One easy trick that can help with most deadlocks is sorting the operations in a specific order. You get a deadlock when two transactions are trying to lock two locks at opposite orders, ie: connection 1: locks key(1), locks key(2); connection 2: locks key(2), locks key(1); If both run at the same time, connection 1 … Read more
The proper way to do this is to use multiple tables and JOIN them in your queries. For example: The person_fruit table contains one row for each fruit a person is associated with and effectively links the person and fruits tables together, I.E. When you want to retrieve a person and all of their fruit … Read more
Check the manual for mysql_fetch_object(). It returns an object, not an array of objects. I’m guessing you want something like this Might I suggest you have a look at PDO. PDOStatement::fetchAll(PDO::FETCH_OBJ) does what you assumed mysql_fetch_object() to do
As you are creating a database from scratch, you could use: Here is an identical scenario.
for some reason, the ODBC user is the default username under windows even if you didn’t create that user at setup time. simply typing without specifying a username will attempt to connect with the non-existent ODBC username, and give: Error 1045 (28000): Access denied for user ‘ODBC’@’localhost’ (using password: NO) Instead, try specifying a username … Read more
If you get Commands out of sync; you can’t run this command now in your client code, you are calling client functions in the wrong order. This can happen, for example, if you are using mysql_use_result() and try to execute a new query before you have called mysql_free_result(). It can also happen if you try to … Read more
No, JavaScript can not directly connect to MySQL. But you can mix JS with PHP to do so. JavaScript is a client-side language and your MySQL database is going to be running on a server
You can actually do this one of two ways: MySQL update join syntax: ANSI SQL syntax: Pick whichever one seems most natural to you.
The value 3172978990 is greater than 2147483647 – the maximum value for INT – hence the error. MySQL integer types and their ranges are listed here. Also note that the (10) in INT(10) does not define the “size” of an integer. It specifies the display width of the column. This information is advisory only. To fix the error, change your datatype to VARCHAR. Phone and … Read more