The size limit of the OCI LOB Array Insert is 64K for one field?

I have a table with 4 field, and one is BLOB field. I want to insert 16 rows in one OCIStmtExecute. I know I can specify the iter parameter with 16 to execute sql 16 times.
I found example in "Application Developer's Guide - Large Objects" in page "Data Interface for Persistent LOBs 13-17", there is a example function called "array_insert". It shows the usage of OCIBindArrayOfStruct, but can only insert LOB with same size, the LOB field of each row filled with the same size data.
But I have to insert LOB with different size, for example 8K for row 1, and 16K for row 2, 128K for row 3. Than I find the alenp parameter of OCIBindByName/OCIBindByPos. It is "pointer to array of actual lengths of array elements."(OCI document). So I think I find the solution for my problem. But the type of alenp parameter is ub2*, is it means I can only insert 64K data for each row in my array insert? It is too small, I hope I can array insert BLOB with 16M each row.
Or there is any other solution for my problem? I look forward to it for a long time! thanks every one!

It is called Data Interface to work with LOB datatypes by APIs designed for use with legacy datatypes. I can specify SQLT_BIN to bind memory binary data to BLOB column, and INSERT or UPDATE directly. It can be without LOB locator and save round-trip to the server. This is very fit my needs, because I have to insert very much BLOBs to server as soon as possible.
I have make a test program, and multi-row with different size blob( less than 65536 bytes) can be insert at one time, without locators. Multi-row wiht same size blob( more than 64K) also can be insert at one time--the alenp parameter is not used. I only can not insert multi-row with different size blob( more than 64k) because the type of alenp is ub2*.
thank you for your reply!

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