Updating database with sql statement

Given that My SQL database table design, let's assume that we just want to update one record in this table.To do so, we just need to follow these steps: I've tried to document the following Java My SQL UPDATE example so you can see these steps.Just like the SELECT statement, string and date values should be encased in single quotes. If you misspell a column name, SQL throws you an error.

Typically, you want to change a subset of records in your tables and not all records.The error can be catastrophic for your data if you don't have a backup.You might want to update all records in your table, but for most circumstances, you use a WHERE clause.In almost any application, the user must be able to edit data.The user could have accidentally entered a typo or he didn't enter any information and you later ask him for it in the future.

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