A huge lock-in for Oracle is packages. Packages make it easy to organize functions/procedures into groups (one package per group, within the same schema). Ora

A huge lock-in for Oracle is packages. Packages make it easy to organize functions/procedures into groups (one package per group, within the same schema). Oracle is the only db that supports packages. Packages make migrating away very difficult. However...I don't think companies will want to migrate without package support anyhow... The alternative to packages are schemas. One schema for every group of objects. Personally, no thanks. I cannot live without packages.