Question

我想从本地存储中搜索，Ionic2的Sqlite查询对于此 - 从本地存储中搜索数字的sql查询是什么。像这样的东西 - 从mytable中选择row_id，其中* like＆＃39;％searching_text％＆＃39;;

 var searchmobile=newvalue
          this.database.executeSql("SELECT mobile_no FROM customer WHERE mobile_no like ?",
            [searchmobile]).then((customerdata) =>

Answer 1

尝试连接searchmobile，如：

 var searchmobile=newvalue
          this.database.executeSql("SELECT mobile_no FROM customer WHERE mobile_no like ?",
            ['%' + searchmobile + '%']).then((customerdata) =>

Answer 2

你需要在执行查询之前打开数据库

`var searchmobile=newvalue
this.database = new SQLite();
this.database.openDatabase({
        name: "data.db",
        location: "default"
      }).then(() => {
this.database.executeSql("SELECT mobile_no FROM customer WHERE mobile_no like ?",
            [searchmobile]).then((customerdata) =>`

SQLite搜索查询

2 个答案: