ORA-01461: can bind a LONG value only for insert into a LONG column-Occurs when querying

Question

When I try to query objects, I end up with following error:

ORA-01461: can bind a LONG value only for insert into a LONG column

Could someo

Answer 1

In my particular case, I was trying to store a Base64 encoded file into a table BLOB field, using Mybatis.

So in my xml I had:

    
        SELECT SEQ.nextVal FROM DUAL
    
    insert into MYTABLE(
        ID,
        ...,
        PDF
    ) values (
        #{id, jdbcType=VARCHAR},
        ...,
        #{tcPdf, jdbcType=BLOB},
    )

and in my DTO:

String getPdf(){
    return pdf;
}

That makes to Mybatis threat as if were a String char sequence and try to store it as a Varchar. So my solution was the following:

In my DTO:

Byte[] getPdf(){
    return pdf.getBytes();
}

And worked.

I hope this could help anybody.