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我必須查詢一組我希望嵌套的數據以使其更有意義。當使用OracleDB的框架ExpressJS查詢數據如下,如何使用帶有ExpressJS的NodeJS使用oracledb查詢來構建和獲取嵌套的JSON對象
oracledb.getConnection(getConnectAttr, function(err,connection){
if(err){
res.set('content-type','application/json');
res.status(500).send(JSON.stringify({
status:500,
message:"Error connection to DB",
detailed_message:err.message
}));
return;
}
connection.execute("select * from REGISTRATION_MASTER", {}, {outFormat : oracledb.OBJECT
},function(err, result){
if(err){
res.set('content-type','application/json');
res.status(500).send(JSON.stringify({
status:500,
message:"Error connection the REGISTRATION",
detailed_message:err.message
}));
}
else{
res.contentType('application/json').status(200);
res.send(result.rows);
}
//Release the connection
connection.release(
function(err){
if(err){
console.error(err.message);
}
else{
console.log("GET/comments : connection released")
}
});
});
});
我用於查詢和查詢結果會是這樣,
[
{
"REG_ID": 1,
"REG_TEXT": "User Name",
"REG_VALUE": null,
"REG_IS_REQUIRED": "true",
"REG_TYPE": "text"
},
{
"REG_ID": 2,
"REG_TEXT": "Password",
"REG_VALUE": null,
"REG_IS_REQUIRED": "true",
"REG_TYPE": "password"
},
{
"REG_ID": 3,
"REG_TEXT": "First Name",
"REG_VALUE": null,
"REG_IS_REQUIRED": "true",
"REG_TYPE": "text"
}
]
我確實需要通過這樣的查詢,以形成一個JSON輸出應該像
{
"REG_FIELDS": [{
"REG_ID": 1, "REG_TEXT": "User Name", "REG_VALUE": "", "REG_IS_REQUIRED": "true",
"REG_TYPE": "text"
}, {
"REG_ID": 2, "REG_TEXT": "Password", "REG_VALUE": "",
"REG_IS_REQUIRED": "true", "REG_TYPE": "password"
}, {
"REG_ID": 3, "REG_TEXT": "First Name",
"REG_VALUE": "", "REG_IS_REQUIRED": "true", "REG_TYPE": "text"
}, ],
"MAINHEADING": "CONSUMER SIGNUP",
"SUBHEADER": "ACCOUNT - CONSUMER - SIGN UP",
"IS_ACTIVE": "TRUE"
};
我正在尋找這樣的輸出與嵌套值。我的要求將會有更多的嵌套值。我正在尋找一個起點。
我也嘗試在ExpressJS中使用ORM,但是在使用ExpressJS和Oracle時各有其缺點。謝謝。
我會仔細研究一下。看起來它給了我我正在尋找的東西。我idod看的ORM是Sworm(https://github.com/featurist/sworm),Typeorm(https://github.com/typeorm/typeorm) – Joseph