+.IP "\fBneeds\-conversion\fI db schema\fR"
+Reads the schema embedded in \fIdb\fR and the standalone schema in
+\fIschema\fR and compares them. If the schemas are the same, prints
+\fBno\fR on stdout; if they differ, print \fByes\fR.
+.
+.IP "\fBdb\-version\fI db\fR"
+.IQ "\fBschema\-version\fI schema\fR"
+Prints the version number in the schema embedded within the database
+\fIdb\fR or in the standalone schema \fIschema\fR on stdout. A schema
+version number has the form \fIx\fB.\fIy\fB.\fIz\fR. See
+\fBovs\-vswitchd.conf.db\fR(5) for details.
+.IP
+Schema version numbers and Open vSwitch version numbers are
+independent.
+.IP
+If \fIschema\fR or \fIdb\fR was created before schema versioning was
+introduced, then it will not have a version number and this command
+will print a blank line.
+.
+.IP "\fBdb\-cksum\fI db\fR"
+.IQ "\fBschema\-cksum\fI schema\fR"
+Prints the checksum in the schema embedded within the database
+\fIdb\fR or of the standalone schema \fIschema\fR on stdout.
+.IP
+If \fIschema\fR or \fIdb\fR was created before schema checksums were
+introduced, then it will not have a checksum and this command
+will print a blank line.
+.