Question

我正在尝试通过密钥加密数据并将其解密。这里是SQL语句的列表：

CREATE CERTIFICATE Shipping04
   ENCRYPTION BY PASSWORD = 'pGFD4bb925DGvbd2439587y'
   WITH SUBJECT = 'Sammamish Shipping Records',
   EXPIRY_DATE = '20201031';
GO

CREATE SYMMETRIC KEY JanainaKey09
    WITH ALGORITHM = AES_256
    ENCRYPTION BY CERTIFICATE Shipping04;
GO

CREATE TABLE MyTable
(
      my_col VARBINARY(68)
)
GO

INSERT INTO MyTable (my_col) VALUES (NULL);

OPEN SYMMETRIC KEY [JanainaKey09]
DECRYPTION BY CERTIFICATE [Shipping04] 
           WITH PASSWORD = 'pGFD4bb925DGvbd2439587y';

UPDATE MyTable 
SET my_col = ENCRYPTBYKEY(KEY_GUID('JanainaKey09'), CONVERT(VARBINARY(8), 0))

一切正常：我得到了一个包含加密数据的表，可以从MyTable表中选择一个值。但是当我尝试：

OPEN SYMMETRIC KEY [JanainaKey09]
DECRYPTION BY CERTIFICATE [Shipping04] 
           WITH PASSWORD = 'pGFD4bb925DGvbd2439587y';

SELECT CONVERT(numeric, DECRYPTBYKEY(my_col)) AS balace, * 
FROM MyTable;

我遇到错误

SqlState 24000，无效的游标状态

当我替换numeric-> "BIGINT"时

'BIGINT'附近的语法不正确：（

怎么了？如何正确解密SQL Server中的值？

MS SQL Server中的数据解密期间如何修复SqlState 24000？

0 个答案: