Works for MySql version < 5.7.3 Look for the Section – We can use INFORMATION_SCHEMA Tables. Useful Queries To check about all the locks transactions are waiting for: A list of blocking transactions: OR A List of locks on particular table: A list of transactions waiting for locks: Reference – MySQL Troubleshooting: What To Do When Queries Don’t Work, … Read more
Sometimes Access denied Exception Error because your mysql credentials are invalid. Secondly, from my experience i observed that this also happens because you did not set password to your database connectivity. eg } Try and set password to your database connectivity. I had such experience and after changing my Collation to utf8_general_ci on the Operations … Read more
The MySQL documentation you cite actually says a little bit more than you mention. It also says, A “’” inside a string quoted with “’” may be written as “””. (Also, you linked to the MySQL 5.0 version of Table 8.1. Special Character Escape Sequences, and the current version is 5.6 — but the current Table 8.1. Special Character … Read more
First check if it’s a workbench or connection problem. 1) In your windows run ‘cmd’ to open a terminal Try both 2a) mysql -u root -p -h 127.0.0.1 -P 3306 2b) mysql -u root -p -h > localhost -P 3306 3) If the connection is good you will get a password prompt, see if you can connect … Read more
You can use STR_TO_DATE() to convert your strings to MySQL date values and ORDER BY the result: However, you would be wise to convert the column to the DATE data type instead of using strings.
Probably somewhere you have DBconnection->close(); and then some queries try to execute . Hint: It’s sometimes mistake to insert …->close(); in __destruct() (because __destruct is event, after which there will be a need for execution of queries)
Instead of COALESCE(a.addressid,0) AS addressexists, use CASE: or the simpler: This works because TRUE is displayed as 1 in MySQL and FALSE as 0.
Is it possible to convert from MySQL to SQLite with a free tool on windows?
After restarting MAMP, I noticed the MySQL Server checkbox didn’t turn green as it usually does. I clicked ‘Start Servers’ again and got a message stating, “Apache couldn’t be started because port 8888 is in use by some other software.” Weird since I haven’t made any changes to the system or application, or installed any … Read more
201 Use LIKE BINARY: