You connect to a Sybase server using the sybconnect command, which returns a connection handle. To select which database on the server to access, you use the sybuse command.

The sybsql command sends an SQL query to the database server for execution. To retrieve data rows, the sybnext command is used.

When finished, use sybclose to close the connection handle to the database server.

The global array variable sybmsg stores information related to the current database operations.

These are the most basic commands used for Sybtcl operations. Other commands support more advanced functions.