ASCII function in Oracle

ASCII is one of the vital string/char functions of Oracle. It is used to return the ASCII code for the desired character or symbol. The ASCII function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i and Oracle 8i.

Syntax:

ASCII( character )

Parameters: character: It is used to specify the character, for which the ASCII code needs to be retrieved. It only accepts a single character and on typing more than one character it just ignores all the characters other than the first one.

Example 1:

ASCII('a')

Output:

97

Explanation: The ASCII code of ‘a’ is 97 and so is the result.

Example 2:

ASCII('AB')

Output:

65

Explanation: The ASCII code of ‘A’ is 65 and so is the result. The other character B is ignored by the ASCII function.

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