如何查看以下FMDatabase executeUpdate语句的成功？

Question

以下代码不会给出任何错误，但不会执行插入操作，我无法弄清楚原因。我仍然是一个新手，想知道查看此查询结果的最佳方法或查看是否有错误消息。我确定它的东西很简单，比如“BOOL success = [database executeUpdate ...]然后打印BOOL。先谢谢。

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Answer 1

executeUpdate方法有返回值而FMDatabase已保存lastErrorMessage：

BOOL isSuccessful = [database executeUpdate:@"insert into CONDITION (condition_id, condition_name, condition_detail, condition_area, condition_date, active) values(?, ?, ?, ?, ?)",
    [NSNumber numberWithInt:self.condition_id], self.condition_name, self.condition_detail, self.condition_area, self.condition_date, [NSNumber numberWithInt:myInt] ];
if (!isSuccessful) {
    NSLog(@"%@", database.lastErrorMessage);
}