F-UREAD
Reads a record into a file buffer and applies an update lock.
Synopsis
F-UREAD fb itemId F-U fb itemId
Arguments
| fb | An integer specifying the file buffer. |
| itemId | The item ID of the record to be read from the file buffer. itemId can be an integer, or a reference to a buffer or a select list that contains the item ID. |
Description
The F-UREAD PROC command reads a specified record from a file into the file buffer. The file must have been opened using the F-OPEN command, which assigned it a numbered fb file buffer.
If the requested record is locked by another process, F-UREAD waits until the lock becomes available.
F-UREAD applies an update lock on the record, preventing other users access to the record. This lock is released using the F-FREE command.
F-UREAD is a PQN command.
