Denodo community Q&A RSS feed Latest Denodo community questions Custom MetaModel 2024-05-22T21:12:50Z 2024-05-22T21:12:50Z Is it possible to create custom attributes on entities and attributes... otherwise known as a custom metamodel? 2024-05-22T21:12:50Z Denodo + HikariPool 2024-05-22T14:53:31Z 2024-05-22T14:53:31Z Hi there! I'm trying to create hikari DataSource with Denodo driver: ``` @Bean DataSource dataSourceDenodo() throws ClassNotFoundException { HikariDataSource dataSource = new HikariDataSource(); dataSource.setDriverClassName("com.denodo.vdp.jdbc.Driver"); dataSource.setJdbcUrl(env.getProperty("denodo.jdbcUrl")); dataSource.setUsername(env.getProperty("denodo.userName")); dataSource.setPassword(env.getProperty("denodo.password")); dataSource.setMaximumPoolSize(30); dataSource.setPoolName("denodo"); return dataSource; } ``` I have denodo-driver jar file in my project, and I've tried different versions from your website. For some reason I'm getting next message: > com.zaxxer.hikari.util.DriverDataSource - Registered driver with driverClassName=com.denodo.vdp.jdbc.Driver was not found, trying direct instantiation. > com.zaxxer.hikari.pool.PoolBase - denodo - Driver does not support get/set network timeout for connections. (null) > com.zaxxer.hikari.pool.HikariPool - denodo - Added connection com.denodo.vdb.jdbcdriver.VDBJDBCConnection@4cad7e97 I saw simillar question, and tried to put ```Class.forName("com.denodo.vdp.jdbc.Driver");``` in the method but this doesn't help. I'm trying to understand this because when I'm trying to query to Denodo, it's only works for the first call, if I'm trying to call second time with the same query I'm getting: > Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: denodo - Connection is not available, request timed out after 30241ms. Please advise, thanks in advance! 2024-05-22T14:53:31Z Virtual DataPort using a JDBC data source. 2024-05-22T12:34:43Z 2024-05-22T12:34:43Z . We have a company database which we can connect to from Virtual DataPort using a JDBC data source. Everything works fine, but we have detected a problem when using the function 'LOWER' in Virtual DataPort (the 'UPPER' function works correctly) when querying views over that data source. What should we modify in Virtual DataPort as a workaround for this problem? 2024-05-22T12:34:43Z How to escape special character in username field 2024-05-20T10:29:26Z 2024-05-20T10:29:26Z I'm setting up a JDBC connection to an Azure SQL database server. The problem I'm getting is when I enter the username which is in the format of an email address, then the @ character is interpreted by the JDBC connector as an indicator for the Hostname. How do I escape this character entered into the username field? ANSWER: I had to add authentication=ActiveDirectoryPassword to the connection string. 2024-05-20T10:29:26Z Could not open denodo web design studio 2024-05-20T06:29:57Z 2024-05-20T06:29:57Z Hi , my denodo design studio could not open after pressing the start button, only could open the VDP server , the rest cant.... 2024-05-20T06:29:57Z Connect DataHub as a datasource in Denodo 2024-05-17T14:05:10Z 2024-05-17T14:05:10Z Hi, Please advise on the steps to connect DataHub ( as a datasource in Denodo. Thank you! 2024-05-17T14:05:10Z OAuth 2.0 API connection Issue 2024-05-17T10:39:25Z 2024-05-17T10:39:25Z I have a GET URL, It was working fine with postman. When I trying to connect this Rest API to Denodo I have facing an error. like **Unable to establish connection: Connection refused** The Authentication type is OAuth 2.0 Authentication grant - Client credential grant Authentication method used by the authorization servers - Send client credentials using the HTTP Basic authentication scheme I mentioned Client ID, Client Secret, Access token, Token endpoint URL. As well as HTTP Headers also. 2024-05-17T10:39:25Z MFA 2024-05-16T21:27:43Z 2024-05-16T21:27:43Z How do you setup the data source to use MFA authentication? 2024-05-16T21:27:43Z RedHat 9 and Denodo Driver 8.0 2024-05-13T12:17:03Z 2024-05-13T12:17:03Z i have problem with that, in R studio show in error for Denodo: Error: nanodbc/nanodbc.cpp:1135: 00000: received invalid response to GSSAPI negotiation: R 2024-05-13T12:17:03Z Import Materialized View Data Lineage in Denodo 2024-05-09T22:41:46Z 2024-05-09T22:41:46Z We would like to import an Oracle MV dependencies into Denodo, do we have an design option here Below will give all the underlying references of the MV, and we wanted to import those underlying tables/views and associate to the final view, so that we have a tree view. Please advise a optimal auotmated design for this? ``` SELECT * FROM dba_dependencies WHERE owner = 'dts' AND name = 'CAT_MV'; ``` 2024-05-09T22:41:46Z