Can we delete record using select statement?

The SQL DELETE Query is used to delete the existing records from a table. You can use the WHERE clause with a DELETE query to delete the selected rows, otherwise all the records would be deleted.

Which command is used to remove all rows from a table in MySQL?

truncate command
The truncate command removes all rows of a table. We cannot use a Where clause in this. It is a DDL command.

How do I delete a specific row in a table?

Delete a row, column, or cell from a table

1. Right-click in a table cell, row, or column you want to delete.
2. On the Mini toolbar, click Delete.
3. Choose Delete Cells, Delete Columns, or Delete Rows.

How do I delete multiple table records in one query?

Your eventID in all table will make it work. For deleting records from multiple tables: You could define Foreign Key constraints (which you have defined as EventID) for the other tables that reference the master table’s ID with ON DELETE CASCADE. This would cause the related rows in those tables to be deleted.

How do I delete a record in MySQL?

To delete rows in a MySQL table, use the DELETE FROM statement: DELETE FROM products WHERE product_id=1; The WHERE clause is optional, but you’ll usually want it, unless you really want to delete every row from the table.

How do you delete a specific record from a table in SQL?

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;

What command is used to remove a record from a database table?

The SQL DROP command is used to remove an object from the database. If you drop a table, all the rows in the table is deleted and the table structure is removed from the database.

How can I delete all the contents of a table in MySQL?

There are two ways to delete all the data in a MySQL database table. TRUNCATE TABLE tablename; This will delete all data in the table very quickly. In MySQL the table is actually dropped and recreated, hence the speed of the query.

How would you delete a record from your database table?

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 I empty a table in MySQL?

Use the following procedure to perform the truncate table operation using the MySQL CLI:

1. Log in to your hosting account using SSH: mysql -u [username] -p [database_name) For example: mysql -u johndoe -p data_mysite.
2. Enter your password.
3. Execute: truncate table [table_name]

How do I delete a record in two tables?

The syntax also supports deleting rows from multiple tables at once. To delete rows from both tables where there are matching id values, name them both after the DELETE keyword: DELETE t1, t2 FROM t1 INNER JOIN t2 ON t1.id = t2.id; What if you want to delete nonmatching rows?

How can I delete multiple table records in one query in SQL Server?

You cannot DELETE from multiple tables with a single expression in SQL 2005 – or any other standard SQL for that matter. Access is the exception here. The best method to get this effect is to specify FOREIGN KEYS between the table with an ON DELETE trigger .

If you want to delete a record from any MySQL table, then you can use the SQL command DELETE FROM. You can use this command at the mysql> prompt as well as in any script like PHP. The following code block has a generic SQL syntax of the DELETE command to delete data from a MySQL table.

How do I drop a table in MySQL?

connect to a specific mysql database and execute the command for showing tables. find lines that match “Tables_in” and not show them. find lines that match the + character and not show them. use gawk to print out the words “drop table” followed by the table name (which is in $1) and then a semicolon.

How do I delete database from MySQL?

To delete a MySQL database, perform the following steps: Log in to the WHM interface as the root user. Navigate to the SQL Services section (WHM >> Home >> SQL Services) and click phpMyAdmin. In the far-left column, select the database that you wish to delete. At the top of the interface, click Operations.

How do you delete rows from a table?

Delete rows or columns in a table Select one or more table rows or table columns that you want to delete. You can also just select one or more cells in the table rows or table columns that you want to delete. On the Home tab, in the Cells group, click the arrow next to Delete, and then click Delete Table Rows or Delete Table Columns.