java - When I insert 78.9 into Mysql (using JDBC) it gets rounded up to 79? Is this normal -


When I put 78.9 in MySQL (using JDBC) it gets up to 79 goals? This is normal ... if so, how can I stop it?

More information:

Column name: num Data type: decimal (12,0) * the above items to phpMyAdmin

The query is 

  stmt.executeUpdate ("TRANS (INSERT IN triples (sub_id), PRO_ID, number) value (" + Subid + "," + Proid + ", 78.9)"); Ideally I would use a variable instead of hard-coded 78.9

BigDecimal obj = New BigDecimal (78.9 );

You have to set the datatype of the column that you 

  float (x, y)

or 

  decimal (x, y)

Where x is the total number of digits and y is the total number of decimal. 

  For example Float (5,2) - & gt; 325.46 decimals (10,5) - & gt; 42579.12345

-

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