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  • The first 256 Unicode characters (0, 255) correspond to the ASCII character set.
  • Input values for the CHAR function should be of integer type. Decimal type column data can be used as input. However, if the data contains digits to the right of the decimal point, the CHAR function returns a missing value.
  • If the function cannot evaluate the numeric data, a null value is returned.

D s-lang-vs-sql

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Column reference example: