Query query = new Query(Criteria.where("name").is(name)); return mongoTemplate.find(query, User.class); } public void deleteUserById(String id) { Query query = new Query(Criteria.where("id").is(id)); mongoTemplate.remove(query, User.class); }} 1. 2. 3. 4. 5. 6. 7. 8. 9....
1) org.springframework.data.mongodb.core.query 2) org.springframework.data.mongodb.core.query.BasicQuery 这两个参数的区别和使用,在Spring Data MongoDB 三:基本文档查询(Query、BasicQuery)(一) 有介绍过,就在具体介绍 (2) update 1) org.springframework.data.mongodb.core.query.Update 2) 子类org....
在MongoDB中,UpdateMany是一个用于更新多个文档的操作。它可以根据指定的条件来选择要更新的文档,并使用其他字段的值来更新这些文档。 具体来说,UpdateMany操作可以使用以下方式来...
updateMany( <query>, { $set: { status: "D" }, $inc: { quantity: 2 } }, ... ) Update with an Aggregation Pipeline Starting in MongoDB 4.2, the db.collection.updateMany() method can accept an aggregation pipeline [ <stage1>, <stage2>, ... ] that specifies the modifications to...
This query sets the age field of all documents with name "John" to 40. If no matching document is found, a new document will be inserted with name "John" and age set to 40. Conclusion The updateMany() method is a powerful tool for modifying multiple documents in a MongoDB collection....
return dbCollection.updateMany(query, updates, updateOptions); } else { return dbCollection.updateOne(query, updates, updateOptions); } } 代码示例来源:origin: de.bwaldvogel/mongo-java-server-test-common @Test public void testUpdateWithIdInMultiReturnModifiedDocumentCount() { collection.insertMany(...
有什么问题吗？$subtract中的find()是不工作的原因吗？
Well this isn't a great solution cause you will call the db a lot of times for each data to update 👍 2 ephys mentioned this issue Dec 15, 2022 Model.destroyMany to destroy many instances in one query #15459 Open 8 tasks Bossorcain mentioned this issue Mar 14, 2023 queryInte...
updateMany( <query>, { $set: { status: "D" }, $inc: { quantity: 2 } }, ... ) Update with an Aggregation Pipeline Starting in MongoDB 4.2, the db.collection.updateMany() method can accept an aggregation pipeline [ <stage1>, <stage2>, ... ] that specifies the modifications to...