go data_error ai_generated true

error: sql: Rows.Next called after Rows.Err

ID: go/database-sql-rows-next-after-error

Also available as: JSON · Markdown · 中文
80%Fix Rate
89%Confidence
0Evidence
2026-10-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.20 active — — —
1.21 active — — —

Root Cause

Calling rows.Next() after an error has occurred during iteration, which is invalid and may panic.

generic

中文

在迭代过程中发生错误后调用rows.Next()，这是无效的，可能导致恐慌。

Workarounds

  1. 98% success Always check rows.Err after the iteration loop 
    for rows.Next() { /* process */ }
if err := rows.Err(); err != nil { return err }

Dead Ends

Common approaches that don't work:

  1. Ignoring rows.Err check 90% fail

    May miss iteration errors; always check rows.Err after loop.