数据库，用sql server完成如下操作： a. 检索面板类型为“MVA”的显示器的型号、屏幕尺寸和报价。 b. 检索只有一个经销商报价的显示器型号。 c. 在product表中插入一条显示器信息：型号为“三星 S22B360HW”,屏幕尺寸为“22”，面板类型为“TN” d. 从表distributor中删除没有任何报价的经销商信息。 e. 检索 “世纪蓝博”和“华人方创”都有报价的显示器型号 f. 检索对飞利浦的所有型号都有报价的经销商

好的，以下是针对这些问题的 SQL Server 的操作：

a.

SELECT Model, ScreenSize, Price 
FROM Monitor
WHERE PanelType = 'MVA';

b.

SELECT Model 
FROM Monitor
GROUP BY Model
HAVING COUNT(*) = 1;

c.

INSERT INTO Monitor (Model, ScreenSize, PanelType)
VALUES ('三星 S22B360HW', 22, 'TN');

d.

DELETE FROM Distributor
WHERE NOT EXISTS (
    SELECT * 
    FROM Monitor 
    WHERE Distributor.DistID = Monitor.DistID
);

e.

SELECT Model 
FROM (
    SELECT Model, COUNT(*) AS DistCount
    FROM Monitor
    WHERE DistName IN ('世纪蓝博', '华人方创')
    GROUP BY Model
) M
WHERE M.DistCount = 2;

f.

SELECT DistName
FROM (
    SELECT DistName, COUNT(*) AS ModelCount
    FROM Monitor M
    INNER JOIN Distributor D
      ON M.DistID = D.DistID
    WHERE M.Model IN (
        SELECT Model
        FROM Monitor
        WHERE Brand = '飞利浦'
    )
    GROUP BY DistName
) D
WHERE D.ModelCount = (
    SELECT COUNT(*) 
    FROM Monitor
    WHERE Brand = '飞利浦'
);

需要注意的是，这些代码只是一个大概的思路，具体实现可能需要根据实际情况进行修改和优化。