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欄名叫 order,為何建表會失敗?

目標識別名稱加適當引號,資料值則另以參數綁定。

下載完整個案資料及參考答案 ↓

先核來源與已訂規則

本例對應欄名可為 order 或 we"ird。SQL 識別名稱要雙引號,內嵌引號加倍;O'Neil 是資料值,要參數綁定,不能把欄名引號法當作綁值。空欄名在此不容許。

已填假設輸入
紀錄輸入 JSON
原例輸入{"column":"order","value":"O'Neil"}
下載可編輯 CSV ↓

比較兩條實際路徑

未加引號的 order 建表失敗;更正可照存 O'Neil,內嵌引號欄名也可用。例子只執行所附本地欄名和值。

錯誤與更正路徑的輸出
路徑輸出 JSON
錯誤路徑{"error":{"code":1},"values":[]}
更正路徑{"error":null,"values":[{"value":"O'Neil"}]}
下載可編輯 CSV ↓
本地 Node.js 程序:22.23.3 或 24.14.1
import {DatabaseSync} from 'node:sqlite';
import {TextDecoder} from 'node:util';
import {inflateSync} from 'node:zlib';
import {posix} from 'node:path';
import {createHash} from 'node:crypto';
const rows=(db,sql)=>db.prepare(sql).all().map(r=>({...r}));
const failed=(action)=>{try{action();return null;}catch(e){return {code:e.errcode??e.code??e.name};}};

import assert from 'node:assert/strict';
const run=function run(i,corrected=true){
    if(!['order','we"ird',''].includes(i.column))return {error:'outside-fixed-example',values:[]};
    if(!i.column)return {error:'empty-identifier',values:[]};
    const db=new DatabaseSync(':memory:');const name=corrected?'"'+i.column.replace(/"/g,'""')+'"':i.column;
    try{const error=failed(()=>{db.exec('CREATE TABLE target('+name+' TEXT);');db.prepare('INSERT INTO target('+name+') VALUES(?)').run(i.value);});
      return {error,values:error?[]:rows(db,'SELECT '+name+' AS value FROM target')};
    }finally{db.close();}
  };
const cases=[{"label":"misleading base","input":{"column":"order","value":"O'Neil"},"expected":{"error":{"code":1},"values":[]},"corrected":false},{"label":"corrected base","input":{"column":"order","value":"O'Neil"},"expected":{"error":null,"values":[{"value":"O'Neil"}]},"corrected":true},{"label":"embedded quote in identifier","input":{"column":"we\"ird","value":"A"},"expected":{"error":null,"values":[{"value":"A"}]},"corrected":true},{"label":"empty identifier prohibited","input":{"column":"","value":"A"},"expected":{"error":"empty-identifier","values":[]},"corrected":true}];
for(const test of cases){
  const actual=run(test.input,test.corrected);
  assert.deepEqual(actual,test.expected,test.label);
  console.log(test.label,actual);
}
下載可執行例子 ↓

下次載入前核邊界

欄名內嵌引號正確轉義便可用;明確空名稱門檻則不建欄。

可編輯邊界紀錄及預期輸出
情況輸入 JSON預期輸出 JSON
欄名內嵌引號{"column":"we\"ird","value":"A"}{"error":null,"values":[{"value":"A"}]}
空識別名稱拒收{"column":"","value":"A"}{"error":"empty-identifier","values":[]}
下載可編輯 CSV ↓

參數位置可否直接代替目標欄名?

查看參考答案

不可,參數綁資料值,識別名稱依獲准引號規則組建。此處 order 加引號,O'Neil 用綁值。

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