BtrvUpdate
BtrvUpdate (DataVar,Handle)
BtrvUpdate changes a record in the data file at the last location
accessed with any command that reads a record. The data is passed in the
array DataVar. If key fields are used, or if you are using traditional
style fixed-length fields, then the first elements of the array must
match the data structure of the file you defined with BtrvCreate. All
elements of the array after these fields are written to the
variable-length part of the file. The variable length part can contain
MarxMenu multi-dimensional data structures.
Example:
BtrvGetEqual(DataVar,'MARC PERKEL',1,Handle)
if BtrvResult = 0
DataVar[3] = 37
BtrvUpdate(DataVar,Handle)
endif
Result Codes:
5 - Duplicate Key
7 - Different Key
10 - Modifiable Key Value Error
80 - Conflict
