| Firebird Documentation Index → Firebird 2.1 Language Ref. Update → Internal functions → ASCII_CHAR() |
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Available in: DSQL, PSQL
Added in: 2.1
Description: Returns the ASCII character corresponding to the number passed in the argument.
Result type: [VAR]CHAR(1) CHARACTER SET NONE
Syntax:
ASCII_CHAR (<code>)<code>::= an integer in the range [0..255]
If the external function ASCII_CHAR is declared in your database, it will override the internal function. To make the internal function available, DROP or ALTER the external function (UDF).
If you are used to the behaviour of the ASCII_CHAR UDF, which returns an empty string if the argument is 0, please notice that the internal function correctly returns a character
with ASCII code 0 here.
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| Firebird Documentation Index → Firebird 2.1 Language Ref. Update → Internal functions → ASCII_CHAR() |