十二、实战数据库（三）

1.在很多的情况下，我们需要把数据存入数据库 导入：npm install --save react-native-sqlite

e.g.:

var sqlite = require('react-native-sqlite');
sqlite.open("filename.sqlite", function (error, database) {
  if (error) {
    console.log("Failed to open database:", error);
    return;
  }
  var sql = "SELECT a, b FROM table WHERE field=? AND otherfield=?";
  var params = ["somestring", 99];
  database.executeSQL(sql, params, rowCallback, completeCallback);
  function rowCallback(rowData) {
    console.log("Got row data:", rowData);
  }
  function completeCallback(error) {
    if (error) {
      console.log("Failed to execute query:", error);
      return
    }
    console.log("Query complete!");
    database.close(function (error) {
      if (error) {
        console.log("Failed to close database:", error);
        return
      }
    });
  }
});