Syntax: sql(f, query)
Parameters:
procedure main()
db:=open("personnel_db","O","manager","managerpasswd") # open table
# prepare SQL query string to create an employees table of 5 columns
query:="CREATE TABLE employees (id INTEGER PRIMARY KEY, name VARCHAR(40),
phone VARCHAR(12), DOB DATE, pay FLOAT)"
# sql needs an opened connection in order to work; that's why we have
# to open an existing table associated to db
# this requirement will be avoided in the next ODBC interface version
sql(db, query) # execute query
close(db) # close
end