mmm

1 files changed, 8 insertions, 0 deletions

diff --git a/backend/database/dev/update_003_make_zone_code_required_unique.sql b/backend/database/dev/update_003_make_zone_code_required_unique.sql
new file mode 100644
index 0000000..08e8896
--- /dev/null
+++ b/backend/database/dev/update_003_make_zone_code_required_unique.sql
@@ -0,0 +1,8 @@
+-- Make zone_code required and unique
+-- This ensures data integrity for audits and lookups
+
+-- First, modify the column to be NOT NULL
+ALTER TABLE `zones` MODIFY `zone_code` VARCHAR(50) NOT NULL;
+
+-- Then add the unique constraint
+ALTER TABLE `zones` ADD UNIQUE KEY `unique_zone_code` (`zone_code`);