The Problem In MySQL, certain words like SELECT, INSERT, DELETE etc. are reserved words. Since they have a special meaning, MySQL treats it as a syntax error whenever you use them as a table name, column name, or other kind of identifier – unless you surround the identifier with backticks. As noted in the official docs, in section 10.2 Schema … Read more
It should be as simple as running this: If the dump is of a single database you may have to add a line at the top of the file: If it was a dump of many databases, the use statements are already in there. To run these commands, open up a command prompt (in Windows) … Read more
On Mac OS X v10.6 (Snow Leopard), starting MySQL gives the following error: The server quit without updating PID file File my.cnf log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid
Looks like the mysql server is not started. Look to the official documentation of MySQL how you can start a service under windows. Install the server as a service using this command: C:> “C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqld” –install
Short answer: Right-click on the class that contains the main method. Click on “Run As”. Click on “Java Application”. The keyboard shortcut is: Shift+Alt+X J (while holding Shift and Alt, press X; then release Shift and Alt and press J). Long answer: To be honest, I am not 100% sure why this problem happens. It might be … Read more
To find the specific error run this: And look in the LATEST FOREIGN KEY ERROR section. The data type for the child column must match the parent column exactly. For example, since medicalhistory.MedicalHistoryID is an INT, Patient.MedicalHistory also needs to be an INT, not a SMALLINT. Also, you should run the query set foreign_key_checks=0 before running the DDL so you can create the tables in an … Read more
MySQL requires that all derived tables and subqueries have an alias. You are missing an alias at the end of the closing parentheses for the subqquery:
i’m looking for a way to export whole database from Pervasive 11, send it and import to MySQL server. I’ve tried to export it to xml file but i had problems with import it to MySQL. Any ideas?
As is, you must delete the row out of the advertisers table before you can delete the row in the jobs table that it references. This: …is actually the opposite to what it should be. As it is, it means that you’d have to have a record in the jobs table before the advertisers. So … Read more
I would recommend using INSERT…ON DUPLICATE KEY UPDATE. If you use INSERT IGNORE, then the row won’t actually be inserted if it results in a duplicate key. But the statement won’t generate an error. It generates a warning instead. These cases include: Inserting a duplicate key in columns with PRIMARY KEY or UNIQUE constraints. Inserting a NULL into a column with … Read more