Init

MARS_Packages/REL01_POST_DEACTIVATION/MARS-826/rollback_mars826.sql

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+-- ============================================================================
+-- MARS-826 Rollback Script
+-- ============================================================================
+-- Purpose: Remove exported historical data from HIST bucket
+-- Author: Grzegorz Michalski
+-- Schema: OU_LM, OU_MRR (source schemas - read-only)
+-- Target: HIST bucket cleanup (delete exported Parquet files)
+-- Date: 2025-12-02
+-- ============================================================================
+
+-- Create log directory if it doesn't exist
+host mkdir log 2>nul
+
+-- Dynamic spool file generation (using SYS_CONTEXT - no DBA privileges required)
+-- Log files are automatically created in log/ subdirectory
+var filename VARCHAR2(100)
+BEGIN
+    :filename := 'log/ROLLBACK_MARS_826_' || SYS_CONTEXT('USERENV', 'CON_NAME') || '_' || TO_CHAR(SYSDATE,'YYYYMMDD_HH24MISS') || '.log';
+END;
+/
+column filename new_value _filename
+select :filename filename from dual;
+spool &_filename
+
+SET ECHO OFF
+SET TIMING ON
+SET SERVEROUTPUT ON SIZE UNLIMITED
+SET PAUSE OFF
+
+PROMPT ============================================================================
+PROMPT MARS-826 Rollback - Remove Exported Historical Data
+PROMPT ============================================================================
+PROMPT
+PROMPT This rollback will DELETE all exported Parquet files from HIST bucket.
+PROMPT 
+PROMPT Tables affected: 19 tables from OU_LM and OU_MRR schemas
+PROMPT Bucket location: history/ARCHIVE/LM/
+PROMPT
+PROMPT ============================================================================
+ACCEPT confirmation CHAR PROMPT 'Do you want to proceed with rollback? (YES/NO): '
+
+WHENEVER SQLERROR EXIT SQL.SQLCODE
+
+-- Validate confirmation
+BEGIN
+    IF UPPER('&confirmation') != 'YES' THEN
+        RAISE_APPLICATION_ERROR(-20001, 'Rollback cancelled by user');
+    END IF;
+END;
+/
+
+PROMPT
+PROMPT Starting rollback execution...
+PROMPT Timestamp: 
+SELECT TO_CHAR(SYSDATE, 'YYYY-MM-DD HH24:MI:SS') AS ROLLBACK_START FROM DUAL;
+PROMPT
+PROMPT ============================================================================
+
+-- Execute rollback scripts
+@@91_MARS_826_rollback_ADHOC_ADJ_tables.sql
+@@92_MARS_826_rollback_BALANCESHEET_tables.sql
+@@93_MARS_826_rollback_CSM_ADJ_tables.sql
+@@94_MARS_826_rollback_STANDING_FACILITY_tables.sql
+@@95_MARS_826_rollback_MRR_IND_CURRENT_ACCOUNT_tables.sql
+@@96_MARS_826_rollback_FORECAST_tables.sql
+@@97_MARS_826_rollback_QR_ADJ_tables.sql
+@@98_MARS_826_rollback_TTS_tables.sql
+@@99_MARS_826_verify_rollback.sql
+
+PROMPT
+PROMPT ============================================================================
+PROMPT Rollback completed successfully
+PROMPT Timestamp: 
+SELECT TO_CHAR(SYSDATE, 'YYYY-MM-DD HH24:MI:SS') AS ROLLBACK_END FROM DUAL;
+PROMPT ============================================================================
+
+spool off
+
+quit;