iOS数据库存储框架FMDB的使用

NSString* sqlPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES)[0]stringByAppendingPathComponent:@"bank.sqlite"];

FMDatabaseQueue* queue = [FMDatabaseQueuedatabaseQueueWithPath:sqlPath];

[queue inDatabase:^(FMDatabase*db) {

[db beginTransaction];

BOOL flag =[db executeUpdate:@"create table if not exists t_bank (id integer primary key auto increment,name string)"];

if(flag) {

NSLog(@"success");

}else

{

NSLog(@"faiure");

[db rollback];

}

BOOL flag1 = [db executeUpdate:@"insert into t_bank (name) values(?);",@"haha"];

if(flag1) {

NSLog(@"success1");

}else

{

NSLog(@"faiure");

[db rollback];

}

FMResultSet* result = [db executeQuery:@"select* from t_bank"];

while([result next]) {

NSString* name = [result stringForColumn:@"name"];

int pid = [result intForColumn:@"id"];

NSLog(@"%d---%@",pid,name);

}

[db commit];

}];