Computer Science
Which aggregate function can be used to find the cardinality of a table ?
- sum()
- count()
- avg()
- max()
Related Questions
What will be the output of the query ?
SELECT * FROM products WHERE product_name LIKE 'App%';- Details of all products whose names start with 'App'
- Details of all products whose names end with 'App'
- Names of all products whose names start with 'App'
- Names of all products whose names end with 'App'
In which datatype the value stored is padded with spaces to fit the specified length.
- DATE
- VARCHAR
- FLOAT
- CHAR
Which protocol is used to transfer files over the Internet ?
- HTTP
- FTP
- PPP
- HTTPS
Which network device is used to connect two networks that use different protocols ?
- Modem
- Gateway
- Switch
- Repeater