裝了 MySQL 之後不知道怎麼開始?它能做什麼、該不該用

What's new in this version:

Functionality added or changed:

- CMake configuration support on Linux now provides a boolean ENABLE_GCOV option to control whether to include support for gcov. 
- Client programs now display more information for SSL errors to aid in diagnosis and debugging of connection problems. 
- In the audit plugin interface, the event_class member was removed from the mysql_event_general structure and the calling sequence for the notification function changed. Originally, the second argument was a pointer to the event structure. The function now receives this information as two arguments: an event class number and a pointer to the event. Corresponding to these changes, MYSQL_AUDIT_INTERFACE_VERSION was increased to 0x0300.


Bugs fixed:
- Replication: A mistake in thread cleanup could cause a replication master to crash. 
- Replication: When using row-based replication and attribute promotion or demotion (see Section 15.4.1.6.2, “Replication of Columns Having Different Data Types”), memory allocated internally for conversion of BLOB columns was not freed afterwards. 
- Adding support for Windows authentication to libmysql introduced a link dependency on the system Secur32 library. The Microsoft Visual C++ link information was modified to pull in this library automatically. 
- In some cases, memory allocated for Query_tables_list::sroutines() was not freed properly. 
- After the fix for Bug#11889186, MAKEDATE() arguments with a year part greater than 9999 raised an assertion. 
- An assertion could be raised due to a missing NULL value check in Item_func_round::fix_length_and_dec(). 
- An assertion could be raised during two-phase commits if the binary log was used as the transaction coordinator log.
- A problem introduced in 5.5.11 caused very old (MySQL 4.0) clients to be unable to connect to the server. 
- Using CREATE EVENT IF NOT EXISTS for an event that already existed and was enabled caused multiple instances of the event to run. 
- An embedded client would abort rather than issue an error message if it issued a TEE command (T file_name) and the directory containing the file did not exist. This occurred because the wrong error handler was called. 
- On some platforms, the Incorrect value: xxx for column yyy at row zzz error produced by LOAD DATA INFILE could have an incorrect value of zzz. 
- An attempt to install nonexistent files during installation was corrected. 
- On FreeBSD 64-built builds of the embedded server, exceptions were not prevented from propagating into the embedded application.