8 commits

Author	SHA1	Message	Date
Kijin Sung	98bf9e485c	Implement isTableExists() and fix return types of prepare(), query(), etc.	2020-06-29 22:46:38 +09:00
Kijin Sung	1903deee40	Fix condition for recording backtraces	2020-06-29 22:37:48 +09:00
Kijin Sung	902b931b89	Provide methods to tell total elapsed time	2020-06-29 22:30:48 +09:00
Kijin Sung	421199b196	Improve debugging	2020-06-29 22:27:45 +09:00
Kijin Sung	84a7b915b7	Implement the COUNT(*) query for pagination	2020-06-29 21:32:25 +09:00
Kijin Sung	7e96affa1a	Add prepare() and query() for direct querying	2020-06-29 20:11:04 +09:00
Kijin Sung	8f746af45f	Implement more methods for DB class	2020-06-29 17:00:04 +09:00
Kijin Sung	cc271ee154	Initial implementation of DB class based on PDO MySQL driver	2020-06-29 15:45:01 +09:00