Migrates .NET/C# data access code from Oracle to PostgreSQL (Npgsql). Replaces Oracle NuGet packages, rewrites OracleConnection/OracleCommand/OracleDataReader usage, fixes DbType mappings, updates stored procedure invocation patterns, and adapts connection string configuration. Use when migrating the application code layer of a .NET project during an Oracle-to-PostgreSQL database migration.
Install
npx skills add github/awesome-copilot --skill migrating-oracle-to-postgres-data-access-codenpx skills add github/awesome-copilot --skill migrating-oracle-to-postgres-data-access-code -a claude-code -gnpx skills add github/awesome-copilot --skill migrating-oracle-to-postgres-data-access-code -a codex -ggemini skills install https://github.com/github/awesome-copilot.git --path skills/migrating-oracle-to-postgres-data-access-codegh skill install github/awesome-copilot migrating-oracle-to-postgres-data-access-codegit clone --depth 1 https://github.com/github/awesome-copilot /tmp/github__awesome-copilot
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/github__awesome-copilot/skills/migrating-oracle-to-postgres-data-access-code ~/.claude/skills/migrating-oracle-to-postgres-data-access-code # Claude Code
cp -R /tmp/github__awesome-copilot/skills/migrating-oracle-to-postgres-data-access-code ~/.agents/skills/migrating-oracle-to-postgres-data-access-code # Codex, Cursor, Gemini CLI, Copilot, OpenCode