# JDBC

**URL:** https://faq.inetsoftware.de/c/jdbc/8.md

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## [ORA-28040: No matching authentication protocol](https://faq.inetsoftware.de/t/ora-28040-no-matching-authentication-protocol/83)

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**Author:** [@TorstenRietzel](https://faq.inetsoftware.de/u/TorstenRietzel)\
**Replies:** 1\
**Last updated:** [March 21, 2017, 9:41am UTC](https://faq.inetsoftware.de/t/ora-28040-no-matching-authentication-protocol/83 "2017-03-21T09:41:01Z")

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The error "No matching authentication protocol" can occur if try to create connection to an Oracle 12c database. We are planning to support Oracle 12 in a future version of the JDBC driver i-net Oranxo. As workaround…

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## [Login failed for user with exception: java.sql.SQLInvalidAuthorizationSpecException](https://faq.inetsoftware.de/t/login-failed-for-user-with-exception-java-sql-sqlinvalidauthorizationspecexception/254)

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**Author:** [@VolkerBerlin](https://faq.inetsoftware.de/u/VolkerBerlin)\
**Replies:** 0\
**Last updated:** [April 25, 2019, 6:07am UTC](https://faq.inetsoftware.de/t/login-failed-for-user-with-exception-java-sql-sqlinvalidauthorizationspecexception/254 "2019-04-25T06:07:43Z")

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The Windows Authentication with i-net Merlia, the MS SQL JDBC driver, is failing with jdk1.8.0\_181 or newer with the error message: java.sql.SQLInvalidAuthorizationSpecException: \[SERVER\]Login failed for user ''. This …

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## [Performance improvement with i-net SQL Server driver](https://faq.inetsoftware.de/t/performance-improvement-with-i-net-sql-server-driver/38)

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**Author:** [@VolkerBerlin](https://faq.inetsoftware.de/u/VolkerBerlin)\
**Replies:** 1\
**Last updated:** [March 9, 2016, 2:18pm UTC](https://faq.inetsoftware.de/t/performance-improvement-with-i-net-sql-server-driver/38 "2016-03-09T14:18:48Z")

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Why is it that the i-net SQL Server driver seems to be slower than other drivers in my tests?

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## [Which JDBC subprotocol should I use for MS SQL Server?](https://faq.inetsoftware.de/t/which-jdbc-subprotocol-should-i-use-for-ms-sql-server/37)

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**Author:** [@VolkerBerlin](https://faq.inetsoftware.de/u/VolkerBerlin)\
**Replies:** 1\
**Last updated:** [March 9, 2016, 2:00pm UTC](https://faq.inetsoftware.de/t/which-jdbc-subprotocol-should-i-use-for-ms-sql-server/37 "2016-03-09T14:00:37Z")

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There are three subprotocols inetdae6, inetdae7 and inetdea7a. Which should I use?