To update a table using a WHERE clause, we’d write: UPDATE table SET column='New Value' WHERE column IS NOT NULL
MCQs and Answers about Database Management System
A Database Management System(DBMS) makes it possible for end users to create, read, update and delete data in a database. The DBMS essentially serves as an interface between the database and end users or application programs, ensuring that data is consistently organized and remains easily accessible.The DBMS manages three important things: the data, the database engine that allows data to be accessed, locked and modified — and the database schema, which defines the database’s logical structure.
To insert 2 values into a table, you use which query?
- INSERT INTO `table`(column, column2) VALUES('One', 'Two')
When connecting to a database through PHP, do you use mysql or mysqli?
- mysqli
- ture
Before insert information into a database for any reason, you need to escape the content so you don’t get SQL hacked (injected)
- true
The following SQL query will get how many columns from the table? SELECT * FROM table
- All