launch a SQL query from the js file

Question

in my JS file I need to do a search on the DB (select * from table where condition) and store the result in an array(multidimensional) do you have an idea how to do it ? thank you in advance

Answer 1

the best solution is to use the dataSource files using the <customSQL> tag , here is an example:

  <operationBindings>
      <operationBinding operationType="fetch">
         <customSQL>
         SELECT  Name, Adress, Phone, Age                       
        FROM tableName
            where Age >20

           </customSQL>
     </operationBinding>
  </operationBindings>  

Answer 2

Don't write any code in your JavaScript related to Database.

In Smart GWT always access database using DataSource

You can use GWT JSNI to call Java method from JavaScript and vice-verse.

Find a sample code on Calling GWT Java function from JavaScript