Expert knowledge for Azure SQL Database development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when choosing DTU/vCore/serverless/Hyperscale, configuring geo‑replication, elastic pools, Data Sync, or HA/DR, and other Azure SQL Database related development tasks. Not for Azure Database for MariaDB (use azure-database-mariadb), Azure Database for MySQL (use azure-database-mysql), Azure Database for PostgreSQL (use azure-database-postgresql), Azure SQL Managed Instance (use azure-sql-managed-instance).