# Topics

> Start from an operational problem and find its SQLSTATE paths.
---

Topic indexes cover constraint conflicts, authentication and authorization, transaction retry, locks and timeouts, object resolution, and resource or system failures. Topics point to code pages; they do not create a second identity for a condition.

<!-- BEGIN SQLSTATE INDEX: generated by scripts/generate.py; do not edit -->

| Topic | Codes |
| --- | --- |
| Constraints and conflicts | [`23505`](../23505/), [`23503`](../23503/), [`23502`](../23502/), [`23514`](../23514/), [`23P01`](../23p01/), [`23000`](../23000/), [`23001`](../23001/) |
| Authentication and privileges | [`28P01`](../28p01/), [`28000`](../28000/), [`42501`](../42501/) |
| Transactions, locks, and retry | [`40P01`](../40p01/), [`40001`](../40001/), [`25P02`](../25p02/), [`25006`](../25006/), [`57014`](../57014/) |
| Syntax and object resolution | [`42601`](../42601/), [`42P01`](../42p01/), [`42P02`](../42p02/), [`42701`](../42701/), [`42703`](../42703/), [`42883`](../42883/) |
| Resources and connectivity | [`53300`](../53300/), [`53000`](../53000/), [`53100`](../53100/), [`53200`](../53200/), [`57P01`](../57p01/), [`57P03`](../57p03/), [`58000`](../58000/) |
| Data and type boundaries | [`2202E`](../2202e/), [`22003`](../22003/), [`22007`](../22007/), [`22P02`](../22p02/) |

<!-- END SQLSTATE INDEX -->

---

Backlinks:

- [SQLSTATE Atlas](/)