Interview Questions

mysql_fetch_array:
Fetch a result row as an associative array and a numeric array.

mysql_fetch_object:
Returns an object with properties that correspond to the fetched row and moves the internal data pointer ahead. Returns an object with properties that correspond to the fetched row, or FALSE if there are no more rows.

mysql_fetch_row():
Fetches one row of data from the result associated with the specified result identifier. The row is returned as an array. Each result column is stored in an array offset, starting at offset 0.

The following are the qualities required to be successful in the field of advertising:

 - Creativity
 - Strategic focus
 - Knowledge and expertise in the field of advertising
 - Holding a relevant qualification in the field of advertising
 - Market research orientation
 - People skills etc.

Dashboards are real-time business intelligence interfaces. They allow a huge amount of data to be read in a single interface in order to analyse the success or failure of the business or project in question

Oracle constraints are used to maintain consistent of data and ensure the data is properly maintained. A constraint is more or less a restriction we try to apply on a table.
Types of constraints:
- Check constraints
- NOT NULL constraint
- PRIMARY KEY constraint
- REFERENCES constraint
- UNIQUE constraint

echo() and print() are language constructs in PHP, both are used to output strings. The speed of both statements is almost the same.

echo() can take multiple expressions whereas print cannot take multiple expressions.

Print return true or false based on success or failure whereas echo doesn't return true or false.

Authorization: The process of granting access privileges to resources or tasks within an

application.

Authentication: The process of validating the identity of a user.