| COM_COUNT() | Counts the number of characters in the input buffer. |
| COM_DTR() | Queries/sets the Data Terminal Ready (DTR) status. |
| COM_FLUSH() | Clears the receiving buffer. |
| COM_HARD() | Turns the hardware handshake (automatic CTS) on/off. |
| COM_INIT() | Initializes the port parameters. |
| COM_NUM() | Return the number of the highest available serial interface port |
| COM_OPEN() | Opens the port and initializes the buffer |
| COMPILEFILE() | Compile file. |
| COMPILESTRING() | Compile string. |
| COM_READ() | Reads characters from the receiving buffer. |
| COM_RTS() | Queries/sets the RTS status. |
| COM_SEND() | Transmits data. |
| COM_SFLUSH() | Flush sending buffer. |
| COM_SOFT() | Queries or sets the software handshake (automatic XON/XOFF). |
| COM_TIMEOUT() | Set timeout for all operations in 1/10 seconds. |
| CSCOUNT() | Returns the number specified chars into source string. |
| CTOD() | Convert a date string to a date value |
| CURDIR() | Return the current DOS directory |
| DATE() | Return the system date as a date value |
| DAY() | Return the day of the month as a numeric value |
| DBAPPEND() | Append a new record to the database open in the current work area |
| DBCLEARFILTER() | Clear a filter condition |
| DBCLEARINDEX() | Close all indexes for the current work area |
| DBCLEARRELATION() | Clear active relations |
| DBCLOSEALL() | Close all occupied work areas |
| DBCLOSEAREA() | Close a work area |
| DBCOMMIT() | Flush pending updates |
| DBCOMMITALL() | Flush pending updates in all work areas |
| DBCREATE() | Create a database file from a database structure array |
| DBCREATEINDEX() | Create an index file |
| DBDELETE() | Mark a record for deletion |
| DBEDIT() | Browse records in a table layout |
| DBEVAL() | Evaluate a code block for each record matching a scope and condition |
| DBF() | Return current alias name |
| DBFILTER() | Return the current filter expression as a character string |
| DBGOBOTTOM() | Move to the last logical record |
| DBGOTO() | Position record pointer to a specific identity |
| DBGOTOP() | Move to the first logical record |
| DBRECALL() | Reinstate a record marked for deletion |
| DBREINDEX() | Recreate all active indexes for the current work area |
| DBRELATION() | Return the linking expression of a specified relation |
| DBRSELECT() | Return the target work area number of a relation |
| DBSEEK() | Move to the record having the specified key value |
| DBSELECTAREA() | Change the current work area |
| DBSETDRIVER() | Return the default database driver and optionally set a new driver |
| DBSETFILTER() | Set a filter condition |
| DBSETINDEX() | Empty orders from an order bag into the order list |
| DBSETORDER() | Set the controlling order |
| DBSETRELATION() | Relate two work areas |
| DBSKIP() | Move relative to the current record |