JSON Data Type | Modify JSON Columns | VantageCloud Lake - Modifying JSON Columns - Teradata VantageCloud Lake

Lake - Working with SQL
Deployment
VantageCloud
Edition
Lake
Product
Teradata VantageCloud Lake
Release Number
Published
February 2025
ft:locale
en-US
ft:lastEdition
2025-11-21
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jbe1714339405530
You can use the following statements to modify a JSON column:
  • UPDATE. You can use the UPDATE statement to modify values of a JSON column in the SET clause.
    You can only update the JSON column, not individual portions of the JSON instance. Also, when referencing a JSON column in its entirety, the input format is the same as the INSERT statement.
  • MERGE. You can use the MERGE statement to:
    • Modify a JSON column based on the WHEN MATCHED THEN UPDATE clause.
    • Insert values into a JSON column based on the WHEN NOT MATCHED THEN INSERT clause.
      The following MERGE statement clauses are supported on JSON functions and methods:
      • The ON clause can be used to condition on a JSON instance.
      • The USING clause can be used to select the JSON column value.