home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Fritz: All Fritz
/
All Fritz.zip
/
All Fritz
/
FILES
/
PROGNG_C
/
SMALLC.LZH
/
SDB.HLP
< prev
next >
Wrap
Text File
|
1992-02-15
|
1KB
|
24 lines
create <rname> ( <adefs> ) <size> - create a new relation
insert <rname> - insert tuples into a relation
delete <rse> ; - delete tuples from relations
update <anames> from <rse> ; - update tuples within a relation
print [<u>] <anames> from <rse> [<i>] ; - print tuples
sort <rname> by <snames> ; - sort a relation file
import <fname> into <rname> - import tuples from a file
export <rname> [<i>] ; - export tuples to a file
extract <rname> [<i>] ; - extract definition to a file
compress <rname> - compress a relation file
define <mname> - define a macro
exit - exit SDB
<u> ::= using <fname>
<i> ::= into <fname>
<adefs> ::= <a list of attribute definitions>
<rse> ::= <rnames> [where <boolean-expression>]
<rname> ::= <a relation name>
<rnames> ::= <a comma separated list of <rname>s>
<aname> ::= [<rname> .] <an attribute name>
<anames> ::= * | <a comma separated list of <aname>s>
<sname> ::= <aname> { ascending | descending }
<snames> ::= <a comma separated list of <sname>s>