visual-studio 插入字节数组 INTO varbinary(max) 记录
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Insert Bytes array INTO varbinary(max) record
提问by Lefteris Gkinis
I want to INSERT INTO a table in a record varbinary(max) a Byte array How can I do that?
我想在记录中插入一个表 varbinary(max) 一个字节数组我该怎么做?
采纳答案by Ray
Using a stored procedure, just create a parameter of type varbinary(max) and insert it into the table as you would any data type.
使用存储过程,只需创建一个 varbinary(max) 类型的参数并将其插入到表中,就像插入任何数据类型一样。
In your c# (or vb or whatever) code, add a parameter to your sql command object and set the byte array as the parameter value:
在您的 c#(或 vb 或其他)代码中,向您的 sql 命令对象添加一个参数并将字节数组设置为参数值:
command.Parameters.AddWithValue("@parameter_name", myByteArray);
If not using a stored procedure, you can probably do the same with a parameterized sql statement, but I have never tried that, so I can't give an example.
如果不使用存储过程,你可能可以用参数化的 sql 语句做同样的事情,但我从未尝试过,所以我不能举个例子。
Edit:
编辑:
You are using a parameterized query, which is not my thing, so I can't guarantee this will work. But, here is some code that should get you going.
您正在使用参数化查询,这不是我的事,所以我不能保证这会起作用。但是,这里有一些代码应该可以帮助您前进。
RemoteSQLcmd = New SqlCommand("INSERT INTO Table(1) Values (newid(), ProductID, @bin_value", RemoteSQLConn)
RemoteSQLcmd.Parameters.AddWithValue(@bin_value", imSource) ;
The binary value must be represented as a parameter (@bin_value), and the value is set by the AddWithValue statement. The parameter name does not have to match the column name.
二进制值必须表示为参数(@bin_value),该值由 AddWithValue 语句设置。参数名称不必与列名称匹配。
A couple of notes: I would suggest using columns names in your insert statement rather than depending on column position, Also, I don't know what you mean by 'table(1)' - is that actually the name of the table?
一些注意事项:我建议在您的插入语句中使用列名,而不是根据列位置,另外,我不知道您所说的“table(1)”是什么意思——这实际上是表的名称吗?
回答by OMG Ponies
Assuming:
假设:
CREATE TABLE [dbo].[varb_table] (
[ID] [int] IDENTITY(1,1) NOT NULL,
[BinaryData] [varbinary](max) NULL,
CONSTRAINT [PK_varb_table] PRIMARY KEY CLUSTERED
)
Use:
利用:
INSERT INTO varb_table
(ID, BinaryData)
VALUES
(NULL, 0x);
DECLARE @pk
SET @pk = @@IDENTITY;
UPDATE varb_table
SET BinaryData.Write (@your_byte_array, 0, DATALENGTH(BinaryData))
WHERE ID = @pk

