Change data type

Change data type


Zoho DataPrep automatically identifies the data type of each column in your dataset during the time of import.

Sometimes due to multiple errors in the dataset, DataPrep may not correctly identify the data type, in which case you can manually override to change the data type of the column using the Change data type option.

To change the data type of a column

1. Right-click the column name and select the Change data type option from the context menu. 
        
2. The dropdown in the Operations panel shows a list of datatypes with match accuracy.

Match accuracy is the percentage of data volume in the selected column that conforms to a data type.

3. DataPrep supports the following data types:
  1. Text
  2. Number
  3. Decimal
  4. Timestamp
  5. Positive number
  6. Date
  7. Date time
  8. Currency
  9. Length
  10. Temperature
  11. Boolean
  12. Email
  13. URL
  14. List
  15. Map
  16. Percentage 
4. Choose a datatype from the listed types and click Apply.



If you select the date or date-time types

You can select the required tiles and construct the date or the date time format. 

1. Click to select the different date and time components to build your custom format.

2. You can choose 24-Hour format by selecting the hour-format icon which would appear at the right end when you hover your mouse over the text box.

3. You can click on the grip portion of the tile (grip icon that appears on hovering your mouse over) and move around the tiles to rearrange them.
4. A live preview of your date column is shown as you build your format.



The date or the date time format constructed is invalid if one or more of the following conditions are not met:
  1. You have to choose at least one tile from the Day, Month, and Year tiles.
  2. You can use the characters, 'Z' and 'T' only once in a date-time format.
  3. The tiles that follow the character, 'T' must be related to time such as Hours, Mins, Sec.
  4. A date-time format must contain an Hours tile.
  5. In a date-time format, you can use either the character, 'Z ' or any one of the T.zone tiles.
  6. You can choose only one format from the Day, Month, Year, Hours, Mins, and Sec tiles.
DataPrep allows only the following delimiters while constructing a date or a date-time format.

List of delimiters 
/ : - , . \s T Z

Note: \s denotes a single whitespace. Please provide an actual space when you provide the input. 

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