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PostgresDB 01004: String Data Right Truncation

String data was truncated on the right.

When encountering the error ` in PostgresDB, it indicates that an attempt was made to store a string in a column, but the string was too long and got truncated. Here is a recommended course of action:

  1. Identify the Table and Column: First, identify which table and column this error pertains to. The error message might not always specify this, so you might need to check your application logs or the context in which the error occurred to pinpoint the operation that caused this error.
  2. Check Column Data Type and Length: Once you've identified the table and column, check the data type and length constraint of the column. You can use the following SQL query to get the data type and character maximum length of a column:
  3. SELECT
    column_name,
    data_type,
    character_maximum_length
    FROM
    information_schema.columns
    WHERE
    table_name = 'your_table_name' AND
    column_name = 'your_column_name';
  4. Replace your_table_name and your_column_name with the actual table and column names.
  5. Compare the Data: Compare the length of the data you are trying to insert or update with the character_maximum_length found in step 2. This will help you understand if the data exceeds the column's capacity.
  6. Adjust the Data or Column Size:
    • If the data being inserted or updated can be safely truncated without losing important information, adjust the data to fit within the column's maximum length.
    • If the data needs to be preserved entirely, consider altering the column to increase its size. Use the following SQL query to alter the column:
    • ALTER TABLE your_table_name
      ALTER COLUMN your_column_name TYPE character varying(new_size);
    • Replace your_table_name, your_column_name, and new_size with the actual table name, column name, and new size for the column, respectively.
  7. Test: After making adjustments, attempt to insert or update the data again.
  8. Review Application Design: Consider reviewing the application design to ensure that the data length being sent to the database matches the schema expectations. This might include adding validation checks before attempting to insert or update data in the database.

Taking these steps should help resolve the String Data Right Truncation error in PostgresDB.

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