jdbc - Is there any way to prevent Java from turning my double into exponential value? -


Does Java have to stop changing its double into exposition value? I am having trouble saving my database, it keeps telling me that it can not convert my warcurter to a numerical form.

I do; 

  amt = oldAmt - amt; AMT = Math ABS (AMT);

Use the value as a setter in AMT ; 

  jvd.setDr_amt (AMT);

Then generate a query string using a function and it gives me; 

  INSERT (1, 1.595545786E7) in jv (id, dr_amt) values;   
 
 
 I'm very convinced that you do something like this:  
  connection.createStatement (). ExecuteUpdate (enter "My_table VALUES ('" + myDouble + "')"); Do not do this for the following reasons:  
     
  •  Adding a string will cause syntax errors  
  •  String section causes SQL injection   
     Write your statement to allow JDBC to handle data types:  
      generated statement stmt = connection.prepareStatement ("my_table values ​​(INSERT My_table VALUES?) "); Stmt.setDouble (1, myDouble); Stmt.executeUpdate ();  
     
     If you use sentences in double quote inline in your SQL string instead of bound values,  
   BigDecimal  By using your double, instead of: 
 
  New Business (myDouble) .toString ();  
 
 Since you are working on monetary values, you should convert all your doubles to  BigDecimal , as  BigDecimal  Java is the best match for SQL's  DCIMAL  data type

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