Answers

Question and Answer:

  Home  Teradata

⟩ How teradata makes sure that there are no duplicate rows being inserted when its a SET table?

Teradata will redirect the new inserted row as per its PI to the target AMP (on the basis of its row hash value), and if it find same row hash value in that

AMP (hash synonyms) then it start comparing the whole row, and find out if duplicate.

If its a duplicate it silently skips it without throwing any error.

 296 views

More Questions for you: