??? ??? ??? ?? MongoDB?? ?? ???? ????? ?????????
??? ??? ??? ?? MongoDB?? ?? ???? ????? ??? ??????.
- MongoDB ??? ?? : ?? ???? Mongodb 3.6? ???????. MongoDB ?? ??? 3.6 ???? ??????.
-
MongoDB? ?????? : ????? ??? ??? MongoDB ????? ??????. ?? ??, Python??? Pymongo? ??? ? ????. ??? ???? ??? ??? ????.
<code class="python">from pymongo import MongoClient client = MongoClient('mongodb://localhost:27017/') db = client['your_database']</code>
-
?? ??? ?? : ?? ??? ?? ?? ???????? ?? ???? ?? ? ????. ??? ???? ????.
<code class="python">collection = db['your_collection'] change_stream = collection.watch()</code>
-
???? ?? : ??? ??? ??? ???? ?? ?? ???? ?????.
<code class="python">for change in change_stream: print(change) # Process the change here, eg, update caches, trigger actions, etc.</code>
-
??? ?? :
pipeline
?? ??? ???? ?? ??? ?? ?? ??? ??? ? ? ????.<code class="python">pipeline = [{'$match': {'operationType': 'insert'}}] change_stream = collection.watch(pipeline)</code>
-
??? ?? : ??? ??? ???? ??? ?? ???? ?? ??? ???? ??????.
<code class="python">for change in change_stream: resume_token = change['_id'] # Process the change # If needed, store resume_token to resume the stream later</code>
??? ??? ???? ??? ??? ??? ?? MongoDB? ?? ???? ????? ???? ?? ????? ??? ?? ??? ?? ? ? ????.
MongoDB ?? ???? ??? ? ??? ??????? ?? ??? ??????
MongoDB ?? ???? ??? ? ??? ?????? ?? ?? ??? ??????.
-
??? ?? ?? : ?? ???? ??? ???? ?? ? ??? ?? ????. ?? ????? ??? ?? ?? ? ??????.
<code class="python">pipeline = [{'$match': {'operationType': 'insert'}}] change_stream = collection.watch(pipeline)</code>
-
?? ?? : ? ??? ????? ???? ?? ?? ?? ? ???? ???? ?? ??? ??? ?? ?? ??? ??????.
<code class="python">batch_size = 100 batch = [] for change in change_stream: batch.append(change) if len(batch) >= batch_size: process_batch(batch) batch = []</code>
-
??? ?? ?? : ??? ?? ??? ???? ??? ???? ???? ??, ?? ??? ??? ??? ?????? ?????.
<code class="python">resume_token = None for change in change_stream: resume_token = change['_id'] # Process the change # Store resume_token to resume later if needed</code>
-
?? ?? ???? ? ?? : ? ?? ?? ????? ???? ?????. ?????? ??? ? ??????.
<code class="python"># Open only one change stream per collection that needs monitoring change_stream = collection.watch()</code>
- MongoDB? ???? ?????? . MongoDB ??? ??? ??? ? ?? ??? ??? ?? ??? ??? ?? ???? ??? ??????.
- ???? ? ?? ?? : MongoDB? ???? ??? ???? ?? ???? ??? ???? ??? ?? ??????.
??? ?? ??? ??? ?? ??? ??? ????? ????? ??? ? ????.
MongoDB ?? ????? ??? ???? ??? ????? ????? ?????????
MongoDB ?? ????? ?? ?? ? ?? ??? ????? ???? ??? ?? ??? ?????.
-
?? ?? : ?? ???? ??? ??? ?????? ??? ?? ??? ?????.
<code class="python">try: change_stream = collection.watch() for change in change_stream: # Process the change except pymongo.errors.PyMongoError as e: print(f"An error occurred: {e}") # Handle the error appropriately, eg, retry, log, or alert</code>
-
?? ?? : ?? ?? ???? ??? ????? ?????. Pymongo? ???? ?? ?? ????? ??? ??? ??????.
<code class="python">client = MongoClient('mongodb://localhost:27017/', maxPoolSize=100)</code>
-
? ?? ?? : ???? ??? ?? ?? ??? ???? ?? ?? ?? ??? ?????.
<code class="python">import time def watch_with_retry(collection, max_retries=3): retries = 0 while retries </code>
-
??? ?? ?? : ??? ??? ???? ?? ? ???? ??????.
<code class="python">resume_token = None try: change_stream = collection.watch() for change in change_stream: resume_token = change['_id'] # Process the change except pymongo.errors.PyMongoError: if resume_token: change_stream = collection.watch(resume_after=resume_token) # Continue processing from the resume token</code>
??? ??? ???? ??? ????? ???? ??? ?????? ??? ??? ??? ??? ?? ???? ?? ? ? ????.
MongoDB ?? ????? ??? ??? ??? ???? ??? ?? ? ?????? ??????
MongoDB ?? ????? ??? ??? ??? ???? ??? ? ?? ??? ?????? ??? ????.
- KAFKA : MongoDB ?? ???? Apache Kafka? ???? ?? ???? ?? ??? ??? ?????. MongoDB Kafka ???? Kafka Connect? ???? MongoDB?? Kafka ??? ??? ??? ???? ? ? ????.
- Apache Flink : Apache Flink? MongoDB ?? ???? ???? ????? ???? ? ??? ??? ??? ??? ?? ??? ?????. Stateful Computations ? Event Time Processing? ?? ??? ?????.
- Debezium : Debezium? ?? ??? ????? ?? ?? ?? ??????. MongoDB ????????? ?? ??? ???? Kafka? ?? ??? ??? ?????? ??? ??? ??? ?? ? ? ????.
- ?? ??? : ?? ???? Apache Kafka? ???? ? ??? ???? ??????. ??? ??? ????? ??? ???? MongoDB Kafka ???? ???? MongoDB ?? ???? ?? ? ? ????.
- PYMONGO : MongoDB? ?? Python ???? ? Pymongo? MongoDB Change ???? ?? ???? ??? ??? ?????. ??? ??? ?? ??? ???? ? ?? ?????.
- Mongoose : Node.js ???? ?? Mongoose? MongoDB Change ????? ???? ??? ??? ???? ODM (Object Data Modeling) ????????.
- ??? ? : ??? ? ??? ???? ???? MongoDB ?? ????? ???? ???? ??? ???? ???? ??? ??? ?? ??? ??? ???????.
- CDC (Change Data Capture) ?? : Striim? ?? ??? CDC ??? MongoDB? ?? ??? ???? ??? ??? ?? ?? ????? ???? ? ? ????.
??? ?? ? ?????? ???? MongoDB ?? ???? ???? ? ??? ??? ?? ???? ??? ?????? ???? ?? ??? ???? ?? ? ? ????.
? ??? ??? ??? ??? ?? MongoDB?? ?? ???? ????? ?????????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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mongodbacheievesschemaflexiblectroughitsdocument-orientedstructurethallowsdynamicschemas.1.collectionsdon'tenforcearigidschema, enablingdocuments withvaryingfieldsinthesamecolection.2.dataisstoredinbsonformat, supportingvariedandnestedstru

MongoDB ?? ??? ???? ?????? ???????. 1. ??? ??? ??? ?? ? ?? ??? ??? ??? ????. ??? ???? ?? ??? ??? ?? ??? ?? ??? ???? ?? ????. 2. ?? ??? ?? ??? ??? ??? ????. ??? ??? ?? ? ????? ???? ?????. 3. Skip () ??? ??? ? ??? ???? ???????. ?? ??? ?? ID? ???? ?? ???? ???? ?? ????. 4. ?? ??? ???? ?????? ??? ??? ? ????. PaddingFactor? ????? ???? WiredTiger ??? ???? ???? ? ????? ????? ?? ????.

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MongoDB?? ???? ??? find () ???? ???? ???? ??? $ eq, $ gt, $ lt ?? ?? ?? ???? ?? ??? ? ? ????. 1. $ eq? ????? db.users.find? ?? ???? ????? ? ? ?? ?? ????? ({active "}); 2. $ gt ? $ lt? ?? ?? ???? ???? db.products.find ({price : {$ gt : 100}})? ?? ?? ??? ?????. 3. $ ?? $? ?? ?? ???? ???? db.users.find ({$ ?? : [{status : "act? ?? ?? ??? ??????.

mongodbdriversarelibrariesthatenablepplicationStointeractwithMongBusingThenativesTaxofSpecificProgrammingLanguage, simplifyingDatabaseOperationsByHandlingLow-tevelCommunicationandDataFormatconversion.theyactasabridgebetwemplicationAnteApplicationAnda

???? ??? ??? ???? ??? ?? ??? ???? ?? ??? ???? ?? ????? ?? ??? ?? ???? ???? ???? ??????? ??? ? ????. 2. ?? ??? ????? ??? ? ??? ?? ? ? ?? ??? ???? ?? ?? ??? ??????. 3. ?? ???? ?? ???? ?? ??? ? ?? ??? ????? ???????? ?? ?? ? ?? ?? ??? ????. 4. ?? ??? ?????? ???? Jsonschema? ???? ?? ??? ???? ??? ???? ????? ?? ??? ???? ??? ? ??? ??????. MongoDB? Pattern Evolution Management ?? ????? ????? ?????? ???? ???? ????? ?????? ?? ???? ?? ???? ??? ????.

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