I am taking a web design and development class and we have been thrown into MySQL along with java without much knowledge beforehand. Was wondering if anyone could help me with understanding how to query the database and update entries, as I am confused on how to accomplish this.
I am able to insert new entries and display table info, but when it comes to adding to existing info nothing seems to work. I can get the statement to work if I supply the data in the SQL statement i.e UPDATE tableName SET columnName1 = value1, WHERE criteria. But when I attempt to use user input and send variables along nothing seems to work.
Any help would be appreciated.