Nonstop Database, HiRDB Version 9 UAP Development Guide
Apply the locator facility when you are retrieving BLOB or BINARY data and you want to reduce the amount of memory required in the client or decrease the amount of data transferred between the server and the client.
When the locator facility is used, memory for the actual data size does not need to be allocated in the client. In addition, the amount of transferred data can be decreased because a locator can be used for transferring data between the server and the client.
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