甲骨文刪除語句未JS

Question

我試圖用這個JS函數來刪除一個表中的一行在Oracle數據庫中的工作：

deleteDirection(directionId, callback) { 
if (!this.connected) { 
    return Promise.reject(new Error('not connected')).asCallback(callback) 
} 
const connection = this.connection 

const task = Promise.coroutine(function*() { 
    const conn = yield connection 
    const query = 'DELETE FROM directions WHERE direction_id = :directionId' 
    const result = yield conn.execute(query, { directionId }, { 
    outFormat: oracle.OBJECT, 
    }) 
    .then(directionDeleted => { 
    if (directionDeleted.rowsAffected === 0) { 
     return Promise.reject(new Error('invalid number')) 
    } 
    return Promise.resolve(directionDeleted) 
    }) 
    .catch(err => Promise.reject(new Error(err))); 

    return Promise.resolve(result) 
}) 
return Promise.resolve(task()).asCallback(callback) 
} 

的功能完成，沒有任何問題，但該行不會被刪除，如果我在Oracle SQL Developer上嘗試相同的語句，它可以很好地工作，可能是什麼問題？

Answer 1

嘗試這種情況：

deleteDirection(directionId, callback) { 
if (!this.connected) { 
    return Promise.reject(new Error('not connected')).asCallback(callback) 
} 
const connection = this.connection 

const task = Promise.coroutine(function*() { 
    const conn = yield connection 
    const query = 'DELETE FROM directions WHERE direction_id = :directionId' 
    const result = yield conn.execute(query, { directionId: directionId}, { 
    outFormat: oracle.OBJECT, 
    autoCommit: true 
    }) 
    .then(directionDeleted => { 
    if (directionDeleted.rowsAffected === 0) { 
     return Promise.reject(new Error('invalid number')) 
    } 
    return Promise.resolve(directionDeleted) 
    }) 
    .catch(err => Promise.reject(new Error(err))); 

    return Promise.resolve(result) 
}) 
return Promise.resolve(task()).asCallback(callback) 
} 

通知改變到綁定變量和使用自動提交的。

您使用的是翻譯？

Answer 2

關注NodeOracle實施例和通參數作爲數組：

const result = yield conn.execute(query, [ directionId ], { 
    outFormat: oracle.OBJECT, 
    }) 

https://github.com/oracle/node-oracledb/blob/master/examples/select1.js