go type_error ai_generated true

sql: Scan error on column index 0: converting driver.Value type []uint8 ("abc") to a int64: invalid syntax

ID: go/database-sql-rows-scan-error

Also available as: JSON · Markdown · 中文
80%Fix Rate
88%Confidence
0Evidence
2025-05-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.20 active — — —

Root Cause

The database returned a value that cannot be converted to the target Go type, such as a string to int.

generic

中文

数据库返回的值无法转换为目标 Go 类型，例如字符串转整数。

Workarounds

  1. 70% success 
    var val int64; if err := rows.Scan(&val); err != nil { return err }; // handle type mismatch
  2. 90% success 
    Use sql.NullInt64 to handle NULL values

Dead Ends

Common approaches that don't work:

  1. 80% fail

    Data is incorrect, leading to logic errors

  2. 50% fail

    May not match the actual data type