| Bit_Length(<>) | <> |
| Cast(<> As < >) | <>, < > |
| Char[acter]_Length(<>) | <> |
| Convert(<> using <>) | <>, <> |
| Current_Date | |
| Current_Time(<>) | <> |
| Current_TimeStamp(<>) | <> |
| Extract(<> from <>) | <> (Day, Hour ..) <> |
| Lower(<>) | <>, |
| Octet_Length(<>) | <> |
| Position(<1> in <2>) | , <1> <2> |
| Substring(<> from for <>) | <>, <> |
| Trim(Leading|Trailing|Both <> from <>) | <>, | | <> |
| Upper(<>) | <>, |
| User |
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