantic Ocean

After (result table)

River Continent Outflow
Nile Africa
Amazon South America
Nile Mediterranean
Amazon Atlantic Ocean

Action parameters

Append columns to the right


Community examples


See also

transformations/append.txt · Last modified: 2025/01/10 16:23 by craigt

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