The UC modifier is used with the SUBSTRNG routine to detect the presence of one string of characters (field 1) within another string of characters (field 2) and perform matching. This routine requires one field defined from each record.
This routine compares field 1 from record 1 with field 1 from record 2 and detests whether field 1 from record 1 is a substring of field 1 from record 2. The score varies depending on the location of substring.
|
Score |
Description |
|---|---|
|
100 |
First string is exactly the second string. |
| 99 |
First string resides at the beginning or end of the second string. |
| 98 |
First string resides within the second string. |
| 97 |
Both strings are blank. |
| 96 |
Only one string is blank. |
| 0 |
Any other value. |
Example
| Record | Field 1 |
|
1 |
Jo |
| 2 |
John |
Score returned = 99 ("Jo" resides at the beginning of "John")