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Truncate vs Delete

MediumSQL · PostgreSQL00:00
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Your question is Truncate vs Delete. Start with the requirements and the one table on the right.

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Problem

What is the difference between TRUNCATE and DELETE in SQL?

Asked in the Technical Phone Screen stage. SQL DDL vs DML commands.

Output

  1. Explain the difference in how each command removes rows.
  2. Explain the difference in transaction behavior and rollback support.
  3. Explain the difference in identity or sequence handling.
  4. Explain any restrictions that affect when each command can be used.

Schema

table_name
ColumnTypeDescription
idPKINTPrimary key
statusVARCHAR(20)Row status
created_atTIMESTAMPRow creation timestamp
Tablestable_name
Your solutionPostgreSQL
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