{
  "id": "go/database-sql-prepare-statement-error",
  "signature": "error: sql: expected 1 argument, got 2",
  "signature_zh": "错误：sql：期望1个参数，得到2个",
  "regex": "error:\\ sql:\\ expected\\ 1\\ argument,\\ got\\ 2",
  "domain": "go",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "The number of arguments provided to a prepared statement does not match the number of placeholders in the query.",
  "root_cause_type": "generic",
  "root_cause_zh": "提供给预编译语句的参数数量与查询中的占位符数量不匹配。",
  "versions": [
    {
      "version": "1.20",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.21",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Counting placeholders manually",
      "why_fails": "Error-prone for complex queries; use named parameters or helper functions.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Use named parameters with sql.Named",
      "success_rate": 0.9,
      "how": "stmt, err := db.PrepareContext(ctx, \"INSERT INTO users(name, age) VALUES(@name, @age)\")\nif err != nil { return err }\n_, err = stmt.ExecContext(ctx, sql.Named(\"name\", \"Alice\"), sql.Named(\"age\", 30))",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-10-01",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}