FMDB 简单的使用
GitHub链接地址：https://github.com/ccgus/fmdb
需要引入的文件有：
并导入libsqlite2.dylib
View Code
1 1 // Library/Caches 2 2 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES); 3 3 NSString *cachePath = [paths lastObject]; 4 4 NSLog(@"%@", cachePath); 5 5 6 6 // new a database 7 7 NSString *dbPath = [cachePath stringByAppendingPathComponent:@"MyDatabase.db"]; 8 8 FMDatabase *db = [FMDatabase databaseWithPath:dbPath]; 9 9 if (![db open]) { 10 10 NSLog(@"Could not open db."); 11 11 return; 12 12 } 13 13 14 14 // create a table 15 15 // NSLog(@"%d", [db executeUpdate:@"create table PersonList (Name text, Age integer, Sex integer, Phone text, Address text, Photo blob)"]); 16 16 17 17 // insert data 18 18 // NSLog(@"%d", [db executeUpdate:@"insert into PersonList (Name, Age, Sex, Phone, Address, Photo) values (?, ?, ?, ?, ?, ?) ", 19 19 // @"Lawrence", [NSNumber numberWithInt:20],[NSNumber numberWithInt:0], @"091234567", @"Jiangsu, NJ", nil]); 20 20 21 21 // delete data 22 22 // NSLog(@"%d", [db executeUpdate:@"delete from PersonList where name = ?", @"Lawrence"]); 23 23 24 24 // updata data 25 25 // NSLog(@"%d", [db executeUpdate:@"update PersonList set Age = ? where Name = ?", [NSNumber numberWithInt:23], @"Jone"]); 26 26 27 27 // search data 28 28 // FMResultSet *rs = [db executeQuery:@"select Name, Age from PersonList"]; 29 29 // while ([rs next]) { 30 30 // NSString *name = [rs stringForColumn:@"Name"]; 31 31 // int age = [rs intForColumn:@"Age"]; 32 32 // NSLog(@"name = %@, age = %d", name, age); 33 33 // } 34 34 // [rs close]; 35 35 36 36 // NSString *address = [db stringForQuery:@"select Address from PersonList where Name = ?", @"Lawrence"]; 37 37 // 38 38 // int age = [db intForQuery:@"select Age from PersonList where Name = ?", @"Lawrence"]; 39 39 // 40 40 // NSLog(@"address = %@, age = %d", address, age);