Answers for "check if a field exists mongodb"

mongodb exists

db.records.find( { a: { $exists: true } } )

Posted by: Guest on October-09-2020

mongodb check if field exists java

DBObject query;
query = new BasicDBObject("fields_name", new BasicDBObject("$exists", true));
DBCursor result = collection.find(query);

Posted by: Guest on December-07-2020

mongodb exists

db.records.find( { a: { $exists: true } } )

Posted by: Guest on October-09-2020

mongodb check if field exists java

DBObject query;
query = new BasicDBObject("fields_name", new BasicDBObject("$exists", true));
DBCursor result = collection.find(query);

Posted by: Guest on December-07-2020

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