diff --git a/.gitignore b/.gitignore
index 5bb30c3..53c8081 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+*~
 *.cmi
 *.cmx
 *.o
diff --git a/doc/uml-schema.dia b/doc/uml-schema.dia
index b2dade4..3f29786 100644
Binary files a/doc/uml-schema.dia and b/doc/uml-schema.dia differ
diff --git a/doc/uml-schema.png b/doc/uml-schema.png
index 4940a37..ec21c30 100644
Binary files a/doc/uml-schema.png and b/doc/uml-schema.png differ
diff --git a/sql/Makefile b/sql/Makefile
new file mode 100644
index 0000000..b508225
--- /dev/null
+++ b/sql/Makefile
@@ -0,0 +1,18 @@
+SHELL=bash
+CONFIG=/usr/groups/perfeng/rage/config
+PERF_DB=$(shell grep "^perf_db" $(CONFIG) | awk -F '=' '{print $$2}')
+PERF_HOST=$(shell grep "^perf_host" $(CONFIG) | awk -F '=' '{print $$2}')
+PERF_USER=$(shell grep "^perf_user" $(CONFIG) | awk -F '=' '{print $$2}')
+PERF_PASS=$(shell grep "^perf_pass" $(CONFIG) | awk -F '=' '{print $$2}')
+
+.PHONY: default
+default:
+	@echo "Type 'make reset' to clear the database."
+
+.PHONY: reset
+reset: schema.sql
+	PGPASSWORD=$(PERF_PASS) psql -h $(PERF_HOST) -U $(PERF_USER) $(PERF_DB) < $<
+
+.PHONY: clean
+clean:
+	@rm -f *.{log,sql}
diff --git a/sql/schema.sql b/sql/schema.sql
index e41d278..e3458c0 100755
--- a/sql/schema.sql
+++ b/sql/schema.sql
@@ -8,6 +8,7 @@ drop table soms;
 drop table test_cases;
 drop table tiny_urls;
 
+drop sequence tiny_urls_key_seq;
 create sequence tiny_urls_key_seq;
 grant all on tiny_urls_key_seq to "www-data";
 create table tiny_urls (
@@ -61,7 +62,7 @@ grant select on branch_order to "www-data";
 create table jobs (
         job_id integer not null,
         build_id integer not null,
-        cmd text null,
+        job_cmd text null,
 
         primary key (job_id),
         foreign key (build_id) references builds(build_id)