Primeiro commit do projeto

migrations/20260407140549_seq_flash_perdas.sql

@@ -0,0 +1,26 @@
+-- +goose Up
+DECLARE
+    v_count NUMBER;
+BEGIN
+    SELECT COUNT(*) INTO v_count
+      FROM USER_SEQUENCES
+     WHERE SEQUENCE_NAME = 'SEQ_FLASH_PERDAS';
+
+    IF v_count = 0 THEN
+        EXECUTE IMMEDIATE 'CREATE SEQUENCE SEQ_FLASH_PERDAS
+            START WITH 1 INCREMENT BY 1 NOCACHE NOCYCLE';
+    END IF;
+END;
+
+-- +goose Down
+DECLARE
+    v_count NUMBER;
+BEGIN
+    SELECT COUNT(*) INTO v_count
+      FROM USER_SEQUENCES
+     WHERE SEQUENCE_NAME = 'SEQ_FLASH_PERDAS';
+
+    IF v_count > 0 THEN
+        EXECUTE IMMEDIATE 'DROP SEQUENCE SEQ_FLASH_PERDAS';
+    END IF;
+END;