Answer:
A query in a database is a request for information stored within a database management system (DBMS), which is the software program that maintains data.
SQL(Structured Query Language ( is a standard language for storing, manipulating, and retrieving data in database.
Five types of SQL queries are:
1) Data Definition Language (DDL).
used to define and modify the structure of a database.
2) Data Manipulation Language (DML).
used to manipulate (change) the data in the database.
3) Data Control Language(DCL).
used for access control and permission management for users in the database.
4) Transaction Control Language(TCL).
used for maintaining consistency of the database and for the management of transactions made by the DML commands.
5) Data Query Language (DQL).
used for performing queries on the data within schema objects.
It has happened to me before. i think it’s just because someone is already typing an answer maybe ♀️ or try restarting the app and get back on it. might be jus a glitch from the app but either way hope you get it fixed :)
<span>Use 8-bit resolution when recording human speech in an audio file.
</span><span>The </span>resolution<span> of </span>8 bits<span> can encode an analog input to one in 256 different levels. The reason why 256 levels is because 2^8</span><span> = 256.
</span>The analog to digital converter (ADC) <span> represents the analog input as a digital word.</span>
Organic light emitting diode,
Technology is a category not a specific thing
<span>1. Why is photographing lightning a difficult process?
</span>Some reasons which come to my mind for saying this are: 1) You get only one chance for the particular situation - it is not like portrait photography where you can go back in the studio if the photos didn't come out well; 2) lightning varies so much in brightness, intensity and location that guessing the proper exposure requires a lot of experience, as well as luck; 3) you are always at some risk when photographing worthwhile lightning; and 4) lightning is a point (line) source, and demands the most of the optical quality of your camera
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2. What piece of equipment is helpful in capturing lightning photographs?
</span><span><span>SLR camera with B-shutter speed (preferably SLR; you might try using your digital camera, if it has B mode, but this is much more difficult)</span><span>lenses ranging from 28mm to 135mm at minimum. Fixed-focal lenses are preferred over zoomlenses. Aperture ranges should be f/2.8 - f/22.</span><span>sturdy tripod (metal or plastic doesn't make any difference whatsoever at all in safety - if lightning is so close by, you are in trouble anyway)</span><span>cable release, which can be locked</span><span>Slow-speed film: 100 or 200 ISO
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3. Why is it important to mentally prepare for photographing lightning?
</span><span>When photographing lightning, it’s important to realize that the conditions you are shooting in are unpredictable and dangerous, and there will always be an element of chance and luck involved. So you should prepare yourself.
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4. What time of day should you try to photograph lightning?
</span>Nighttime lightning photography is the easiest <span>type
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5. Why is composition important in lightning photographs?
It boosts or adds drama to your picture. </span>
