Migrating Oracle To Postgres Stored Procedures

github/migrating-oracle-to-postgres-stored-procedures

Migrates Oracle PL/SQL stored procedures to PostgreSQL PL/pgSQL. Translates Oracle-specific syntax, preserves method signatures and type-anchored parameters, leverages orafce where appropriate, and applies explicit collation mapping (`COLLATE "C"` only when appropriate, locale collations when required). Use when converting Oracle stored procedures or functions to PostgreSQL equivalents during a database migration.

735 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

37394

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/github/awesome-copilot --skill migrating-oracle-to-postgres-stored-procedures

The instruction itself

2 sections, as written by the author

Migrating Stored Procedures from Oracle to PostgreSQL

Translate Oracle PL/SQL stored procedures and functions to PostgreSQL PL/pgSQL equivalents.

Workflow

Progress:
- [ ] Step 1: Read the Oracle source procedure
- [ ] Step 2: Translate to PostgreSQL PL/pgSQL
- [ ] Step 3: Write the migrated procedure to Postgres output directory

Step 1: Read the Oracle source procedure

Read the Oracle stored procedure from .github/oracle-to-postgres-migration/DDL/Oracle/Procedures and Functions/. Consult the Oracle table/view definitions at .github/oracle-to-postgres-migration/DDL/Oracle/Tables and Views/ for type resolution.

Step 2: Translate to PostgreSQL PL/pgSQL

Apply these translation rules:

Translate all Oracle-specific syntax to PostgreSQL equivalents.
Preserve original functionality and control flow logic.
Keep type-anchored input parameters (e.g., PARAM_NAME IN table_name.column_name%TYPE).
Use explicit types (NUMERIC, VARCHAR, INTEGER) for output parameters passed to other procedures — do not type-anchor these.
Do not alter method signatures.
Do not prefix object names with schema names unless already present in the Oracle source.
Leave exception handling and rollback logic unchanged.
Do not generate COMMENT or GRANT statements.
Apply collation intentionally when ordering text:
Use COLLATE "C" only when Oracle-compatible binary ordering is required and no other sort order is specified.
If Oracle used explicit linguistic sorting (for example NLS_SORT = French), map to an explicit PostgreSQL locale collation instead of "C".
Use SELECT collname, collprovider, collcollate, collctype FROM pg_collation ORDER BY collname; to discover collations in the target environment.
Treat UNION ALL as a review checkpoint. Validate plan quality per branch and restructure if combined-branch planning causes regressions (for example, unexpected sequential scans on large tables).
Leverage the orafce extension when it improves clarity or fidelity.

Consult the PostgreSQL table/view definitions at .github/oracle-to-postgres-migration/DDL/Postgres/Tables and Views/ for target schema details.

Step 3: Write the migrated procedure to Postgres output directory

Place each migrated procedure in its own file under .github/oracle-to-postgres-migration/DDL/Postgres/Procedures and Functions/{PACKAGE_NAME_IF_APPLICABLE}/. One procedure per file.

How to use it

Copy the folder

Take github/migrating-oracle-to-postgres-stored-procedures from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

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