n1ql

问题 I have just started learning Couchbase . I am trying to write a basic query using java sdk but I am not able to understand how to write it. Below is the query: SELECT * FROM users_with_orders usr JOIN orders_with_users orders ON KEYS ARRAY s.order_id FOR s IN usr.shipped_order_history END This is for joining without array: LetPath path = select("*,META(usr).id as _ID,META(usr).cas as _CAS).from(bucketName +" usr").join(bucketname +" orders").onKeys("usr.order_id) How should I proceed with the

问题 I have just started learning Couchbase . I am trying to write a basic query using java sdk but I am not able to understand how to write it. Below is the query: SELECT * FROM users_with_orders usr JOIN orders_with_users orders ON KEYS ARRAY s.order_id FOR s IN usr.shipped_order_history END This is for joining without array: LetPath path = select("*,META(usr).id as _ID,META(usr).cas as _CAS).from(bucketName +" usr").join(bucketname +" orders").onKeys("usr.order_id) How should I proceed with the

问题 I want to query (or index) an array-valued field. As an example, say I want to retrieve this document { "myarray": [ 1, 2, 3]} . I can do this with ANY...SATISFIES or with UNNEST . From the documentation, these seem functionally the same. SELECT * FROM `bucket` AND ANY v in myarray SATISFIES v=3 END; SELECT * FROM `bucket` UNNEST myarray v WHERE v=3 What are the use cases for each? 回答1: For those two queries, they do similar things, but both of these approaches provide other functionality.

来源： https://stackoverflow.com/questions/39911282/how-to-sort-in-array-of-object-couchbase

问题 We are having problems with a couchbase N1QL Query. We have an index defined as follows: CREATE INDEX `AppUser_SubjectId3` ON `Portal`(`SubjectId`) WHERE ((meta(self).`id`) like `AppUser%`) We are then trying to run the following query: SELECT RAW `Extent1` FROM `Portal` as `Extent1` USE INDEX (`AppUser_SubjectId3` USING GSI) WHERE (`Extent1`.`SubjectId` = 'c8ea08231c3a985a06342355b87d6e2d6290a985d5c3592e5b8e5e5f14608a08') And get the following error: No index available on keyspace Portal

问题 In my Spring-Boot app we have a Spring-Data repository connection to the Couchbase server. I know that when connecting to SQL server, one can see the actual queries sent to the DB by adding to the property file line such as this one (As mentioned here): logging.level.org.hibernate.SQL=DEBUG What should be the way to do it when using Couchbase? 回答1: Add logback as your dependency <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.2.3</version> <

问题 Our Spring Boot app is using a Couchbase DB and accessing it using Spring-Data To delete records from the bucket we created the following method in the repository: Slice<Dog> deleteAllByOwnerIdAndName(String ownerId, String name, Pageable pageable); We also have relevant index on the bucket: CREATE INDEX `dogs_by_ownerId_and_name_idx` ON `dogs`(`ownerId`,`name`) WHERE (`_class` = "com.example.Dog") Our code is using the pagination when trying to delete the elements: Slice<Dog> dogsSlice =

问题 Our Spring Boot app is using a Couchbase DB and accessing it using Spring-Data To delete records from the bucket we created the following method in the repository: Slice<Dog> deleteAllByOwnerIdAndName(String ownerId, String name, Pageable pageable); We also have relevant index on the bucket: CREATE INDEX `dogs_by_ownerId_and_name_idx` ON `dogs`(`ownerId`,`name`) WHERE (`_class` = "com.example.Dog") Our code is using the pagination when trying to delete the elements: Slice<Dog> dogsSlice =

问题 I've been testing Couchbase 5 and created a bucket called fp-conversion-data which has some JSON data in it. I have been trying to run some simple queries such as: SELECT * FROM fp-conversion-data limit 5; Instead of getting the expected results, I keep getting this error: [ { "code": 4010, "msg": "FROM expression term must have a name or alias", "query_from_user": "SELECT * FROM fp-conversion-data limit 5;" } ] 回答1: I think the problem is that you have dashes in the name of the bucket. Use

问题 Using com.couchbase.client, java-client version 2.2.7 I have been unable to get a n1ql query working that uses an IN statement with multiple items see my example query and java code below public int getCountForDuration(Long startTime, Long endTime, String ids){ JsonObject placeHolders = JsonObject.create().put("ids", ids).put("startTime", startTime).put("endTime", endTime); N1qlQuery query = N1qlQuery.parameterized(COUNT_STATEMENT, placeHolders) N1qlQueryResult result = bucket.query(query); .