Init

MARS_Packages/REL01/MARS-1049/rollback_mars1049.sql

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+-- ===================================================================
+-- MARS-1049 ROLLBACK SCRIPT: CSV Encoding Support
+-- ===================================================================
+-- Purpose: Complete rollback of CSV encoding support changes
+-- Author: Grzegorz Michalski
+-- Date: 2025-11-25
+-- Version: 1.5.0
+
+-- Dynamic spool file generation
+var filename VARCHAR2(100)
+BEGIN
+    SELECT 'ROLLBACK_MARS_1049_' || SUBSTR(PDB_NAME, (INSTR(PDB_NAME,'_',1)+1), (LENGTH(PDB_NAME)-INSTR(PDB_NAME,'_',1))) ||  '_' ||TO_CHAR(SYSDATE,'YYYYMMDD_HH24MISS')||'.log' INTO :filename from DBA_PDBS;
+END;
+/
+column filename new_value _filename
+select :filename filename from dual;
+spool &_filename
+-- 
+-- CURRENT IMPLEMENTATION STATUS:
+-- - CT_MRDS.FILE_MANAGER: Version 3.2.1 with pEncoding parameter (deployed)
+-- - ODS.FILE_MANAGER_ODS: Version 2.1.0 with pEncoding wrapper (deployed)
+-- - A_SOURCE_FILE_CONFIG: ENCODING VARCHAR2(50) column (deployed)
+-- 
+-- ROLLBACK STRATEGY:
+-- - Uses current_version/ folder for pre-MARS-1049 package versions
+-- - Uses new_version/ folder for MARS-1049 enhanced versions (for reference)
+-- 
+-- ROLLBACK ORDER:
+-- 1. Restore ODS.FILE_MANAGER_ODS package from current_version/ (version 2.0.0)
+-- 2. Restore CT_MRDS.FILE_MANAGER package from current_version/ (version 3.2.0)  
+-- 3. Remove ENCODING column from A_SOURCE_FILE_CONFIG
+-- 4. Track package versions
+-- 5. Verify all tracked packages
+-- 6. Revoke SELECT ANY DICTIONARY from CT_MRDS
+-- ===================================================================
+
+PROMPT ===============================================
+PROMPT MARS-1049: CSV Encoding Support - Full Rollback
+PROMPT ===============================================
+
+-- Set error handling
+WHENEVER SQLERROR CONTINUE
+WHENEVER OSERROR CONTINUE
+
+PROMPT
+PROMPT Warning: This will remove the ENCODING column and revert all package changes.
+PROMPT Make sure you have backed up your data if needed.
+PROMPT
+
+-- Step 1: Restore ODS.FILE_MANAGER_ODS package to version 2.0.0
+PROMPT Step 1: Restoring ODS.FILE_MANAGER_ODS package to version 2.0.0...
+PROMPT ===============================================
+
+-- Restore ODS.FILE_MANAGER_ODS specification from current_version (before MARS-1049)
+@@current_version/FILE_MANAGER_ODS.pkg
+
+-- Restore ODS.FILE_MANAGER_ODS body from current_version (before MARS-1049)  
+@@current_version/FILE_MANAGER_ODS.pkb
+
+PROMPT ODS.FILE_MANAGER_ODS package restored to version 2.0.0
+
+-- Step 2: Restore CT_MRDS.FILE_MANAGER package to version 3.2.0
+PROMPT Step 2: Restoring CT_MRDS.FILE_MANAGER package to version 3.2.0...
+PROMPT ===============================================
+
+-- Restore CT_MRDS.FILE_MANAGER specification from current_version (before MARS-1049)
+@@current_version/FILE_MANAGER.pkg
+
+-- Restore CT_MRDS.FILE_MANAGER body from current_version (before MARS-1049)
+@@current_version/FILE_MANAGER.pkb
+
+PROMPT CT_MRDS.FILE_MANAGER package restored to version 3.2.0
+
+-- Step 3: Remove ENCODING column from A_SOURCE_FILE_CONFIG
+PROMPT Step 3: Remove ENCODING column from A_SOURCE_FILE_CONFIG...
+PROMPT ===============================================
+
+@@91_MARS_1049_rollback_DROP_ENCODING_COLUMN.sql
+
+-- Step 4: Track rollback version
+PROMPT Step 4: Tracking package versions...
+PROMPT ===============================================
+
+@@track_package_versions.sql
+
+PROMPT
+PROMPT Step 5: Verifying all tracked packages...
+PROMPT ===============================================
+@@verify_packages_version.sql
+
+PROMPT
+PROMPT Step 6: Revoking cross-schema hash tracking permissions...
+PROMPT ===============================================
+@@90_MARS_1049_rollback_revoke_permissions.sql
+
+PROMPT ===============================================
+PROMPT MARS-1049: Rollback Complete!
+PROMPT ===============================================
+PROMPT
+PROMPT Summary of Rollback Changes:
+PROMPT - A_SOURCE_FILE_CONFIG: Removed ENCODING VARCHAR2(50) column
+PROMPT - CT_MRDS.FILE_MANAGER: Restored to version 3.2.0 (before MARS-1049)
+PROMPT - ODS.FILE_MANAGER_ODS: Restored to version 2.0.0 (before MARS-1049)
+PROMPT - SELECT ANY DICTIONARY: Revoked from CT_MRDS (cross-schema tracking disabled)
+PROMPT
+PROMPT All MARS-1049 changes have been successfully rolled back.
+PROMPT System is now in pre-MARS-1049 state.
+PROMPT
+
+spool off
+
+exit