Collation and Row Deletion - Teradata Database

SQL Data Manipulation Language

Product
Teradata Database
Release Number
15.10
Language
English (United States)
Last Update
2018-10-06
dita:id
B035-1146
lifecycle
previous
Product Category
Teradata® Database

Collation can affect the deletion of rows from tables defined with a character partitioning expression.

  • If the collation for a table is either MULTINATIONAL or CHARSET_COLL and the definition for the collation has changed since the table was created, Teradata Database aborts any request that attempts to delete a row from the table and returns an error to the requestor.
  • If a noncompressed join index with a character partitioning expression defined with either an MULTINATIONAL or CHARSET_COLL collation sequence is defined on a table and the definition for the collation has changed since the join index was created, Teradata Database aborts any request that attempts to delete a row from the table and returns an error to the requestor whether the operation would have deleted rows from the join index or not.
  • The session mode and collation at the time the table was created need not match the current session mode and collation for the delete operation to succeed.