MongoDB
C100DBA · Question #81
What does the following query do when performed on the posts collection? db.posts.update({_id:l},{Title:This is post with ID 1"})
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MongoDB Fundamentals
Question
What does the following query do when performed on the posts collection? db.posts.update({_id:l},{Title:This is post with ID 1"})
Options
- ASyntax error
- BReplaces the complete document with _id as 1 with the document specified in second parameter
- CUpdates the Title of the post
- DUpdating a document is possible only with $set
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Topics
#document replacement#update behavior#$set operator