go data_error ai_generated true

错误：sql：结果集已关闭

error: sql: Rows are closed

ID: go/database-sql-rows-iteration-error-after-close

其他格式: JSON · Markdown 中文 · English
80%修复率
88%置信度
0证据数
2024-02-10首次发现

版本兼容性

版本状态引入弃用备注
1.20 active — — —
1.21 active — — —

根因分析

在结果集关闭后尝试迭代，通常由于过早调用 defer row.Close() 或重复迭代。

English

Attempting to iterate over database/sql Rows after they have been closed, typically due to premature defer row.Close() or double iteration.

generic

解决方案

  1. 95% 成功率 Defer rows.Close() after checking error and before iteration, but ensure iteration completes before close 
    rows, err := db.QueryContext(ctx, query)
if err != nil { return err }
defer rows.Close()
for rows.Next() { /* process */ }
if err = rows.Err(); err != nil { return err }

无效尝试

常见但无效的做法:

  1. Calling rows.Close() at beginning of function 90% 失败

    Deferring Close before iteration closes rows prematurely, causing 'Rows are closed' error on Next().