1 files changed, 11 insertions, 0 deletions
diff --git a/graphs/sql/safe_haven/req01.sql b/graphs/sql/safe_haven/req01.sql
new file mode 100644
index 0000000..4c0d403
--- /dev/null
+++ b/graphs/sql/safe_haven/req01.sql
@@ -0,0 +1,11 @@
+CREATE TABLE banking_transactions_poc
+(
+    id serial PRIMARY KEY,
+    sender varchar(22) NOT NULL,
+    receiver varchar(22) NOT NULL,
+    amount numeric(16, 2) NOT NULL,
+    CHECK (sender SIMILAR TO 'RR[0-9]{2}[A-Z]{4}[0-9]{14}'),
+    CHECK (receiver SIMILAR TO 'RR[0-9]{2}[A-Z]{4}[0-9]{14}'),
+    CHECK (sender != receiver),
+    CHECK (amount > 0)
+);