8.0.16 InnoDB InnoDB lower/lower utf8mb4_0900_ai_ci utf8_general_ci utf8mb4_0900_ai_ci utf8mb4_0900_ai_ci utf8_general_ci utf8mb4_0900_ai_ci utf8mb4_0900_ai_ci utf8mb4_0900_ai_ci utf8mb4_0900_ai_ci 1 utf8_general_ci utf8mb4_0900_ai_ci armscii8 0 armscii8 1 ascii 0 ascii 1 big5 0 big5 1 binary 1 cp1250 0 cp1250 0 cp1250 0 cp1250 1 cp1250 0 cp1251 0 cp1251 0 cp1251 1 cp1251 0 cp1251 0 cp1256 0 cp1256 1 cp1257 0 cp1257 1 cp1257 0 cp850 0 cp850 1 cp852 0 cp852 1 cp866 0 cp866 1 cp932 0 cp932 1 dec8 0 dec8 1 eucjpms 0 eucjpms 1 euckr 0 euckr 1 gb18030 0 gb18030 1 gb18030 0 gb2312 0 gb2312 1 gbk 0 gbk 1 geostd8 0 geostd8 1 greek 0 greek 1 hebrew 0 hebrew 1 hp8 0 hp8 1 keybcs2 0 keybcs2 1 koi8r 0 koi8r 1 koi8u 0 koi8u 1 latin1 0 latin1 0 latin1 0 latin1 0 latin1 0 latin1 0 latin1 0 latin1 1 latin2 0 latin2 0 latin2 0 latin2 1 latin2 0 latin5 0 latin5 1 latin7 0 latin7 0 latin7 1 latin7 0 macce 0 macce 1 macroman 0 macroman 1 sjis 0 sjis 1 swe7 0 swe7 1 tis620 0 tis620 1 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 1 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ucs2 0 ujis 0 ujis 1 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 1 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16 0 utf16le 0 utf16le 1 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 1 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf32 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 1 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8 0 utf8mb4 1 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4 0 utf8mb4_0900_ai_ci MEMORY gb2312_chinese_ci 1 int(11)|0s 1 normal 2 varchar(45)|0s normal utf8mb4_0900_ai_ci 3 float|0s normal 4 varchar(45)|0s normal utf8mb4_0900_ai_ci 5 varchar(50)|0s normal utf8mb4_0900_ai_ci 6 int(11)|0s normal 1 bookId 1 1 int(11)|0s 1 1 normal 2 int(11)|0s normal 3 int(11)|0s normal 4 int(11)|0s 1 normal 1 orderId 1 1 int(11)|0s 1 normal 2 int(11)|0s normal 3 int(11)|0s normal 4 int(11)|0s 1 1 normal 1 itemid 1 1 varchar(45)|0s 1 normal utf8mb4_0900_ai_ci 2 varchar(20)|0s 1 normal utf8mb4_0900_ai_ci 3 varchar(20)|0s normal utf8mb4_0900_ai_ci 4 varchar(4)|0s normal utf8mb4_0900_ai_ci 5 int(11)|0s 1 1 normal username 1 btree userID 1 btree 1 userID 1 username username_UNIQUE userID userID_UNIQUE