couchdb

问题 I'm new to Node and CouchDb and I'm trying to get my hands on it. I'm struggling to make a piece of code to work. I would like to create a table users , insert a new user and 'at the same time' getting another user. I'm getting this error when starting up node app.js : antoine@ubuntu:~/projects/couchDb$ node app.js Database users exists. {"error":"conflict","reason":"Document update conflict."} Leaving saveDoc events.js:48 throw arguments[1]; // Unhandled 'error' event ^ Error: socket hang up

问题 In a question on CouchDB I asked previously (Can you implement document joins using CouchDB 2.0 'Mango'?), the answer mentioned creating domain objects instead of storing relational data in Couch. My use case, however, is not necessarily to store relational data in Couch but to flatten relational data. For example, I have the entity of Invoice that I collect from several suppliers. So I have two different schemas for that entity. So I might end up with 2 docs in Couch that look like this: {

问题 In a question on CouchDB I asked previously (Can you implement document joins using CouchDB 2.0 'Mango'?), the answer mentioned creating domain objects instead of storing relational data in Couch. My use case, however, is not necessarily to store relational data in Couch but to flatten relational data. For example, I have the entity of Invoice that I collect from several suppliers. So I have two different schemas for that entity. So I might end up with 2 docs in Couch that look like this: {

问题 This is follow up from this question How to merge objects attributes from reduce to rereduce function in CouchDB I've been following the accepted answer from the previous question. For quick review, this is my JSON schema: {"emp_no": .., "salary": .., "from_date": .., "to_date": .., "type" : "salaries"} {"emp_no": .., "title": .., "from_date": .., "to_date" : .., "type" : "titles"} I want to find out the average salaries for each active titles (denoted by "from_date" = "9999-01-01"). Since

问题 I am new to couchDB but have a good experience working with relational databases. Can anyone tell how to connect to couchDB database and retrieve the data stored in it. I am giving an example in relational database and i need help regarding how to do similar task in couchDB.In mysql we use a connector to get connected to the database and the for example we give "select username from tablename where password="abc" ". 回答1: CouchDB talks HTTP and JSON, then you can use any HTTP client and JSON

问题 I am trying to push data from my couchdb server to a touchdb app (grocery-sync sample) running on an android x86 vm. The replication with the app works normally where the app does the pulling and pushing. I am unable to push from the server to the touch db client. When I try I get the following error: {"error":"db_not_found","reason":"couldnotopenhttp://192.168.100.101/grocery-sync/"}. Any assistance will be appreciated. Thanks. 回答1: You almost certainly do not want to do this. You should

问题 I have Documents they have this structure: {id: ####, rev: ####, "Cam_name": "Camera SX", "colour": "white", "manufacturer": "Sony", "rec_limit": 180, "Customer": ["Mike","Ann","James"] } {id: ####, rev: ####, "Cam_name": "PXSV CAM", "colour": "white", "manufacturer": "LG", "rec_limit": 144, "Customer": ["Mike","Oliver","Mr. Rain"] } {id: ####, rev: ####, "Cam_name": "LxSV Double", "colour": "white", "manufacturer": "Phillips", "rec_limit": 160, "Customer": ["Mike"] } And i want to make an

问题 Iam new to couchdb.I want to know whether wild card search is possible in couchdb or not.if it is possible give me sample example for that. 回答1: Yes, the {} (empty object) is a wild card in couch db. For example: http://127.0.0.1:5984/database/_design/docName/_view/viewName?key={} Will return everything. You can also use {} in startkey and endkey and anywhere else you want a wildcard. It will match all keys. 来源： https://stackoverflow.com/questions/24926684/wild-card-search-in-couchdb

问题 After I installed couchdb， I could get the welcome information $ curl localhost:5984 {"couchdb":"Welcome","version":"2.1.2","features":["scheduler"],"vendor":{"name":"The Apache Software Foundation"}} But I can't check the status by systemctl $ systemctl status couchdb.service ● couchdb.service Loaded: not-found (Reason: No such file or directory) Active: failed (Result: start-limit-hit) since 一 2018-12-03 14:52:14 CST; 6min ago Main PID: 30946 (code=killed, signal=USR2) 12月 03 14:52:14

问题 After I installed couchdb， I could get the welcome information $ curl localhost:5984 {"couchdb":"Welcome","version":"2.1.2","features":["scheduler"],"vendor":{"name":"The Apache Software Foundation"}} But I can't check the status by systemctl $ systemctl status couchdb.service ● couchdb.service Loaded: not-found (Reason: No such file or directory) Active: failed (Result: start-limit-hit) since 一 2018-12-03 14:52:14 CST; 6min ago Main PID: 30946 (code=killed, signal=USR2) 12月 03 14:52:14