A field is a container and an element. A field is the basic unit of information in the Comms Database.
A field is represented by the templated class
Fields are collected into records.
Getting data from a field
An overloaded conversion operator converts the data value in a
The value of a field in memory is NULL:
if the caller has not set the value
if the field as not been loaded from the Comms Database
If the value of a field is NULL after the field has been successfully loaded from the Comms Database, the field has been explicitly set to NULL by the writer of the record.
Setting data into a field
A field has an assignment operator. A type
A descriptor has variable length data. You need to set the size of the buffer that the field uses to store data. You must call
A field is a container and an element. A field is the basic unit of information in the Comms Database.
A field is represented by the templated class
Fields are collected into records.
Getting data from a field
An overloaded conversion operator converts the data value in a
The value of a field in memory is NULL:
if the caller has not set the value
if the field as not been loaded from the Comms Database
If the value of a field is NULL after the field has been successfully loaded from the Comms Database, the field has been explicitly set to NULL by the writer of the record.
Setting data into a field
A field has an assignment operator. A type
A descriptor has variable length data. You need to set the size of the buffer that the field uses to store data. You must call