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RDBMS stands for "Reunified Database Management System".

This query retrieves the employees whose names end with h: SELECT * FROM employees WHERE name LIKE 'h%';

This query is correct: ERASE FROM table_name WHERE column1=value1;

The DEFAULT constraint inserts a default value into a column.

MySQL is (as of March 2014) the world's second most widely used open-source RDBMS.