# Class 01 — Warning

> Members and evidence boundaries for PostgreSQL SQLSTATE class 01.
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# Class 01 — Warning

## Shared meaning {#meaning}

The first two characters `01` identify `Warning`. A statement completed with a warning condition. A class gives a directory-level family; each member still needs its own message, transaction aftermath, and response evidence.

## Members {#members}

The locked catalogue contains 8 members in this class:

[`01000`](../../01000/), [`01003`](../../01003/), [`01004`](../../01004/), [`01006`](../../01006/), [`01007`](../../01007/), [`01008`](../../01008/), [`0100C`](../../0100c/), [`01P01`](../../01p01/)

## Version boundary {#versions}

Member links lead to their own versioned facts; consult the version pages and source evidence for exact presence and change boundaries.

## Sources {#sources}

Members are generated from `data/classes.json` and the locked SQLSTATE directory.