When comparing two fields or a field and constants, fixed-length
fields can be compared to variable-length fields as long as the types are
compatible.
Table 1 describes valid comparisons
for double-byte character set (DBCS) fields in a logical file.
Table 1. Valid
comparisons for DBCS fields in a logical file| |
Any numeric |
Character |
Hexadecimal |
DBCS-open |
DBCS- either |
DBCS-only |
DBCS- graphic |
UCS2- graphic |
UTF-8 |
UTF-16 |
Date |
Time |
Timestamp |
|---|
| Any numeric |
Valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
|---|
| Character |
Not valid |
Valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
|---|
| Hexa- decimal |
Not valid |
Valid |
Valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
|---|
| DBCS- open |
Not valid |
Valid |
Valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
|---|
| DBCS- either |
Not valid |
Valid |
Valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
|---|
| DBCS- only |
Not valid |
Not valid |
Valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
|---|
| DBCS- graphic |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Valid |
Not valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
|---|
| UCS2- graphic |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
|---|
| UTF-8 |
Not valid |
Valid |
Not valid |
Valid |
Not valid |
Not valid |
Valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
|---|
| UTF-16 |
Not valid |
Valid |
Not valid |
Valid |
Not valid |
Not valid |
Valid |
Valid |
Valid |
Valid |
Not valid |
Not valid |
Not valid |
|---|
| Date |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Valid |
Not valid |
Not valid |
|---|
| Time |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Valid |
Not valid |
|---|
| Time- stamp |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Not valid |
Valid |
|---|
|