DELIMITER $$DROP FUNCTION IF EXISTS value_of_bit_index_is_true$$/*计算某个数字的某些索引的位的值是否都为1,索引类似1,2,3,4*/CREATE FUNCTION value_of_bit_index_is_true(number INT, idxies VARCHAR(50)) RETURNS INT(11)BEGIN/*将1,2,3,4,5,6这样的字符串…
mysql Innodb在发生意外宕机,重启之后,要经历哪些过程,以下是详细过程。• Tablespace discoveryTablespace discovery is the process that InnoDB uses to identify tablespaces that require redo log application. See Tablespace Discov…