ORA-26076: cannot set or reset value after direct path structure is allocated
Cause: Client attempted to set or reset the number of rows in a direct path
* structure after it has already been allocated and initialized.
* Attributes used is one of the following:
* – OCI_ATTR_NUM_ROWS: to set # of rows in a direct path column array
* – OCI_ATTR_DIRPATH_DCACHE_SIZE: to set size of a date cache
* (default is 0)
* – OCI_ATTR_DIRPATH_DCACHE_DISABLE: to set whether date cache will be
* disabled on overflow (default is FALSE)
Action: Set the following attributes before:
* – OCI_ATTR_NUM_ROWS: before calling OCIHandleAlloc for column array
* – OCI_ATTR_DIRPATH_DCACHE_SIZE: before calling OCIDirPathPrepare
* – OCI_ATTR_DIRPATH_DCACHE_DISABLE: before calling OCIDirPathPrepare
ORA-26076错误，表示在直接路径结构分配之后，不能设置或重置值。
这个错误通常是由在直接路径结构（OCI描述符）之后调用OCI函数dataXfer()或设置非法参数导致的。
開發者可以通過遵循以下步驟來避免此錯誤：
– 在分配直接路徑結構之前，憑據試圖修改的變量的值不存在時，確保其值的正確性。
– 在每次調用OCI函數dataXfer()之前，都必須先將變量的值正確分配給需要入口的資料進行複製。
– 如果已經對直接路徑結構（OCI描述符）分配空間，則不能在dataXfer()之後再對它們進行設置或重置。