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toilahtc Beginner
Asked At: 1664416987000 In: SQL
toilahtc Beginner Asked At: 1664416987000 In: SQL
transaction: có thể thực thi câu lệnh sql trong transaction nếu có exception xảy ra không
Giả sử: trong 1 transaction có 2 câu lệnh insert A và B

  • insert A : ok
  • insert B:  exception

Liệu có cách nào để vẫn thực thi câu lệnh insert A không ạ?

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transaction
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monkey Beginner
Added an answer at: 1664417458000
monkey Beginner
Added an answer at: 1664417458000
Mục tiêu của transaction là nếu A hoặc B failed thì cả 2 sẽ bị rollback, nên có vẻ em đang làm hơi ma giáo nhỉ. Tuy nhiên em có thể code kiểu này: 

transaction.begin()
try {
  insert A,
  insert B
} finally {
   transaction.commit();
}

Thì nó sẽ commit ngay cả khi B bị lỗi và A sẽ được giữ trạng thái là insert em ạ.

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EndlessLove Beginner
Added an answer at: 1664753169000
EndlessLove Beginner
Added an answer at: 1664753169000
có 1 cách nữa là tạo 1 transaction khác nằm trong trasaction đó với độ ưu tiên cao hơn, cụ thể là propagation = propagation.requires_new
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