How to save TByteDynArray object to SQL Server varbinary(MAX) column?

Question

I am having TByteDynArray object that represents some binary data (file) that I want to store to MS SQL Server database table in varbinary(MAX) column. How can I do it?

I am using C++ Builder XE7 and ADO components and would like to avoid using TADOTable since it would force me to load the entire table.

Answer 1

First you have to create a ADO stream object with your data.

http://www.w3schools.com/asp/ado_ref_stream.asp

Then using ADO "connection->execute" command, insert the stream object into respective table and column using SQL "INSERT" statement.

Answer 2

如果使用的是TADOQuery ，则可以Insert()一行中Insert()或Edit() ，然后为该行中的所需字段调用CreateBlobStream()方法，然后将字节写入提供的TStream对象。