Database Administration Questions

SQL is a domain-specific language used in programming and designed for managing data held in a relational database management system, or for stream processing in a relational data stream management system.

Purpose of SQL are ::

* To define the data structures

* To specify the syntax and semantics of SQL manipulation language

* To specify the syntax and semantics of SQL data definition language

Brightness of bulb depends on both voltage and current. The brightness depends on power.

Since we know that  Power (P) = Voltage x Current = V I

So whether you increase the current or the voltage the brightness will increase.

Example Illustration:

 If you connect a long bulb and a round bulb in series, the long bulb glows but the round bulb does not. Both of them have the same current flowing through them (they are in series) but the long bulb has a greater voltage across it because it has more resistance (even though V= IR is not obeyed exactly, voltage drop does depend on the resistance). If you connect a round bulb and a long bulb in parallel, however, it is the round bulb that is brighter because now the voltage across both bulbs is the same but the current is larger through the round bulb (smaller resistance).

Hence, the brightness of a bulb depends on power i.e, both voltage and current.

The given number series 2, 19, 0, 21, –2, ? follows a pattern,

2

2 + 17 = 19

19 - 19 = 0

0 + 21 = 21

21 - 23 = -2

-2 + 25 = 23

Hence, the next number in the series is 23.

Given number sequence is 28, 16, 28, 76, 274

Here the sequence follows a pattern that

28

28 x 0.5 + 2 = 14 + 2 = 16

16 x 1.5 + 4 = 24 + 4 = 28

28 x 2.5 + 6 = 70 + 6 = 76

76 x 3.5 + 8 = 266 + 8 = 274

274 x 4.5 + 10 = 1233 + 10 = 1243

Hence, the next number in the given number sequence is 1243.

In this Whatsapp group for competitive exams, you can get daily updates about Aptitude, Reasoning, General Knowledge, Current Affairs, Puzzles, Certfications, Interviews, Exams Schedules, etc... In addition you can ask your questions to get answers with tricks and tips.

Click Here To Join This Whatsapp Group

Join our Best General Knowledge (GK) Whatsapp Group here.

The Study of human beauty and the ways in which beauty influences the society is called as Kalology.

• This study is focused primarily on human attractiveness, rather than the broader field of aesthetics.

• Opposite of beauty is Ugly.

Detailed description of a man's life is Biography.

Similarly, detailed description of a Nations is called History.

The valid escape codes in programming languages are ', ", \, n, or t are the valid escape codes. 

For example, the sequence \n usually represents a newline, while the escape sequence \\ represents a backslash, \t usually represents a newtab.