iphone - 使用 FMDB 插入表失败

Question

我试图在应用程序 didFinishLaunchingWithOptions 的 AppDelegate 中的数据库中插入一些值，但是每次它都无法插入数据。

代码

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsPath = [paths objectAtIndex:0];
NSString *path = [docsPath stringByAppendingPathComponent:@"db.sqlite"];
FMDatabase *database = [FMDatabase databaseWithPath:path];
[database open];
FMResultSet *results = [database executeQuery:@"select * from settings"];
if(results == nil)
{
 NSLog(@"Creating DB");
 [database beginTransaction];
 [database executeUpdate:@"create table settings(id int primary key, defaultaction text, beepsound text, vibrateeffect text, level text)"];
 NSString *query = [NSString stringWithFormat:@"insert into settings(id,defaultaction,beepsound,vibrateeffect,level) values (%d, '%@', '%@','%@','%@',)",11,@"auto", @"YES", @"YES", @"HIGH"];
 NSLog(@" %@",path);
 BOOL y= [database executeUpdate:query];
 if (!y)
 {
 NSLog(@"insert failed!!");
 }

 [database commit];
 [database close];


 }

Answer 1

我认为问题出在您的插入查询代码中

NSString *query = [NSString stringWithFormat:@"insert into settings(id,defaultaction,beepsound,vibrateeffect,level) values (%d, '%@', '%@','%@','%@',)",11,@"auto", @"YES", @"YES", @"HIGH"];

你又加了一个，最后在values()里最后检查去掉，肯定可以的

NSString *query = [NSString stringWithFormat:@"insert into settings(id,defaultaction,beepsound,vibrateeffect,level) values (%d, '%@', '%@','%@','%@')",11,@"auto", @"YES", @"YES", @"HIGH"];

试试这个查询