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被映射到SQL Server 登录名、证书或非对称密钥的用户名不能包含反斜杠字符 (\)。 更改用户名需要具有 ALTER ANY USER 权限。 更改用户的目标登录名需要对数据库拥有 CONTROL 权限。 若要更改对数据库拥有 CONTROL 权限的用户名名称,则需要对数据库拥有 CONTROL 权限。 更改默认架构或语言需要对用户拥有 ALTER 权限。
declare@变量1[as]datatype=value,@变量2[as]datatype=value... ②select赋值语句,其语法格式为: select@变量1=表达式1,@变量2=表达式2... 用select命令可以一次给多个变量赋值 表达式可以为普通的value,也可以为查询结果 当表达式为表的列名时,形式与普通查询中使用列别名的用法类似。可以使用子查询从表中一次...
When false, an application must process or cancel all result sets from one batch before it can execute any other batch on that connection, used by recommended version. Type: Boolean (or Expression with resultType boolean). Parameters: multipleActiveResultSets - the multipleActiveResultSets value ...
READONLY is required for user-defined table type parameters (TVPs), and can't be used for any other parameter type. return_data_type The return value of a scalar user-defined function. For Transact-SQL functions, all data types, including CLR user-defined types, are allowed except the ...
ints[i]= BitConverter.ToInt32(value,1+ i *4);varsqlDecimal =newSystem.Data.SqlTypes.SqlDecimal(precision, scale, Convert.ToBoolean(value[0]), ints);//This will fail for any SQL Server decimal values exceeding the max value of a C# decimal.//Might want to return raw bytes at some ...
1 --打开xp_cmdshell功能 2 EXEC [sys].[sp_configure] @configname = 'xp_cmdshell', -- varchar(35) 3 @configvalue = 1 -- int 4 RECONFIGURE WITH override 5 6 7 --修改注册表,修改身份验证为混合验证方式 8 USE [master] 9 GO10 EXEC xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'Soft...
--恢复数据,不加时间段条件 参数:数据库名,表名--EXAMPLE #1 : FOR ALL DELETED RECORDS EXEC Recover_Deleted_Data_Proc 'test','dbo.aa' GO --恢复数据,加时间段条件 --EXAMPLE #2 : FOR ANY SPECIFIC DATE RANGE EXEC Recover_Deleted_Data_Proc 'test','dbo.aa','2014-04-23','2014-04-23' ...
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Any instance members are not guaranteed to be thread safe. Constructors 展開資料表 MonitorThreshold() Creates a new instance of the MonitorThreshold class. Properties 展開資料表 Enabled Gets or sets whether the threshold is enabled. MetricId Gets or sets the ID ...