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4D v20 R7
ASCII
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The ASCII function returns the leftmost character of the arithmetic_expression as an integer. If the arithmetic_expression is null, the function will return a NULL value.
This example returns the first letter of each last name as an integer:
SELECT ASCII(SUBSTRING(LastName,1,1))
FROM PEOPLE;
Produkt: 4D
Thema: Functions
4D - SQL Reference ( 4D v20 R7)