Question

如何在Sqlite中插入变量值，我无法找到我的代码的问题，如果我使用如下的insert语句它正在工作并插入值，

tx.executeSql('INSERT INTO Locationlog (Coordinates, Location, Category, Address) VALUES ("manju", "kishor", "ramesh", "ram")');

如果我尝试按如下方式插入，则不插入值，

tx.executeSql('INSERT INTO Locationlog (Coordinates, Location, Category, Address) VALUES (?,?,?,?)',[Latlongs,Location,Category,Address]);

不适用于像

这样的查询

 tx.executeSql('INSERT INTO Locationlog (Coordinates, Location, Category, Address) VALUES ('+Latlongs+', '+Location+', '+Category+', '+Address+')');

我使用TEXT作为所有列的数据类型，输入值大小介于1-100之间。 TEXT数据类型的最大大小是多少？任何人都可以建议如何在插入查询中插入变量？

var Latlongs = $("#defendLatlongs").val();
   var Location = $("#defendLocation").val();
   var Category = $("#defendcategory").val();
   var Address = $("#defendAddress").val();

   var db = window.sqlitePlugin.openDatabase({name: "MYDB"});
   db.transaction(function (tx) {
   tx.executeSql('CREATE TABLE IF NOT EXISTS Locationlog (Coordinates TEXT, Location TEXT, Category TEXT, Address TEXT)');
     });
  db.transaction(function (tx){
  tx.executeSql('INSERT INTO Locationlog (Coordinates, Location, Category, Address) VALUES (?,?,?,?)',[Latlongs,Location,Category,Address]);


 });

 });

Answer 1

添加id属性

var db = window.sqlitePlugin.openDatabase({name: "MYDB"});
db.transaction(function (tx) {
tx.executeSql('CREATE TABLE IF NOT EXISTS Locationlog (id INTEGER PRIMARY KEY AUTOINCREMENT,Coordinates TEXT,    Location TEXT, Category TEXT, Address TEXT)');
 });
db.transaction(function (tx){
tx.executeSql('INSERT INTO Locationlog (Coordinates, Location, Category, Address) VALUES (?,?,?,?)',   [Latlongs,Location,Category,Address]);

在Sqlite中插入查询的问题？（变量插入）

1 个答案: