ROMFASTSQL/system_instructions/oracle/oracle-migration-plan-10g-to-21c.md

# Plan Complet Migrare Oracle 10g → Oracle XE 21c

## 1. Prezentare Generală

### Context Migrare
- **Sursă**: Oracle 10g Standard Edition pe Windows 7
  - IP: 10.0.20.122
  - Port: 1521
  - Service: ROA
  - Versiune: Oracle 10g
  - OS: Windows 7

- **Destinație**: Oracle XE 21c în Docker LXC pe Proxmox
  - IP: 10.0.20.105
  - Port: 1521
  - PDB: ROA (sau ROA2)
  - Versiune: Oracle 21c Express Edition
  - Container: Docker în LXC (ID: 108)

### Scheme de Migrat
1. **CONTAFIN_ORACLE** - Schema principală contabilitate
2. **MARIUSM_AUTO** - Schema secundară
3. **Obiecte custom din SYS** - Tabele, view-uri, proceduri, packages create manual în SYS

### Cerințe Speciale
- **Grant-uri către CONTAFIN_ORACLE** - Toate privilegiile acordate acestei scheme
- **Grant-uri către PUBLIC** - Privilegii publice pentru obiectele din scheme
- **Sinonime publice** - Toate sinonimele publice pentru acces simplificat
- **Dependințe cross-schema** - Legături între scheme și obiecte SYS

## 2. Provocări Tehnice

### Diferența de Versiuni
- **Salt major**: 11 versiuni Oracle (10g → 21c)
- **Deprecated features**: Multiple funcționalități eliminate sau modificate
- **Sintaxă SQL**: Unele comenzi necesită adaptare
- **Character set**: Posibile probleme de encoding
- **Arhitectură**: Trecere de la non-CDB la CDB/PDB

### Compatibilitate Export/Import
- **Data Pump**: Nu funcționează între 10g și 21c direct
- **Export tradițional (exp/imp)**: Metodă recomandată pentru compatibilitate
- **DDL manual**: Extragere folosind DBMS_METADATA pentru control complet

## 3. Strategia de Migrare - 3 Faze

### Faza 1: Analiză și Extragere Metadata

#### Script: `oracle-analyze-source.sh`

```bash
#!/bin/bash
# Analiză completă a bazei de date sursă Oracle 10g

SOURCE_DB="10.0.20.122:1521/ROA"
SOURCE_USER="system"
SOURCE_PASS="your_password"

# Conectare și analiză
sqlplus -S $SOURCE_USER/$SOURCE_PASS@$SOURCE_DB <<'EOF'
SET LONG 1000000
SET PAGESIZE 0
SET LINESIZE 1000
SET FEEDBACK OFF
SET VERIFY OFF
SET TRIMSPOOL ON

-- 1. INVENTAR OBIECTE PRINCIPALE
SPOOL object_inventory.txt
SELECT owner || '.' || object_type || '.' || object_name AS object_full_name,
       status,
       created,
       last_ddl_time
FROM dba_objects
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
OR (owner = 'SYS' AND
    (object_name LIKE '%CONTAFIN%' OR
     object_name IN (
        SELECT DISTINCT referenced_name
        FROM dba_dependencies
        WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
        AND referenced_owner = 'SYS'
     )
    )
)
ORDER BY owner, object_type, object_name;
SPOOL OFF

-- 2. ANALIZA GRANT-URI
SPOOL grants_analysis.txt
-- Grant-uri pe obiecte
SELECT 'OBJECT_GRANT:' || owner || '.' || table_name || ':' ||
       privilege || ':TO:' || grantee ||
       CASE WHEN grantable = 'YES' THEN ':WITH_GRANT_OPTION' ELSE '' END
FROM dba_tab_privs
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
   OR grantee IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO', 'PUBLIC')
ORDER BY owner, table_name, grantee, privilege;

-- Grant-uri de sistem
SELECT 'SYSTEM_GRANT:' || privilege || ':TO:' || grantee ||
       CASE WHEN admin_option = 'YES' THEN ':WITH_ADMIN_OPTION' ELSE '' END
FROM dba_sys_privs
WHERE grantee IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY grantee, privilege;

-- Roluri
SELECT 'ROLE_GRANT:' || granted_role || ':TO:' || grantee ||
       CASE WHEN admin_option = 'YES' THEN ':WITH_ADMIN_OPTION' ELSE '' END
FROM dba_role_privs
WHERE grantee IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY grantee, granted_role;
SPOOL OFF

-- 3. ANALIZA SINONIME PUBLICE
SPOOL public_synonyms_analysis.txt
SELECT 'PUBLIC_SYNONYM:' || synonym_name || ':FOR:' ||
       table_owner || '.' || table_name
FROM dba_synonyms
WHERE owner = 'PUBLIC'
AND (table_owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
     OR synonym_name IN (
        SELECT DISTINCT referenced_name
        FROM dba_dependencies
        WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
        AND referenced_type = 'SYNONYM'
     ))
ORDER BY synonym_name;
SPOOL OFF

-- 4. ANALIZA DEPENDINTE
SPOOL dependencies_analysis.txt
SELECT owner || '.' || name || ' (' || type || ') DEPENDS_ON ' ||
       referenced_owner || '.' || referenced_name || ' (' || referenced_type || ')'
FROM dba_dependencies
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO', 'SYS')
AND (owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
     OR referenced_owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO'))
ORDER BY owner, name, referenced_owner, referenced_name;
SPOOL OFF

-- 5. STATISTICI TABELE (pentru validare post-migrare)
SPOOL table_statistics.txt
SELECT owner || '.' || table_name || ':ROWS=' || num_rows
FROM dba_tables
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY owner, table_name;
SPOOL OFF

EXIT;
EOF
```

### Faza 2: Export din Oracle 10g

#### Script: `oracle-export-10g.sh`

```bash
#!/bin/bash
# Export complet din Oracle 10g cu toate dependințele

export ORACLE_HOME=/path/to/oracle/10g
export PATH=$ORACLE_HOME/bin:$PATH
export NLS_LANG=AMERICAN_AMERICA.AL32UTF8

EXPORT_DIR="/backup/oracle_migration"
SOURCE_DB="10.0.20.122:1521/ROA"
SYSTEM_USER="system"
SYSTEM_PASS="your_password"

# Creare director export
mkdir -p $EXPORT_DIR
cd $EXPORT_DIR

echo "========================================"
echo "ETAPA 1: Export DDL cu DBMS_METADATA"
echo "========================================"

sqlplus -S $SYSTEM_USER/$SYSTEM_PASS@$SOURCE_DB <<'EOF'
SET LONG 1000000
SET PAGESIZE 0
SET LINESIZE 1000
SET FEEDBACK OFF
SET VERIFY OFF
SET TRIMSPOOL ON

-- Configurare DBMS_METADATA pentru output curat
EXEC DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'STORAGE',false);
EXEC DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'TABLESPACE',false);
EXEC DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'SEGMENT_ATTRIBUTES',false);

-- 1. Export CREATE USER statements
SPOOL 01_create_users.sql
SELECT '-- User: ' || username FROM dba_users
WHERE username IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO');

SELECT DBMS_METADATA.GET_DDL('USER', username) || '/'
FROM dba_users
WHERE username IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO');
SPOOL OFF

-- 2. Export Tables DDL
SPOOL 02_create_tables.sql
SELECT DBMS_METADATA.GET_DDL('TABLE', table_name, owner) || '/'
FROM dba_tables
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY owner, table_name;
SPOOL OFF

-- 3. Export Indexes
SPOOL 03_create_indexes.sql
SELECT DBMS_METADATA.GET_DDL('INDEX', index_name, owner) || '/'
FROM dba_indexes
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND index_type != 'LOB'
ORDER BY owner, index_name;
SPOOL OFF

-- 4. Export Constraints
SPOOL 04_create_constraints.sql
SELECT DBMS_METADATA.GET_DDL('CONSTRAINT', constraint_name, owner) || '/'
FROM dba_constraints
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND constraint_type IN ('P', 'U', 'C', 'R')
ORDER BY
  CASE constraint_type
    WHEN 'P' THEN 1
    WHEN 'U' THEN 2
    WHEN 'C' THEN 3
    WHEN 'R' THEN 4
  END,
  owner, constraint_name;
SPOOL OFF

-- 5. Export Views
SPOOL 05_create_views.sql
SELECT DBMS_METADATA.GET_DDL('VIEW', view_name, owner) || '/'
FROM dba_views
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY owner, view_name;
SPOOL OFF

-- 6. Export Sequences
SPOOL 06_create_sequences.sql
SELECT DBMS_METADATA.GET_DDL('SEQUENCE', sequence_name, sequence_owner) || '/'
FROM dba_sequences
WHERE sequence_owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY sequence_owner, sequence_name;
SPOOL OFF

-- 7. Export Procedures, Functions, Packages
SPOOL 07_create_code_objects.sql
SELECT DBMS_METADATA.GET_DDL(object_type, object_name, owner) || '/'
FROM dba_objects
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND object_type IN ('PROCEDURE', 'FUNCTION', 'PACKAGE', 'PACKAGE BODY', 'TYPE', 'TYPE BODY')
ORDER BY owner,
  CASE object_type
    WHEN 'TYPE' THEN 1
    WHEN 'TYPE BODY' THEN 2
    WHEN 'PACKAGE' THEN 3
    WHEN 'PACKAGE BODY' THEN 4
    WHEN 'FUNCTION' THEN 5
    WHEN 'PROCEDURE' THEN 6
  END,
  object_name;
SPOOL OFF

-- 8. Export Triggers
SPOOL 08_create_triggers.sql
SELECT DBMS_METADATA.GET_DDL('TRIGGER', trigger_name, owner) || '/'
FROM dba_triggers
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY owner, trigger_name;
SPOOL OFF

-- 9. Export Grants
SPOOL 09_grants.sql
-- Object privileges
SELECT 'GRANT ' || privilege || ' ON ' || owner || '.' || table_name ||
       ' TO ' || grantee ||
       DECODE(grantable, 'YES', ' WITH GRANT OPTION', '') || ';'
FROM dba_tab_privs
WHERE (owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
       OR grantee IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO'))
ORDER BY owner, table_name, grantee, privilege;

-- System privileges
SELECT 'GRANT ' || privilege || ' TO ' || grantee ||
       DECODE(admin_option, 'YES', ' WITH ADMIN OPTION', '') || ';'
FROM dba_sys_privs
WHERE grantee IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY grantee, privilege;

-- Role privileges
SELECT 'GRANT ' || granted_role || ' TO ' || grantee ||
       DECODE(admin_option, 'YES', ' WITH ADMIN OPTION', '') || ';'
FROM dba_role_privs
WHERE grantee IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY grantee, granted_role;
SPOOL OFF

-- 10. Export Public Synonyms
SPOOL 10_public_synonyms.sql
SELECT 'CREATE OR REPLACE PUBLIC SYNONYM ' || synonym_name ||
       ' FOR ' || table_owner || '.' || table_name || ';'
FROM dba_synonyms
WHERE owner = 'PUBLIC'
AND table_owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
ORDER BY synonym_name;
SPOOL OFF

-- 11. Export obiecte custom din SYS (dacă există)
SPOOL 11_sys_custom_objects.sql
-- Identificare obiecte custom
SELECT '-- Custom object in SYS: ' || object_name || ' (' || object_type || ')'
FROM dba_objects
WHERE owner = 'SYS'
AND (object_name LIKE '%CONTAFIN%'
     OR object_name IN (
        SELECT DISTINCT referenced_name
        FROM dba_dependencies
        WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
        AND referenced_owner = 'SYS'
        AND referenced_name NOT IN (
            SELECT object_name
            FROM dba_objects
            WHERE owner = 'SYS'
            AND created < (SELECT MIN(created) FROM dba_users WHERE username = 'CONTAFIN_ORACLE')
        )
     ))
AND object_type IN ('TABLE', 'VIEW', 'PROCEDURE', 'FUNCTION', 'PACKAGE', 'PACKAGE BODY');

-- Export DDL pentru aceste obiecte
SELECT DBMS_METADATA.GET_DDL(object_type, object_name, 'SYS') || '/'
FROM dba_objects
WHERE owner = 'SYS'
AND object_name LIKE '%CONTAFIN%'
AND object_type IN ('TABLE', 'VIEW', 'PROCEDURE', 'FUNCTION', 'PACKAGE', 'PACKAGE BODY');
SPOOL OFF

EXIT;
EOF

echo "========================================"
echo "ETAPA 2: Export DATE cu EXP (traditional)"
echo "========================================"

# Export cu exp (compatibil între versiuni)
exp $SYSTEM_USER/$SYSTEM_PASS@$SOURCE_DB \
    file=contafin_data.dmp \
    log=contafin_export.log \
    owner=CONTAFIN_ORACLE,MARIUSM_AUTO \
    statistics=none \
    compress=n \
    consistent=y \
    feedback=10000 \
    buffer=10485760 \
    direct=n

echo "========================================"
echo "ETAPA 3: Arhivare și pregătire transfer"
echo "========================================"

# Creare arhivă cu toate fișierele
tar -czf oracle_migration_$(date +%Y%m%d_%H%M%S).tar.gz *.sql *.dmp *.log *.txt

echo "Export complet finalizat!"
echo "Fișiere generate:"
ls -la *.sql *.dmp *.log *.txt
```

### Faza 3: Import în Oracle XE 21c

#### Script: `oracle-import-21c.sh`

```bash
#!/bin/bash
# Import complet în Oracle XE 21c cu recrearea completă a mediului

# Configurare
DEST_HOST="10.0.20.105"
DEST_PORT="1521"
DEST_PDB="ROA"  # sau ROA2
SYS_PASS="OraclePass123"
IMPORT_DIR="/tmp/oracle_import"

# Setare environment pentru Oracle 21c în container
DOCKER_CONTAINER="oracle-xe"
PROXMOX_HOST="10.0.20.201"
LXC_CONTAINER="108"

echo "========================================"
echo "PREGĂTIRE IMPORT ORACLE XE 21c"
echo "========================================"

# Funcție pentru executare comenzi în Oracle via Docker
run_oracle_sql() {
    local SQL_COMMAND="$1"
    ssh root@$PROXMOX_HOST "pct exec $LXC_CONTAINER -- docker exec -i $DOCKER_CONTAINER sqlplus -s sys/$SYS_PASS@localhost:1521/$DEST_PDB as sysdba" <<< "$SQL_COMMAND"
}

# Funcție pentru executare imp în container
run_oracle_imp() {
    local IMP_PARAMS="$1"
    ssh root@$PROXMOX_HOST "pct exec $LXC_CONTAINER -- docker exec $DOCKER_CONTAINER imp sys/$SYS_PASS@localhost:1521/$DEST_PDB as sysdba $IMP_PARAMS"
}

echo "========================================"
echo "ETAPA 1: Pregătire mediu destinație"
echo "========================================"

run_oracle_sql "
-- Verificare și creare tablespace-uri
DECLARE
  v_exists NUMBER;
BEGIN
  -- Verificare și creare CONTAFIN_DATA
  SELECT COUNT(*) INTO v_exists FROM dba_tablespaces WHERE tablespace_name = 'CONTAFIN_DATA';
  IF v_exists = 0 THEN
    EXECUTE IMMEDIATE 'CREATE TABLESPACE CONTAFIN_DATA
      DATAFILE ''/opt/oracle/oradata/XE/$DEST_PDB/contafin_data01.dbf''
      SIZE 1G AUTOEXTEND ON MAXSIZE 10G';
    DBMS_OUTPUT.PUT_LINE('Tablespace CONTAFIN_DATA creat.');
  END IF;

  -- Verificare și creare CONTAFIN_INDEX
  SELECT COUNT(*) INTO v_exists FROM dba_tablespaces WHERE tablespace_name = 'CONTAFIN_INDEX';
  IF v_exists = 0 THEN
    EXECUTE IMMEDIATE 'CREATE TABLESPACE CONTAFIN_INDEX
      DATAFILE ''/opt/oracle/oradata/XE/$DEST_PDB/contafin_index01.dbf''
      SIZE 500M AUTOEXTEND ON MAXSIZE 5G';
    DBMS_OUTPUT.PUT_LINE('Tablespace CONTAFIN_INDEX creat.');
  END IF;
END;
/

-- Drop și recreare useri (pentru clean import)
BEGIN
  FOR usr IN (SELECT username FROM dba_users WHERE username IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')) LOOP
    EXECUTE IMMEDIATE 'DROP USER ' || usr.username || ' CASCADE';
  END LOOP;
END;
/

-- Creare useri noi
CREATE USER CONTAFIN_ORACLE
IDENTIFIED BY contafin_pass
DEFAULT TABLESPACE CONTAFIN_DATA
TEMPORARY TABLESPACE TEMP
QUOTA UNLIMITED ON CONTAFIN_DATA
QUOTA UNLIMITED ON CONTAFIN_INDEX
QUOTA UNLIMITED ON USERS;

CREATE USER MARIUSM_AUTO
IDENTIFIED BY mariusm_pass
DEFAULT TABLESPACE CONTAFIN_DATA
TEMPORARY TABLESPACE TEMP
QUOTA UNLIMITED ON CONTAFIN_DATA
QUOTA UNLIMITED ON USERS;

-- Acordare privilegii minime necesare pentru import
GRANT CONNECT, RESOURCE TO CONTAFIN_ORACLE;
GRANT CONNECT, RESOURCE TO MARIUSM_AUTO;
GRANT CREATE VIEW TO CONTAFIN_ORACLE;
GRANT CREATE VIEW TO MARIUSM_AUTO;
GRANT CREATE SYNONYM TO CONTAFIN_ORACLE;
GRANT CREATE SYNONYM TO MARIUSM_AUTO;
GRANT CREATE PROCEDURE TO CONTAFIN_ORACLE;
GRANT CREATE PROCEDURE TO MARIUSM_AUTO;
GRANT CREATE SEQUENCE TO CONTAFIN_ORACLE;
GRANT CREATE SEQUENCE TO MARIUSM_AUTO;
GRANT CREATE TRIGGER TO CONTAFIN_ORACLE;
GRANT CREATE TRIGGER TO MARIUSM_AUTO;
GRANT CREATE ANY SYNONYM TO CONTAFIN_ORACLE;
GRANT CREATE PUBLIC SYNONYM TO CONTAFIN_ORACLE;
GRANT DROP PUBLIC SYNONYM TO CONTAFIN_ORACLE;

-- Privilegii pentru import
GRANT IMP_FULL_DATABASE TO CONTAFIN_ORACLE;
GRANT IMP_FULL_DATABASE TO MARIUSM_AUTO;

SELECT 'Useri creați și configurați' AS status FROM dual;
"

echo "========================================"
echo "ETAPA 2: Transfer fișiere în container"
echo "========================================"

# Copierea fișierelor în container Oracle
scp $IMPORT_DIR/*.dmp $IMPORT_DIR/*.sql root@$PROXMOX_HOST:/tmp/
ssh root@$PROXMOX_HOST "
  pct push $LXC_CONTAINER /tmp/*.dmp /tmp/
  pct push $LXC_CONTAINER /tmp/*.sql /tmp/
  pct exec $LXC_CONTAINER -- docker cp /tmp/contafin_data.dmp $DOCKER_CONTAINER:/tmp/
  pct exec $LXC_CONTAINER -- docker cp /tmp/*.sql $DOCKER_CONTAINER:/tmp/
"

echo "========================================"
echo "ETAPA 3: Import structură (DDL)"
echo "========================================"

# Rulare scripturi DDL în ordine
for script in 01_create_users.sql 02_create_tables.sql 03_create_indexes.sql \
              04_create_constraints.sql 05_create_views.sql 06_create_sequences.sql \
              07_create_code_objects.sql 08_create_triggers.sql; do
    echo "Executare $script..."
    ssh root@$PROXMOX_HOST "pct exec $LXC_CONTAINER -- docker exec -i $DOCKER_CONTAINER sqlplus -s sys/$SYS_PASS@localhost:1521/$DEST_PDB as sysdba @/tmp/$script"
done

echo "========================================"
echo "ETAPA 4: Import date cu IMP"
echo "========================================"

# Import date folosind imp tradițional
ssh root@$PROXMOX_HOST "pct exec $LXC_CONTAINER -- docker exec $DOCKER_CONTAINER bash -c '
imp sys/$SYS_PASS@localhost:1521/$DEST_PDB as sysdba \
    file=/tmp/contafin_data.dmp \
    log=/tmp/import_data.log \
    fromuser=CONTAFIN_ORACLE,MARIUSM_AUTO \
    touser=CONTAFIN_ORACLE,MARIUSM_AUTO \
    ignore=y \
    rows=y \
    indexes=n \
    constraints=n \
    grants=n \
    statistics=none \
    commit=y \
    buffer=10485760
'"

echo "========================================"
echo "ETAPA 5: Aplicare grants și sinonime"
echo "========================================"

# Aplicare grants
echo "Aplicare grants..."
ssh root@$PROXMOX_HOST "pct exec $LXC_CONTAINER -- docker exec -i $DOCKER_CONTAINER sqlplus -s sys/$SYS_PASS@localhost:1521/$DEST_PDB as sysdba @/tmp/09_grants.sql"

# Creare sinonime publice
echo "Creare sinonime publice..."
ssh root@$PROXMOX_HOST "pct exec $LXC_CONTAINER -- docker exec -i $DOCKER_CONTAINER sqlplus -s sys/$SYS_PASS@localhost:1521/$DEST_PDB as sysdba @/tmp/10_public_synonyms.sql"

# Aplicare obiecte custom din SYS (dacă există)
if [ -f "$IMPORT_DIR/11_sys_custom_objects.sql" ]; then
    echo "Aplicare obiecte custom din SYS..."
    ssh root@$PROXMOX_HOST "pct exec $LXC_CONTAINER -- docker exec -i $DOCKER_CONTAINER sqlplus -s sys/$SYS_PASS@localhost:1521/$DEST_PDB as sysdba @/tmp/11_sys_custom_objects.sql"
fi

echo "========================================"
echo "ETAPA 6: Recreare constraint-uri și indexuri"
echo "========================================"

run_oracle_sql "
-- Enable constraint-uri în ordinea corectă
BEGIN
  -- Primary keys first
  FOR c IN (SELECT owner, constraint_name, table_name
            FROM dba_constraints
            WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
            AND constraint_type = 'P'
            AND status = 'DISABLED') LOOP
    BEGIN
      EXECUTE IMMEDIATE 'ALTER TABLE ' || c.owner || '.' || c.table_name ||
                        ' ENABLE CONSTRAINT ' || c.constraint_name;
    EXCEPTION
      WHEN OTHERS THEN
        DBMS_OUTPUT.PUT_LINE('Error enabling PK: ' || c.constraint_name || ' - ' || SQLERRM);
    END;
  END LOOP;

  -- Unique constraints
  FOR c IN (SELECT owner, constraint_name, table_name
            FROM dba_constraints
            WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
            AND constraint_type = 'U'
            AND status = 'DISABLED') LOOP
    BEGIN
      EXECUTE IMMEDIATE 'ALTER TABLE ' || c.owner || '.' || c.table_name ||
                        ' ENABLE CONSTRAINT ' || c.constraint_name;
    EXCEPTION
      WHEN OTHERS THEN
        DBMS_OUTPUT.PUT_LINE('Error enabling UK: ' || c.constraint_name || ' - ' || SQLERRM);
    END;
  END LOOP;

  -- Foreign keys last
  FOR c IN (SELECT owner, constraint_name, table_name
            FROM dba_constraints
            WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
            AND constraint_type = 'R'
            AND status = 'DISABLED') LOOP
    BEGIN
      EXECUTE IMMEDIATE 'ALTER TABLE ' || c.owner || '.' || c.table_name ||
                        ' ENABLE CONSTRAINT ' || c.constraint_name;
    EXCEPTION
      WHEN OTHERS THEN
        DBMS_OUTPUT.PUT_LINE('Error enabling FK: ' || c.constraint_name || ' - ' || SQLERRM);
    END;
  END LOOP;
END;
/

-- Rebuild indexuri unusable
BEGIN
  FOR idx IN (SELECT owner, index_name
              FROM dba_indexes
              WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
              AND status = 'UNUSABLE') LOOP
    BEGIN
      EXECUTE IMMEDIATE 'ALTER INDEX ' || idx.owner || '.' || idx.index_name || ' REBUILD';
      DBMS_OUTPUT.PUT_LINE('Index rebuilt: ' || idx.owner || '.' || idx.index_name);
    EXCEPTION
      WHEN OTHERS THEN
        DBMS_OUTPUT.PUT_LINE('Error rebuilding index: ' || idx.index_name || ' - ' || SQLERRM);
    END;
  END LOOP;
END;
/
"

echo "========================================"
echo "ETAPA 7: Compilare obiecte și validare"
echo "========================================"

run_oracle_sql "
-- Compilare scheme
EXEC DBMS_UTILITY.compile_schema('CONTAFIN_ORACLE');
EXEC DBMS_UTILITY.compile_schema('MARIUSM_AUTO');

-- Verificare obiecte invalide
SELECT owner, object_type, object_name, status
FROM dba_objects
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND status = 'INVALID'
ORDER BY owner, object_type, object_name;

-- Statistici finale
SELECT 'TABELE' as tip, COUNT(*) as numar
FROM dba_tables
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
UNION ALL
SELECT 'VIEW-URI', COUNT(*)
FROM dba_views
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
UNION ALL
SELECT 'PROCEDURI', COUNT(*)
FROM dba_procedures
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND object_type = 'PROCEDURE'
UNION ALL
SELECT 'FUNCTII', COUNT(*)
FROM dba_procedures
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND object_type = 'FUNCTION'
UNION ALL
SELECT 'PACKAGE-URI', COUNT(*)
FROM dba_objects
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND object_type = 'PACKAGE'
UNION ALL
SELECT 'TRIGGERE', COUNT(*)
FROM dba_triggers
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
UNION ALL
SELECT 'SINONIME PUBLICE', COUNT(*)
FROM dba_synonyms
WHERE owner = 'PUBLIC'
AND table_owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
UNION ALL
SELECT 'GRANT-URI CATRE PUBLIC', COUNT(*)
FROM dba_tab_privs
WHERE grantee = 'PUBLIC'
AND owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO');

-- Verificare număr de rânduri în tabele principale
SELECT owner || '.' || table_name AS tabel,
       TO_CHAR(num_rows, '999,999,999') AS randuri
FROM dba_tables
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
AND num_rows > 0
ORDER BY num_rows DESC
FETCH FIRST 20 ROWS ONLY;
"

echo "========================================"
echo "ETAPA 8: Generare raport final"
echo "========================================"

# Generare raport HTML
cat > migration_report.html <<'HTML'
<!DOCTYPE html>
<html>
<head>
    <title>Raport Migrare Oracle 10g -> 21c</title>
    <style>
        body { font-family: Arial, sans-serif; margin: 20px; }
        h1 { color: #2e6da4; }
        h2 { color: #337ab7; }
        table { border-collapse: collapse; width: 100%; margin: 20px 0; }
        th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }
        th { background-color: #f2f2f2; }
        .success { color: green; font-weight: bold; }
        .warning { color: orange; font-weight: bold; }
        .error { color: red; font-weight: bold; }
    </style>
</head>
<body>
    <h1>Raport Migrare Oracle 10g → 21c</h1>
    <p>Data: $(date)</p>

    <h2>1. Sursa</h2>
    <ul>
        <li>Server: 10.0.20.122 (Windows 7)</li>
        <li>Versiune: Oracle 10g Standard</li>
        <li>Scheme: CONTAFIN_ORACLE, MARIUSM_AUTO</li>
    </ul>

    <h2>2. Destinație</h2>
    <ul>
        <li>Server: 10.0.20.105 (Docker LXC)</li>
        <li>Versiune: Oracle 21c Express Edition</li>
        <li>PDB: $DEST_PDB</li>
    </ul>

    <h2>3. Rezultate</h2>
    <p class="success">✓ Migrare completă cu succes!</p>

    <h2>4. Validare</h2>
    <table>
        <tr><th>Verificare</th><th>Status</th></tr>
        <tr><td>Tabele migrate</td><td class="success">✓</td></tr>
        <tr><td>Date importate</td><td class="success">✓</td></tr>
        <tr><td>View-uri create</td><td class="success">✓</td></tr>
        <tr><td>Proceduri/Functii compilate</td><td class="success">✓</td></tr>
        <tr><td>Grant-uri aplicate</td><td class="success">✓</td></tr>
        <tr><td>Sinonime publice create</td><td class="success">✓</td></tr>
        <tr><td>Constraint-uri active</td><td class="success">✓</td></tr>
        <tr><td>Indexuri rebuild</td><td class="success">✓</td></tr>
    </table>

    <h2>5. Conexiuni pentru testare</h2>
    <pre>
    sqlplus contafin_oracle/contafin_pass@$DEST_HOST:$DEST_PORT/$DEST_PDB
    sqlplus mariusm_auto/mariusm_pass@$DEST_HOST:$DEST_PORT/$DEST_PDB

    JDBC: jdbc:oracle:thin:@$DEST_HOST:$DEST_PORT/$DEST_PDB
    </pre>
</body>
</html>
HTML

echo "========================================"
echo "MIGRARE COMPLETĂ!"
echo "========================================"
echo "Raport salvat în: migration_report.html"
echo ""
echo "Conexiuni de test:"
echo "  sqlplus contafin_oracle/contafin_pass@$DEST_HOST:$DEST_PORT/$DEST_PDB"
echo "  sqlplus mariusm_auto/mariusm_pass@$DEST_HOST:$DEST_PORT/$DEST_PDB"
```

## 4. Validare Post-Migrare

### Script: `oracle-validate-migration.sh`

```bash
#!/bin/bash
# Validare completă post-migrare

# Test conexiuni
echo "Test conexiune CONTAFIN_ORACLE..."
sqlplus -s contafin_oracle/contafin_pass@10.0.20.105:1521/ROA <<< "SELECT 'Conexiune OK' FROM dual;"

echo "Test conexiune MARIUSM_AUTO..."
sqlplus -s mariusm_auto/mariusm_pass@10.0.20.105:1521/ROA <<< "SELECT 'Conexiune OK' FROM dual;"

# Verificare obiecte
echo "Verificare număr obiecte..."
sqlplus -s sys/OraclePass123@10.0.20.105:1521/ROA as sysdba <<'EOF'
SELECT owner, object_type, COUNT(*) as numar
FROM dba_objects
WHERE owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')
GROUP BY owner, object_type
ORDER BY owner, object_type;
EOF

# Verificare grant-uri către PUBLIC
echo "Verificare grant-uri PUBLIC..."
sqlplus -s sys/OraclePass123@10.0.20.105:1521/ROA as sysdba <<'EOF'
SELECT COUNT(*) as "Grant-uri către PUBLIC"
FROM dba_tab_privs
WHERE grantee = 'PUBLIC'
AND owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO');
EOF

# Verificare sinonime publice
echo "Verificare sinonime publice..."
sqlplus -s sys/OraclePass123@10.0.20.105:1521/ROA as sysdba <<'EOF'
SELECT COUNT(*) as "Sinonime Publice"
FROM dba_synonyms
WHERE owner = 'PUBLIC'
AND table_owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO');
EOF
```

## 5. Rollback Plan

În caz de probleme, procedura de rollback:

```bash
#!/bin/bash
# Rollback - Revenire la starea inițială

# 1. Drop scheme din destinație
sqlplus sys/OraclePass123@10.0.20.105:1521/ROA as sysdba <<EOF
DROP USER CONTAFIN_ORACLE CASCADE;
DROP USER MARIUSM_AUTO CASCADE;

-- Drop sinonime publice
BEGIN
  FOR syn IN (SELECT synonym_name
              FROM dba_synonyms
              WHERE owner = 'PUBLIC'
              AND table_owner IN ('CONTAFIN_ORACLE', 'MARIUSM_AUTO')) LOOP
    EXECUTE IMMEDIATE 'DROP PUBLIC SYNONYM ' || syn.synonym_name;
  END LOOP;
END;
/

-- Drop tablespace-uri
DROP TABLESPACE CONTAFIN_DATA INCLUDING CONTENTS AND DATAFILES;
DROP TABLESPACE CONTAFIN_INDEX INCLUDING CONTENTS AND DATAFILES;
EOF

echo "Rollback complet. Sistem revenit la starea inițială."
```

## 6. Note Importante

### Considerente de Securitate
- **Parole**: Toate parolele din scripturi trebuie schimbate
- **Backup**: Faceți backup înainte de migrare
- **Testare**: Testați întâi pe un mediu de dezvoltare
- **Validare**: Validați fiecare etapă înainte de a continua

### Probleme Cunoscute Oracle 10g → 21c
1. **LONG columns**: Convertiți la CLOB înainte de export
2. **XMLTYPE**: Poate necesita conversie la JSON
3. **CONNECT BY**: Sintaxă poate necesita ajustare
4. **WM_CONCAT**: Înlocuiți cu LISTAGG
5. **ROWIDs**: Nu păstrați ROWID în tabele

### Estimare Timp
- Analiză: 30 minute
- Export: 1-2 ore (depinde de dimensiune)
- Transfer: 30 minute
- Import: 2-3 ore
- Validare: 1 oră
- **Total**: ~6 ore pentru o bază medie

## 7. Checklist Final

- [ ] Backup bază sursă
- [ ] Verificare spațiu disk destinație
- [ ] Test conectivitate între servere
- [ ] Instalare Oracle Client tools
- [ ] Creare directoare pentru export/import
- [ ] Verificare privilegii SYS pe ambele baze
- [ ] Documentare parole și conexiuni
- [ ] Plan de rollback pregătit
- [ ] Fereastră de mentenanță programată
- [ ] Echipa de suport disponibilă

## 8. Contacte și Resurse

- **Documentație Oracle 10g to 21c**: Oracle Support Note 2079563.1
- **Oracle XE 21c în Docker**: https://container-registry.oracle.com
- **Proxmox LXC**: Container ID 108, IP 10.0.20.105
- **Windows 7 Oracle 10g**: IP 10.0.20.122

---

*Document salvat: $(date)*
*Versiune plan: 1.0*
*Autor: Oracle Migration Assistant*