The following Oracle functions are not available as functions in SAP MaxDB:

- CHARTOROWID

- ROWIDTOCHAR

- CONVERT

- DUMP

- USERENV

- NLS_INITCAP

- NLS_LOWER

- NLS_UPPER

- TO_MULTI_BYTE

- TO_SINGLE_BYTE

- INSTRB

- LENGTHB

- SUBSTRB

When the string functions LPAD and RPAD are specified in SAP MaxDB, the character string x cannot be longer than n.

When string function SUBSTR is specified in SAP MaxDB, a cannot be less than 1.

When the function INSTR is specified in MaxDB, the parameter "n" must not be smaller than 1.

When the functions TO_CHAR, TO_DATE and TO_NUMBER are specified in MaxDB, the parameter "nlsparams" is not available.