The following sequence of commands will create the
test_table table with the two columns
cola and colb of type
int4 and text, respectively, and insert
two rows into the table.
create test_table (cola = int4, colb = text)
open test_table
insert OID=421 ( 1 "value1" )
insert OID=422 ( 2 _null_ )
close test_table
