Tabula de Fluxo de Persona
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Questions and Answers

Quando un usuario inserta un datos, qual es le stato del circulation_state?

  • 01=迁入 (correct)
  • 02=迁出
  • house_id
  • living_type

    • Como es determinate le stato final de un usuario?

  • Per le stato del circulation_state del ultimo datos
  • Per le numero de datos
  • Per le stato del circulation_state de tote le datos (correct)
  • Per le stato del circulation_state del prime datos

    • Que tipo de datos es necessari pro obtener le prime circulation_time de un usuario?

  • Le prime datos del usuario (correct)
  • Tote le datos del usuario
  • Le ultimo datos del usuario
  • Le datos del usuario con circulation_state = 01

    • Como es determinate le ultimo circulation_time de un usuario?

    <p>Per le circulation_time del ultimo datos con circulation_state = 02</p> Signup and view all the answers

    Que evento causa un cambio in le stato del circulation_state de un usuario?

    <p>Insertion de un datos con circulation_state = 02</p> Signup and view all the answers

    Qual es le scopo del campo circulation_time in le tabella base_person_migratory?

    <p>Pro registrar le tempo de circulation de un usuario</p> Signup and view all the answers

    Study Notes

    Table Structure of base_person_migratory

    • The table has the following fields: id, person_id, circulation_state, house_id, living_type, and circulation_time.
    • circulation_state has two possible values: 01 for "迁入" (move in) and 02 for "迁出" (move out).

    Data Insertion and Circulation State

    • When inserting a new record, the person_id, circulation_state (with value 01), house_id, living_type, and circulation_time are inserted.
    • A person can have multiple records with the same person_id but different house_ids.
    • If a person has multiple records with different house_ids and all of them have a circulation_state of 02, the person's final state is considered "迁出" (moved out).

    Business Logic for Circulation State

    • If a person moves into multiple houses (multiple records with circulation_state = 01) and then moves out of all of them (all records updated to circulation_state = 02), their final state is considered "迁出" (moved out).
    • If a person moves into multiple houses but only moves out of some of them (some records updated to circulation_state = 02), their final state is considered "迁入" (moved in).

    Retrieving Circulation Times

    • The task is to retrieve the first circulation_time when a person moves into multiple houses.
    • If the person moves out of all of those houses, the task is to retrieve the last circulation_time of the move-out records.
    • If the person moves into multiple houses again, the task is to retrieve the latest circulation_time of the new move-in records.

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    Description

    Questo quiz treata le operazioni de registrazione de datos de personas e circulation states in una tabula. Prova tua comprensione del funcionamento de iste sistema!

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