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console_4.sql
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238 lines (220 loc) · 5.8 KB
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use python_db
db.createCollection("orders")
show collections
db.orders.deleteMany({})
db.orders.insertMany([
{
cust_id: "abc123",
ord_date: ISODate("2012-01-02T17:04:11.102Z"),
status: 'A',
price: 100,
items: [ { sku: "xxx", qty: 25, price: 1 },
{ sku: "yyy", qty: 25, price: 1 } ]
},
{
cust_id: "abc123",
ord_date: ISODate("2012-01-02T17:04:11.102Z"),
status: 'A',
price: 500,
items: [ { sku: "xxx", qty: 25, price: 1 },
{ sku: "yyy", qty: 25, price: 1 } ]
},
{
cust_id: "abc123",
ord_date: ISODate("2012-01-02T17:04:11.102Z"),
status: 'B',
price: 130,
items: [ { sku: "jkl", qty: 35, price: 2 },
{ sku: "abv", qty: 35, price: 1 } ]
},
{
cust_id: "abc123",
ord_date: ISODate("2012-01-02T17:04:11.102Z"),
status: 'B',
price: 250,
items: [ { sku: "jkl", qty: 25, price: 2 },
{ sku: "abv", qty: 25, price: 1 } ]
},
{
cust_id: "abc123",
ord_date: ISODate("2012-01-02T17:04:11.102Z"),
status: 'A',
price: 130,
items: [ { sku: "xxx", qty: 15, price: 1 },
{ sku: "yyy", qty: 15, price: 1 } ]
},
{
cust_id: "abc456",
ord_date: ISODate("2012-02-02T17:04:11.102Z"),
status: 'C',
price: 70,
items: [ { sku: "jkl", qty: 45, price: 2 },
{ sku: "abv", qty: 45, price: 3 } ]
},
{
cust_id: "abc456",
ord_date: ISODate("2012-02-02T17:04:11.102Z"),
status: 'A',
price: 150,
items: [ { sku: "xxx", qty: 35, price: 4 },
{ sku: "yyy", qty: 35, price: 5 } ]
},
{
cust_id: "abc456",
ord_date: ISODate("2012-02-02T17:04:11.102Z"),
status: 'B',
price: 20,
items: [ { sku: "jkl", qty: 45, price: 2 },
{ sku: "abv", qty: 45, price: 1 } ]
},
{
cust_id: "abc456",
ord_date: ISODate("2012-02-02T17:04:11.102Z"),
status: 'B',
price: 20,
items: [ { sku: "jkl", qty: 45, price: 2 },
{ sku: "abv", qty: 45, price: 1 } ]
},
{
cust_id: "abc780",
ord_date: ISODate("2012-02-02T17:04:11.102Z"),
status: 'B',
price: 260,
items: [ { sku: "jkl", qty: 50, price: 2 },
{ sku: "abv", qty: 35, price: 1 } ]
}
])
db.orders.find()
// 1. select count(*) as count from orders
db.orders.aggregate([
{
$group:{
_id:null, // ~별 에 대한 조건이 없으니까.. 그런게 있으면 _id에 조건적어줘야해
count:{$sum:1} // 이건 count한걸 보여줘라~ 하는거
}
}
])
// select sum(price) as total
db.orders.aggregate([
{
$group:{
_id:null,
total:{$sum:"$price"}
}
}
])
// select cust_id, sum(price) as total from orders group by cust_id
db.orders.aggregate([
{
$group:{
_id:"$cust_id",
total:{$sum:"$price"}
}
}
])
// select cust_id, sum(price) as total from orders group by cust_id
// order by total desc
db.orders.aggregate([
{
$group:{
_id:"$cust_id",
total:{$sum:"$price"}
}
}, // 여기까지 group by 였구요 아래부터는 order by 관련 중괄호에요
{
$sort: {total:-1} // -1은 descending 1은 ascending
}
])
// select cust_id, ord_date, sum(price) as total
// from orders group by cust_id, ord_date
db.orders.aggregate([
{
$group:{
_id:{ // select에 붙은 조건이 여러개니까 중괄호 열어줘
cust_id:"$cust_id", // cust_id:이거는 표시명 :"$"붙은건 실제 table에 있는 이름
ord_date:{$dateToString: { format: "%Y-%m-%d", date: "$ord_date" }}
},
total:{$sum:"$price"}
}
}
])
// select cust_id, count(*) from orders group by cust_id
// having count(*) > 1
// 그니까 cust_id가 1개 이상인애들을 모아서 각 몇명인지 보여달라는거잖아?
db.orders.aggregate([
{
$group:{
_id:"$cust_id",
count:{$sum:1}
}
},
{
$match:{count:{$gt:1}}
}
])
// select status, count(*) from orders group by status
db.orders.aggregate([
{
$group:{
_id:"status",
count:{$sum:1}
}
}
])
// select status, sum(price) as total from orders group by status
db.orders.aggregate([
{
$group:{
_id:"status",
total:{$sum:"$price"}
}
}
])
// select cust_id, ord_date, sum(price) as total
// from orders group by cust_id, ord_date
// having total > 250
db.orders.aggregate([
{
$group:{
_id:{ // select에 붙은 조건이 여러개니까 중괄호 열어줘
cust_id:"$cust_id", // cust_id:이거는 표시명 :"$"붙은건 실제 table에 있는 이름
ord_date:{$dateToString: { format: "%Y-%m-%d", date: "$ord_date" }}
},
total:{$sum:"$price"}
}
},
{
$match:{total:{$gt:250}}
}
])
// select cust_id, sum(price) as total from orders
// where status = 'A'
// group by cust_id
db.orders.aggregate([
{
$match:{status:'B'} // match라고 무조건 뒤에 주는건 아니고 where역할이니까 먼저..
},
{
$group:{
_id:"$cust_id",
total:{$sum:"$price"}
}
}
])
// select cust_id, ord_date, sum(price) as total
// from orders where status = 'B'
// group by cust_id, ord_date
db.orders.aggregate([
{
$match:{status:'B'}
},
{
$group:{
_id:{
cust_id:"$cust_id",
ord_date:{$dateToString: { format: "%Y-%m-%d", date: "$ord_date" }},
},
total:{$sum:"$price"}
},
}
])