Database Fun

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Across
  1. 4. A set of rules that define valid data.
  2. 7. SQL commands modifying data (AKA Data Manipulation Language)
  3. 8. A file that provides a chronological log of database messages and errors.
  4. 9. A placeholder in a SQL that must be replaced with a valid value for the statement to execute
  5. 11. A situation in which resources are held by two or more connections that are each needed by the other connections.
Down
  1. 1. The key linking a record to a record in another table.
  2. 2. The column or set of columns that uniquely identifies a row in a table.
  3. 3. A join formed between two tables that also include the values from one table that do not have matching rows in the other.
  4. 5. SQL commands used to modify schema (AKA Data Definition Language)
  5. 6. It is a placeholder for an unknown value.
  6. 10. A data structure that helps speed data access.