Update README.md

Faizgeeky · web-flow · commit f869fb53f594 · 2024-03-06T09:41:38.000+05:30
diff --git a/README.md b/README.md
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 # mongodb_cheatsheet
 Handlful cheatsheet which you can carry while using mongodb no need to search each commands on browser
+
+MongoDB Shell Cheatsheet
+
+Basic Commands:
+
+1. Start MongoDB Shell:
+   mongo
+
+2. View Databases:
+   show dbs
+
+3. Switch Database:
+   use mydatabase
+
+4. View Collections in Current Database:
+   show collections
+
+5. Create Database:
+   use mydatabase
+
+6. Create Collection:
+   db.createCollection("mycollection")
+
+7. Insert Document into Collection:
+   db.mycollection.insertOne({ key: "value" })
+
+8. Find Documents in Collection:
+   db.mycollection.find()
+
+9. Update Document in Collection:
+   db.mycollection.updateOne({ key: "value" }, { $set: { key: "new value" } })
+
+10. Remove Document from Collection:
+    db.mycollection.deleteOne({ key: "value" })
+
+11. Drop Collection:
+    db.mycollection.drop()
+
+12. Drop Database:
+    use mydatabase
+    db.dropDatabase()
+
+
+Advanced Commands:
+
+13. Index Management:
+    - Create Index: db.mycollection.createIndex({ key: 1 })
+    - List Indexes: db.mycollection.getIndexes()
+    - Drop Index: db.mycollection.dropIndex("indexName")
+
+14. Aggregation Framework:
+    db.mycollection.aggregate([...])
+
+15. Data Import and Export:
+    - Import Data from JSON: mongoimport --db mydatabase --collection mycollection --file data.json
+    - Export Data to JSON: mongoexport --db mydatabase --collection mycollection --out data.json
+
+16. User Management:
+    - Create User: db.createUser({ user: "username", pwd: "password", roles: ["readWrite"] })
+    - List Users: db.getUsers()
+    - Drop User: db.dropUser("username")
+
+17. Replica Sets and Sharding:
+    - Initialize Replica Set: rs.initiate()
+    - Add Replica Set Member: rs.add("hostname:port")
+    - Enable Sharding on Database: sh.enableSharding("mydatabase")
+    - Shard Collection: sh.shardCollection("mydatabase.mycollection", { shardKey: 1 })
+
+18. Server Administration:
+    - Server Status: db.serverStatus()
+    - Current Operations: db.currentOp()
+    - Server Logs: db.getLog("global")
