mongoexport command isused to export MongoDB Collection data to a CSV or JSON file. By default, the mongoexport command connects to mongod instance running on the localhost port number 27017. Field_name(s) - Nam
On the other hand, NoSQL does not have a standardized query language like SQL. Each NoSQL database has its own specific query language, depending on its data model and design. NoSQL leverages data formats like JSON, XML and YML to support unstructured data. NoSQL is a more flexible langu...
Scenarios that are worth considering before deploying MongoDB, leading you to the decision of when you should and should not use it.
I’m trying to build a report based on data stored on local MongoDB database, with the ODBC connector. But I’ve got the following error : DataSource.Error: ODBC: ERROR [HY000] [MySQL][ODBC 1.0(a) Driver][mysqld-5.7.12 mongosqld v2.5.0]Unknown database '' Details: Data...
Dive deep into Common Table Expressions (CTEs) and their power. Simplify complex queries and boost your SQL efficiency. Start mastering CTEs today!
You should use this article as a starting place for troubleshooting slow or expensive queries in Azure Cosmos DB's API for MongoDB. If you are using the Azure Cosmos DB for NoSQL, see the API for NoSQL query troubleshooting guide article....
com.mongodb.spark.exceptions.MongoTypeConversionException: Cannot cast STRING into a DoubleType (value: BsonString{value='XX,XXX'}) at com.mongodb.spark.sql.MapFunctions$.convertToDataType(MapFunctions.scala:214) at com.mongodb.spark.sql.MapFunctions$.$anonfun$documentToRow$1(MapFunctions.scala...
http://www.engineyard.com/blog/2009/cassandra-and-ruby-a-love-affair/ (facebook & reddit use this) http://www.engineyard.com/blog/2009/key-value-stores-for-ruby-part-4-to-redis-or-not-to-redis/ http://www.engineyard.com/blog/2009/mongodb-a-light-in-the-darkness-key-value-stores...
Then compared it to the actual IO being done by the server using the pt-diskstats tool from the excellent Percona Toolkit. Note that, when doing this analysis, I had already stopped the slave SQL thread and made sure that there were no dirty InnoDB pages, otherwise my analysis would have...
Describe the bug Normal match queries work without problem, but when using the $regex operators in dashboards, the query fails (misteriously it works on filters in the questions) Logs ``` metabase_mongo | 2023-04-15 16:24:36,388 ERROR mi...