SQLSTATE P0002 ERROR Class P0: PL/pgSQL Error

no_data_found No Data Found — SQLSTATE P0002

A PL/pgSQL SELECT INTO STRICT found no rows.

PG 12, 13, 14, 15, 16, 17, 18 Official docs
Last reviewed May 2025 Grounded in source

Symptoms

A PL/pgSQL SELECT INTO STRICT found no rows.

  • The error is written to the server log and returned to the client carrying SQLSTATE P0002.
  • Any driver (libpq, JDBC, psycopg, npgsql, pgx) surfaces this code in its error object so you can branch on it programmatically.
  • PL/pgSQL can trap it by name: EXCEPTION WHEN no_data_found THEN.

Environment

Severity: ERROR  |  PostgreSQL versions: 12, 13, 14, 15, 16, 17

Reproduce with the exact statement and read the full message in the server log (raise log_min_messages / set log_min_error_statement for more context).

Root Cause

A SELECT ... INTO STRICT returned zero rows, which STRICT treats as an error.

Diagnostic Queries

Recovery

Steps to resolve P0002:

  1. Handle it: EXCEPTION WHEN no_data_found THEN ....
  2. If zero rows is valid, drop STRICT and check FOUND.

Reference: PostgreSQL error codes — Class P0 (PL/pgSQL Error).

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