For MySQL 8+: use the recursive with syntax.For MySQL 5.x: use inline variables, path IDs, or self-joins. MySQL 8+ The value specified in parent_id = 19 should be set to the id of the parent you want to select all the descendants of. MySQL 5.x For MySQL versions that do not support Common Table Expressions (up to version 5.7), you would achieve this with the … Read more
The issue is likely due to socket authentication being enabled for the root user by default when no password is set, during the upgrade to ubuntu 16.04. The solution is to revert back to native password authentication. You can do this by logging in to MySQL using socket authentication by doing: Once logged in: which … Read more
You should try the lower case for the table/column identifiers(like in from/inner join clauses):
The problem is with the way you fetch data in getStuff(). Each time you visit getStuff() you obtain a fresh ResultSet but you don’t close it. This violates the expectation of the Statement class (see here – http://docs.oracle.com/javase/7/docs/api/java/sql/Statement.html): By default, only one ResultSet object per Statement object can be open at the same time. Therefore, if the reading of one ResultSet object is … Read more
Your date format is incorrect, it needs to be in quotes and rearranged slightly. or rather
I had the same problem. I contacted mamp support, and their answer was the following; it worked for me. Hope this helps you too. Stop all servers in MAMP. The below assumes your MAMP installation directory is C:\MAMP\. For MAMP: With Windows Explorer go to folder C:\MAMP\db\mysql\ First backup all files that begin with mysql-bin.*, then delete them … Read more
Technically, to repair your statement, you can add LIMIT 1 to the subquery to ensure that at most 1 row is returned. That would remove the error, your code would still be nonsense. Practically, you want to match rows somehow instead of picking an arbitrary row from the remote table store to update every row of your local table customer.Your rudimentary question … Read more
From the manual found at http://dev.mysql.com/doc/refman/5.7/en/create-table.html You can use the TEMPORARY keyword when creating a table. A TEMPORARY table is visible only to the current session, and is dropped automatically when the session is closed. This means that two different sessions can use the same temporary table name without conflicting with each other or with … Read more
You can do it this way: I don’t understand your date format. Dates should be stored in the database using native date and time types.
It’s easy to do, but hard to remember the correct spelling: If you need 1.2.x versions (legacy Python only), use pip install MySQL-python Note: Some dependencies might have to be in place when running the above command. Some hints on how to install these on various platforms: Ubuntu 14, Ubuntu 16, Debian 8.6 (jessie) Fedora … Read more