How do you delete a record in SQL Java?

How do you delete a record in SQL 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 delete a selected row in SQL?

To remove one or more rows in a table:

1. First, you specify the table name where you want to remove data in the DELETE FROM clause.
2. Second, you put a condition in the WHERE clause to specify which rows to remove. If you omit the WHERE clause, the statement will remove all rows in the table.

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

We can remove a selected row from a JTable using the removeRow() method of the DefaultTableModel class.

How do you delete a whole table in SQL?

The drop table command is used to delete a table and all rows in the table. To delete an entire table including all of its rows, issue the drop table command followed by the tablename. drop table is different from deleting all of the records in the table.

How do you write a delete query in Java?

Java MySQL DELETE example – source code

1. Create a Java Connection to our MySQL database.
2. Create a SQL DELETE query statement.
3. Create a Java PreparedStatement for our SQL DELETE query.
4. Set the fields on our Java PreparedStatement object.
5. Execute our Java PreparedStatement .
6. Close our Java MySQL database connection.

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 you write delete?

SQL DELETE Statement

1. DELETE FROM table_name WHERE condition;
2. Example. DELETE FROM Customers WHERE CustomerName=’Alfreds Futterkiste’;
3. DELETE FROM table_name;
4. Example. DELETE FROM Customers;

How do you delete data in Java?

In Java, we can delete a file by using the File. delete() method of File class. The delete() method deletes the file or directory denoted by the abstract pathname. If the pathname is a directory, that directory must be empty to delete.

How can I clear the content of the JTable using Java?

How can i clear the content of the JTable using Java.. You must remove the data from the TableModel used for the table. If using the DefaultTableModel, just set the row count to zero. This will delete the rows and fire the TableModelEvent to update the GUI.

How to remove a selected row from JTable in Java?

We can remove a selected row from a JTable by using removeRow () method of DefaultTableModel class. import java.awt.event.*;

How is JTable used in Model View Controller?

JTable is a subclass of JComponent class for displaying complex data structures. JTable can follow the Model View Controller (MVC) design pattern to display data in rows and columns. JTable can generate ListSelectionListener, TableColumnModelListener, TableModelListener, CellEditorListener and RowSorterListener interfaces.