> For the complete documentation index, see [llms.txt](https://docs.dot-net.uz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dot-net.uz/database/postgresql/advance.md).

# Advance

- [Constraint (cheklov) lar](https://docs.dot-net.uz/database/postgresql/advance/constraint-cheklov-lar.md): Muzaffar Nurillayev
- [Join lar](https://docs.dot-net.uz/database/postgresql/advance/join-lar.md): Muzaffar Nurillayev
- [Cross join](https://docs.dot-net.uz/database/postgresql/advance/join-lar/cross-join.md)
- [Inner join](https://docs.dot-net.uz/database/postgresql/advance/join-lar/inner-join.md): Muzaffar Nurillayev
- [Left join](https://docs.dot-net.uz/database/postgresql/advance/join-lar/left-join.md)
- [Right join](https://docs.dot-net.uz/database/postgresql/advance/join-lar/right-join.md)
- [Full join](https://docs.dot-net.uz/database/postgresql/advance/join-lar/full-join.md)
- [Union](https://docs.dot-net.uz/database/postgresql/advance/union.md): Muzaffar Nurillayev