Use the following query: The RENAME function is used in Oracle databases. @lad2025 mentions it below, but I thought it’d be nice to add what he said. Thank you @lad2025! You can use the RENAME COLUMN in MySQL 8.0 to rename any column you need renamed. ALTER TABLE Syntax: RENAME COLUMN: Can change a column name but not its definition. More … 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
You don’t need to restart your windows. The easiest way to achieve this is Go to <Extracted folder location>/bin/ Run mysqld (service) close the cmd prompt Run mysql.exe or the better way to do is add the location to PATH environment Variable
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
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
Some systems like Ubuntu, MySQL is using the UNIX auth_socket plugin by default. Basically it means that: db_users using it, will be “authenticated” by the system user credentials. You can see if your root user is set up like this by doing the following: As you can see in the query, the root user is using the auth_socket plugin. There are two ways to solve this: … Read more
You don’t need to restart your windows. The easiest way to achieve this is Go to <Extracted folder location>/bin/ Run mysqld (service) close the cmd prompt Run mysql.exe or the better way to do is add the location to PATH environment Variable
You need to consider that GROUP BY happens after the WHERE clause conditions have been evaluated. And the WHERE clause always considers only one row, meaning that in your query, the meta_key conditions will always prevent any records from being selected, since one column cannot have multiple values for one row. And what about the redundant meta_value checks? If a value is allowed to … Read more
For MySQL 5.0.3 and higher, you can use BIT. The manual says: As of MySQL 5.0.3, the BIT data type is used to store bit-field values. A type of BIT(M) enables storage of M-bit values. M can range from 1 to 64. Otherwise, according to the MySQL manual you can use BOOL or BOOLEAN, which are at the moment … Read more
It may be easier to check if the connection and re-establish it if needed. See PHP:mysqli_ping for info on that.