大致:
1弄捕、INSERT (INTO)
BOOL success = [self.db executeUpdate:@"INSERT INTO t_student(score, name) VALUES (?, ?);", @(20), @"Jack"];```
2十电、DELETE (FROM)
3棍掐、UPDATE (表名 空格 SET)
4蔚携、SELECT (* FROM 表名 WHERE)
FMResultSet *set = [self.db executeQuery:@"SELECT id, name, score FROM t_student;"];
* SET : 指定某個字段 (用于更新)
* WHERE : 選擇范圍
* AND: 和
https://github.com/ccgus/fmdb