Miscellaneous

How do you delete a record from a table in Java?

Alex Dopico

How do you delete a record from a table in Java?

There are four steps to delete a record from a table using JDBC API.

  1. Open connection to the database.
  2. Create a statement object to perform a delete query.
  3. Execute the executeUpdate() method of statement object to submit a SQL query to database.
  4. Close connection to the database.

How do I delete a PreparedStatement?

Steps to Delete record using Prepared Statement

  1. Get a connection Object. Connection connection = getConnection();
  2. Create a prepareStatement object. String deleteSQL = “DELETE FROM employee_details WHERE salary =?”;
  3. Add parameters (if required) preparedStatement.
  4. execute the query using executeUpdate.

Which method is used to execute delete SQL Statement?

2) Execute the SQL DELETE Query It requires creating a Statement object and then using it’s execute() method.

How do I delete a database record?

Delete a record

  1. Open the table in Datasheet View or form in Form View.
  2. Select the record or records that you want to delete. To select a record, click the record selector next to the record, if the record selector is available.
  3. Press DELETE, select Home > Records > Delete, or press Ctrl+Minus Sign (-).

How do I delete a record in Servlet?

Inside the doGet() method uses the getWriter() method of ServletResponse interface with the reference of HttpServletResponse interface. Then establish a connection of database in java code and then deleted a specified row as in our example uses “delete from data where name = ‘bipul’ “.

Can we use prepared statement for select query in Java?

To retrieve data from a table using a SELECT statement with parameter markers, you use the PreparedStatement. executeQuery method.

How do you delete a table from SQL database?

Using SQL Server Management Studio

  1. In Object Explorer, select the table you want to delete.
  2. Right-click the table and choose Delete from the shortcut menu.
  3. A message box prompts you to confirm the deletion. Click Yes. Deleting a table automatically removes any relationships to it.

Which command is used to delete any record from the table?

We can also use the TRUNCATE command to delete all the records from a table.

How do you delete text in java?

How to delete a string inside a file(. txt) in java?

  1. Retrieve the contents of the file as a String.
  2. Replace the required word with an empty String using the replaceAll() method.
  3. Rewrite the resultant string into the file again.