$Sndx
The $SNDX function returns the SOUNDEX code of an argument. The $SNDX function is commonly used with files containing unusual or frequently misspelled names. You can create a field containing the SOUNDEX code for a name and then use that field for retrievals.
The code is derived in the following manner:
- All consecutive occurrences of the same letter are reduced to a single occurrence.
- The first character of the string becomes the first character of the result.
- All vowels, special characters, and the letters H, W, and Y are eliminated. The rest of the characters are transformed as follows:
| Character(s) | Change to... |
|---|---|
| B, F, P, V | 1 |
| C, G, J, K, Q, S, X, Z | 2 |
| D, T | 3 |
| L | 4 |
| M, N | 5 |
| R | 6 |
- SOUNDEX code assigns numbers to the next three consonants of the word following the number assignments shown in the previous table, but disregards any remaining consonants. The Model 204 $SNDX function continues to assign numbers to all consonants.
Example 1
$SNDX('MURRAY') equals M6 $SNDX('MARY') equals M6 $SNDX('O"MALLEY') equals O54
Example 2
BEGIN %A = $SNDX($READ('ENTER NAME')) FIND.RECS: FIND ALL RECORDS FOR WHICH NAME SOUND = %A END FIND . . .