mongodb queries both with AND and OR

Question

can I use combination of OR and AND in mongodb queries?

the code below doesn\'t work as expected

db.things.find({
           $and:[
                {         


        

Answer 1

 db.things.find( {
      $and : [
               { 
                 $or : [ 
                         {"first_name" : "john"},
                         {"last_name" : "john"}
                       ]
               },
               { 
                 "Phone":"12345678"
               }
             ]
    } )

AND takes an array of 2 expressions OR , phone.
OR takes an array of 2 expressions first_name , last_name.

AND

• OR

  • first_name
  • last_name

• Phone Number.

Note: Upgrade to latest version of MongoDB, if this doesn't work.