delete query in sql code example

Example 1: delete sql query

DELETE FROM Customers
 WHERE CustomerName='Alfreds Futterkiste';

Example 2: sql delete

DELETE FROM table_name WHERE condition;
-- 			Ex.
DELETE FROM Customers WHERE CustomerName='Mustafa Mbari';

Example 3: sql delete

DELETE FROM my_table;		-- all rows
DELETE FROM my_table WHERE my_id = 12345;
DELETE FROM my_table WHERE my_id IN (SELECT id2 FROM my_table2);
COMMIT;		-- don't forget it...

Example 4: sql delete where in

-- Deletes all records where `columnName` matches the values in brackets.
DELETE FROM tableName WHERE columnName IN ('val1', 'val2', 'val3');

Example 5: sql delete all values in a column

UPDATE TableName SET ColumnName = NULL

Example 6: SQL DELETE

Mit DELETE werden einzelne oder mehrere Datensätze gelöscht. Mit WHERE 
werden nur bestimmte Datensätez gelöscht. 

  DELETE FROM suppliers
  WHERE 
      supplier_name = 'Microsoft';

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