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Documentation (6 files, 1500+ lines): Tutorials (3): - 01-deploy-rds-database.md: Deploy PostgreSQL in private network - 02-data-persistence.md: Data persistence with named volumes - 03-security-compliance.md: INF-01/02/03/04 compliance How-to Guides (1): - connect-to-postgresql.md: Connection methods Reference (1): - postgresql-commands.md: PostgreSQL command reference Explanation (1): - database-rds-parallels.md: Docker↔RDS parallels with architecture diagrams Key concepts: - PostgreSQL container → RDS Instance - Private network → VPC Private Subnet - Named volume → EBS volume - Resource limits → DB instance class Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
92 lines
1.6 KiB
Markdown
92 lines
1.6 KiB
Markdown
# Reference: PostgreSQL Commands per Lab 05
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## Comandi Utili
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### Connessione
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```bash
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# Connessione base
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docker exec lab05-db psql -U lab05_user -d lab05_db
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# Connessione con host specificato
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docker exec lab05-app psql -h db -U lab05_user -d lab05_db
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# Esegui comando singolo
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docker exec lab05-db psql -U lab05_user -d lab05_db -c "SELECT version();"
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```
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### Operazioni Database
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```sql
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-- Crea database
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CREATE DATABASE test_db;
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-- Lista database
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\l
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-- Cambia database
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\c test_db
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-- Droppia database
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DROP DATABASE test_db;
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```
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### Operazioni Tabelle
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```sql
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-- Crea tabella
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CREATE TABLE test_table (
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id SERIAL PRIMARY KEY,
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name TEXT,
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value INTEGER
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);
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-- Lista tabelle
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\dt
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-- Descrivi tabella
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\d test_table
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-- Droppia tabella
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DROP TABLE test_table;
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```
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### DML
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```sql
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-- Insert
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INSERT INTO test_table (name, value) VALUES ('test', 42);
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-- Select
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SELECT * FROM test_table;
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-- Update
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UPDATE test_table SET value = 100 WHERE name = 'test';
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-- Delete
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DELETE FROM test_table WHERE name = 'test';
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```
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### Utility
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```bash
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# Verifica PostgreSQL pronto
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docker exec lab05-db pg_isready -U lab05_user
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# Backup database
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docker exec lab05-db pg_dump -U lab05_user lab05_db > backup.sql
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# Ripristina database
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cat backup.sql | docker exec -i lab05-db psql -U lab05_user lab05_db
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```
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## Variabili Ambiente PostgreSQL
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| Variabile | Descrizione | Default |
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|-----------|-------------|---------|
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| POSTGRES_DB | Nome database | postgres |
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| POSTGRES_USER | Utente creato | - |
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| POSTGRES_PASSWORD | Password utente | - |
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| POSTGRES_INITDB_ARGS | Argomenti initdb | - |
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| PGDATA | Data directory | /var/lib/postgresql/data |
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