Question : I get the following error on my MySQL database Cant unlock file (Errcode: 11) But this error only […]
Tag: errors
Timeout expired error. Is it because of a query or server settings?
Question : I am getting SQL Server timeout error in my production server, every hour (~ for 5 minutes or […]
What is the HY number (HY000) in MySQL Error messages?
Question : When I get an error some of them have an HY code, ERROR 2002 (HY000): Can’t connect to […]
How do I identify the source of the 17886 errors (“server will drop the connection”) in my SQL errorlog?
Question : I have a SQL 2012 server that is throwing the following error every 5 minutes or so: Error: […]
Which error codes are safe for `slave_skip_errors` with MySQL Innodb
Question : Does anyone know which error codes are safe to ignore during replication, meaning the slave will remain consistent […]
PostgreSQL invalid frontend message type 74
Question : Error invalid frontend message type 74 I’m getting this error and I have no idea where it’s coming […]
Should I turn off GTID to fix this error?
Question : Recently, a query has started failing. It is a query in the Magento software core (not a module) […]
Union query and group by on Sql Server
Question : I have two queries with a union, my problem is group articles for Codice then added Quantità and […]
mySQL – Cannot add Foreign Key Constraint [closed]
Question : Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the […]
Why does adding a WHERE clause break my working query, with error “Query processor could not produce a query plan because of the hints defined…”?
Question : I have the following (stupidly-simplified) query that leverages two CTEs that refer to the same table and joins […]