mongodb query and return specific collections
I'm trying to return all collections where field grade: 'Grade Two', I've tried a number of queries but getting either error or nothing being returned. I want my query only return documents from the collection with 'Grade Two', that should return only two docs.
I've tried the below queries:
db.users.find({grade: "Grade Two"})
db.users.find({}, {grade: "Grade Two"})
db.users.find({}, {profile: {grade: "Grade Two"}})
I'm getting error with message: "errmsg" : "Unsupported projection option: profile: { grade: "Grade Two" }",
{
{
"_id": "4YH8hDjNhN39CTtZh",
"username": "philcee.philips",
"emails": [
{
"address": "ph@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Philcee",
"lastname": "Philips"
},
"gender": "Female",
"nationality": "foo",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "8UH8hDjNhN39CTtm6",
"username": "gibson.wilson",
"emails": [
{
"address": "wil@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Gibson",
"lastname": "Wilson"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "i7G8hDjKhN39CTYt9",
"username": "daniel.jones",
"emails": [
{
"address": "jones@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Daniel",
"lastname": "Jones"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade One"
},
"roles": {
"__global_roles__": [
"student"
]
}
}
Is there another way to query for specific docs from the collection mentioned?
mongodb mongodb-query
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
add a comment |
I'm trying to return all collections where field grade: 'Grade Two', I've tried a number of queries but getting either error or nothing being returned. I want my query only return documents from the collection with 'Grade Two', that should return only two docs.
I've tried the below queries:
db.users.find({grade: "Grade Two"})
db.users.find({}, {grade: "Grade Two"})
db.users.find({}, {profile: {grade: "Grade Two"}})
I'm getting error with message: "errmsg" : "Unsupported projection option: profile: { grade: "Grade Two" }",
{
{
"_id": "4YH8hDjNhN39CTtZh",
"username": "philcee.philips",
"emails": [
{
"address": "ph@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Philcee",
"lastname": "Philips"
},
"gender": "Female",
"nationality": "foo",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "8UH8hDjNhN39CTtm6",
"username": "gibson.wilson",
"emails": [
{
"address": "wil@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Gibson",
"lastname": "Wilson"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "i7G8hDjKhN39CTYt9",
"username": "daniel.jones",
"emails": [
{
"address": "jones@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Daniel",
"lastname": "Jones"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade One"
},
"roles": {
"__global_roles__": [
"student"
]
}
}
Is there another way to query for specific docs from the collection mentioned?
mongodb mongodb-query
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
Use.dotnotationdb.users.find({ "profile.grade": "Grade Two" })and for projectiondb.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
– Anthony Winzlet
Nov 25 '18 at 15:50
Great, thanks. This was really helpful. All good now.
– Israel Z Kollie
Nov 25 '18 at 16:22
add a comment |
I'm trying to return all collections where field grade: 'Grade Two', I've tried a number of queries but getting either error or nothing being returned. I want my query only return documents from the collection with 'Grade Two', that should return only two docs.
I've tried the below queries:
db.users.find({grade: "Grade Two"})
db.users.find({}, {grade: "Grade Two"})
db.users.find({}, {profile: {grade: "Grade Two"}})
I'm getting error with message: "errmsg" : "Unsupported projection option: profile: { grade: "Grade Two" }",
{
{
"_id": "4YH8hDjNhN39CTtZh",
"username": "philcee.philips",
"emails": [
{
"address": "ph@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Philcee",
"lastname": "Philips"
},
"gender": "Female",
"nationality": "foo",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "8UH8hDjNhN39CTtm6",
"username": "gibson.wilson",
"emails": [
{
"address": "wil@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Gibson",
"lastname": "Wilson"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "i7G8hDjKhN39CTYt9",
"username": "daniel.jones",
"emails": [
{
"address": "jones@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Daniel",
"lastname": "Jones"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade One"
},
"roles": {
"__global_roles__": [
"student"
]
}
}
Is there another way to query for specific docs from the collection mentioned?
mongodb mongodb-query
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
I'm trying to return all collections where field grade: 'Grade Two', I've tried a number of queries but getting either error or nothing being returned. I want my query only return documents from the collection with 'Grade Two', that should return only two docs.
I've tried the below queries:
db.users.find({grade: "Grade Two"})
db.users.find({}, {grade: "Grade Two"})
db.users.find({}, {profile: {grade: "Grade Two"}})
I'm getting error with message: "errmsg" : "Unsupported projection option: profile: { grade: "Grade Two" }",
{
{
"_id": "4YH8hDjNhN39CTtZh",
"username": "philcee.philips",
"emails": [
{
"address": "ph@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Philcee",
"lastname": "Philips"
},
"gender": "Female",
"nationality": "foo",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "8UH8hDjNhN39CTtm6",
"username": "gibson.wilson",
"emails": [
{
"address": "wil@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Gibson",
"lastname": "Wilson"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade Two"
},
"roles": {
"__global_roles__": [
"student"
]
},
{
"_id": "i7G8hDjKhN39CTYt9",
"username": "daniel.jones",
"emails": [
{
"address": "jones@gmail.com",
"verified": false
}
],
"profile": {
"name": {
"firstname": "Daniel",
"lastname": "Jones"
},
"gender": "Male",
"nationality": "bar",
"grade": "Grade One"
},
"roles": {
"__global_roles__": [
"student"
]
}
}
Is there another way to query for specific docs from the collection mentioned?
mongodb mongodb-query
mongodb mongodb-query
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
edited Nov 27 '18 at 16:24
Anthony Winzlet
15.4k41339
15.4k41339
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
asked Nov 25 '18 at 15:15
Israel Z KollieIsrael Z Kollie
809
809
Use.dotnotationdb.users.find({ "profile.grade": "Grade Two" })and for projectiondb.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
– Anthony Winzlet
Nov 25 '18 at 15:50
Great, thanks. This was really helpful. All good now.
– Israel Z Kollie
Nov 25 '18 at 16:22
add a comment |
Use.dotnotationdb.users.find({ "profile.grade": "Grade Two" })and for projectiondb.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
– Anthony Winzlet
Nov 25 '18 at 15:50
Great, thanks. This was really helpful. All good now.
– Israel Z Kollie
Nov 25 '18 at 16:22
Use
.dot notation db.users.find({ "profile.grade": "Grade Two" }) and for projection db.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })– Anthony Winzlet
Nov 25 '18 at 15:50
Use
.dot notation db.users.find({ "profile.grade": "Grade Two" }) and for projection db.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })– Anthony Winzlet
Nov 25 '18 at 15:50
Great, thanks. This was really helpful. All good now.
– Israel Z Kollie
Nov 25 '18 at 16:22
Great, thanks. This was really helpful. All good now.
– Israel Z Kollie
Nov 25 '18 at 16:22
add a comment |
1 Answer
1
active
oldest
votes
You can use .dot notation to find inside an object
db.users.find({ "profile.grade": "Grade Two" })
And to return specific field you can use projection in the second argument of the find query
db.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
add a comment |
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votes
You can use .dot notation to find inside an object
db.users.find({ "profile.grade": "Grade Two" })
And to return specific field you can use projection in the second argument of the find query
db.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
add a comment |
You can use .dot notation to find inside an object
db.users.find({ "profile.grade": "Grade Two" })
And to return specific field you can use projection in the second argument of the find query
db.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
add a comment |
You can use .dot notation to find inside an object
db.users.find({ "profile.grade": "Grade Two" })
And to return specific field you can use projection in the second argument of the find query
db.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
You can use .dot notation to find inside an object
db.users.find({ "profile.grade": "Grade Two" })
And to return specific field you can use projection in the second argument of the find query
db.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
answered Nov 25 '18 at 16:28
Anthony WinzletAnthony Winzlet
15.4k41339
15.4k41339
add a comment |
add a comment |
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Use
.dotnotationdb.users.find({ "profile.grade": "Grade Two" })and for projectiondb.users.find({ "profile.grade": "Grade Two" }, { "profile.grade": 1 })– Anthony Winzlet
Nov 25 '18 at 15:50
Great, thanks. This was really helpful. All good now.
– Israel Z Kollie
Nov 25 '18 at 16:22