| Firebird Documentation Index → Firebird 2.5 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 2.5 Language Ref. Update → Internal functions → ASCII_CHAR() |