我创建了一个Postgres用户int r = rand();
if (r < RAND_MAX / 4)
{
// sword - 25% probability
}
else if (r < 3 * RAND_MAX / 4)
{
// knife - 50% probability
}
else
{
// axe - 25% probability
}
，并授予 private static string CreateColumnString(Colors value)
{
// This is how we do it in embedded programming in C
// In C we wouldn't need to convert, but alas in C# we do
// So first ...
var num = Convert.ToByte(value);
// ToUint16 would work as well, but ToByte makes your intentions clearer
// Then bitwise '& 'every bit position you care about to compose your string
// For example: 0b0011 & 0b1111 = 0b0011 (3 AND 15 = 3)
var s = (num & 1) > 0 ? "Red" : "";
s = (num & 2) > 0 ? s + "|Green": s;
return (num & 2) > 0 ? s + "|Blue" : s;
}
的所有权限，当我尝试从数据库中选择一个表时，我收到了一个权限被拒绝错误。
创建user1
user1以user1身份登录
my_db答案 0 :(得分：0)
ALTER DATABASE name OWNER TO new_owner;
您必须将数据库my_db的所有者更改为用户名user1
答案 1 :(得分：0)
我知道这可能要晚了，但是您可能要分配 这是从我的试用中得到的，我能够解决类似的问题。似乎您必须为表函数和序列设置类似的特权，如下所示
GRANT ALL PRIVILEGES ON DATABASE yourdb TO yourusr;
GRANT ALL ON ALL TABLES IN SCHEMA your_schema TO yourusr;
GRANT ALL ON ALL SEQUENCES IN SCHEMA your_schema TO yourusr;
GRANT ALL ON ALL FUNCTIONS IN SCHEMA your_schema TO yourusr;