(ORACLE only)
Extracts
bytes from a field.
Syntax
RAW ( field[ , position[ , length]] )
|
-
field
- Any field from which you want to extract bytes.
-
position
- An integer expression that indicates the position of the first
byte you want to extract from field. The default
value of position is 1.
-
length
- An integer expression that indicates the number of bytes you
want to extract from field. If you do not use
the length argument, RAW uses field from position to end.
Example
This
procedure extracts bytes from the Name field of the
first Customer, starting at byte 8, and writes 4 bytes to the variable r1:
r-rawfct.p
/*You must connect to a non-OpenEdge demo database to run this procedure*/
DEFINE VARIABLE r1 AS RAW NO-UNDO.
FIND FIRST Customer NO-LOCK.
r1 = RAW(Customer.Name,8,4).
|
Notes
- If position is less than 1, or length is less than
0, the AVM returns a run-time error.
- If (position +length -1) is
greater than the length of the field from which you are extracting
the bytes, the AVM returns a run-time error.
